preview.duolingo.com Open in urlscan Pro
44.220.104.173 Public Scan

Go To Rescan
Add Verdict Report

Submitted URL:
http://preview.duolingo.com/
Effective URL:
https://preview.duolingo.com/
Submission: On June 29 via api (June 29th 2024, 8:14:46 pm UTC) from US — Scanned from DE

Summary HTTP 95 Redirects Links 48 Behaviour Indicators

Summary

This website contacted 12 IPs in 3 countries across 8 domains to perform 95 HTTP transactions. The main IP is 44.220.104.173, located in Ashburn, United States and belongs to AMAZON-AES, US. The main domain is preview.duolingo.com.
TLS certificate: Issued by Go Daddy Secure Certificate Authority... on November 21st 2023. Valid for: a year.

This is the only time preview.duolingo.com was scanned on urlscan.io!

urlscan.io Verdict: No classification

Domain & IP information

	IP Address	AS Autonomous System
4	44.220.104.173 44.220.104.173	14618 (AMAZON-AES) (AMAZON-AES)
6	2606:4700::68... 2606:4700::6813:b234	13335 (CLOUDFLAR...) (CLOUDFLARENET)
2	2a00:1450:400... 2a00:1450:4001:809::2003	15169 (GOOGLE) (GOOGLE)
61	2600:9000:21f... 2600:9000:21f3:8400:7:60cd:e840:21	16509 (AMAZON-02) (AMAZON-02)
1	2a00:1450:400... 2a00:1450:4001:82a::2003	15169 (GOOGLE) (GOOGLE)
1	2606:4700:440... 2606:4700:4400::6812:2089	13335 (CLOUDFLAR...) (CLOUDFLARENET)
15	54.237.79.162 54.237.79.162	14618 (AMAZON-AES) (AMAZON-AES)
1	2a00:1450:400... 2a00:1450:4001:827::2008	15169 (GOOGLE) (GOOGLE)
2	2a00:1450:400... 2a00:1450:400c:c0a::54	15169 (GOOGLE) (GOOGLE)
1	18.245.31.39 18.245.31.39	16509 (AMAZON-02) (AMAZON-02)
1	18.173.205.12 18.173.205.12	16509 (AMAZON-02) (AMAZON-02)
95	12

4 44.220.104.173 (Ashburn, United States)

ASN14618 (AMAZON-AES, US)
PTR: ec2-44-220-104-173.compute-1.amazonaws.com

preview.duolingo.com	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

6 2606:4700::6813:b234 (United States)

ASN13335 (CLOUDFLARENET, US)

cdn.cookielaw.org	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

2 2a00:1450:4001:809::2003 (Frankfurt am Main, Germany)

ASN15169 (GOOGLE, US)

www.recaptcha.net	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

61 2600:9000:21f3:8400:7:60cd:e840:21 (United States)

ASN16509 (AMAZON-02, US)

d35aaqx5ub95lt.cloudfront.net	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

1 2a00:1450:4001:82a::2003 (Frankfurt am Main, Germany)

ASN15169 (GOOGLE, US)

www.gstatic.com	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

1 2606:4700:4400::6812:2089 (United States)

ASN13335 (CLOUDFLARENET, US)

geolocation.onetrust.com	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

15 54.237.79.162 (Ashburn, United States)

ASN14618 (AMAZON-AES, US)
PTR: ec2-54-237-79-162.compute-1.amazonaws.com

excess.duolingo.com	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

1 2a00:1450:4001:827::2008 (Frankfurt am Main, Germany)

ASN15169 (GOOGLE, US)

www.googletagmanager.com	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

2 2a00:1450:400c:c0a::54 (Brussels, Belgium)

ASN15169 (GOOGLE, US)

accounts.google.com	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

1 18.245.31.39 (United States)

ASN16509 (AMAZON-02, US)
PTR: server-18-245-31-39.fra56.r.cloudfront.net

brb.duolingo.com	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

1 18.173.205.12 (United States)

ASN16509 (AMAZON-02, US)
PTR: server-18-173-205-12.fra56.r.cloudfront.net

zombie.duolingo.com	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

	Apex Domain Subdomains	Transfer
61	cloudfront.net d35aaqx5ub95lt.cloudfront.net	2 MB
21	duolingo.com preview.duolingo.com excess.duolingo.com — Cisco Umbrella Rank: 8846 brb.duolingo.com — Cisco Umbrella Rank: 14135 zombie.duolingo.com — Cisco Umbrella Rank: 8861	15 KB
6	cookielaw.org cdn.cookielaw.org — Cisco Umbrella Rank: 378	148 KB
2	google.com accounts.google.com — Cisco Umbrella Rank: 45	84 KB
2	recaptcha.net www.recaptcha.net — Cisco Umbrella Rank: 1537	1 KB
1	googletagmanager.com www.googletagmanager.com — Cisco Umbrella Rank: 81	110 KB
1	onetrust.com geolocation.onetrust.com — Cisco Umbrella Rank: 653	315 B
1	gstatic.com www.gstatic.com	213 KB
95	8

	Domain	Requested by
61	d35aaqx5ub95lt.cloudfront.net	preview.duolingo.com d35aaqx5ub95lt.cloudfront.net
15	excess.duolingo.com	d35aaqx5ub95lt.cloudfront.net
6	cdn.cookielaw.org	preview.duolingo.com cdn.cookielaw.org
4	preview.duolingo.com	d35aaqx5ub95lt.cloudfront.net
2	accounts.google.com	d35aaqx5ub95lt.cloudfront.net accounts.google.com
2	www.recaptcha.net	preview.duolingo.com www.gstatic.com
1	zombie.duolingo.com	d35aaqx5ub95lt.cloudfront.net
1	brb.duolingo.com	d35aaqx5ub95lt.cloudfront.net
1	www.googletagmanager.com	d35aaqx5ub95lt.cloudfront.net
1	geolocation.onetrust.com	cdn.cookielaw.org
1	www.gstatic.com	www.recaptcha.net
95	11

This site contains links to these domains. Also see Links.

Domain
itunes.apple.com
play.google.com
englishtest.duolingo.com
schools.duolingo.com
blog.duolingo.com
careers.duolingo.com
research.duolingo.com
design.duolingo.com
store.duolingo.com
press.duolingo.com
investors.duolingo.com
podcast.duolingo.com
duolingoschools.zendesk.com
status.duolingo.com
www.instagram.com
www.facebook.com
twitter.com
www.youtube.com
ar.duolingo.com
bn.duolingo.com
cs.duolingo.com
de.duolingo.com
el.duolingo.com
en.duolingo.com
es.duolingo.com
fr.duolingo.com
hi.duolingo.com
hu.duolingo.com
id.duolingo.com
it.duolingo.com
ja.duolingo.com
ko.duolingo.com
dn.duolingo.com
pl.duolingo.com
pt.duolingo.com
ro.duolingo.com
ru.duolingo.com
te.duolingo.com
th.duolingo.com
tl.duolingo.com
tr.duolingo.com
uk.duolingo.com
vi.duolingo.com
zs.duolingo.com

Subject Issuer	Validity	Valid
*.duolingo.com Go Daddy Secure Certificate Authority - G2	`2023-11-21` - `2024-12-22`	a year	crt.sh
cookielaw.org Cloudflare Inc ECC CA-3	`2024-03-01` - `2024-12-31`	10 months	crt.sh
misc.google.com WR2	`2024-06-13` - `2024-09-05`	3 months	crt.sh
*.cloudfront.net Amazon RSA 2048 M01	`2023-10-10` - `2024-09-19`	a year	crt.sh
*.gstatic.com WR2	`2024-06-13` - `2024-09-05`	3 months	crt.sh
onetrust.com Cloudflare Inc ECC CA-3	`2023-11-13` - `2024-11-12`	a year	crt.sh
*.google-analytics.com WR2	`2024-06-13` - `2024-09-05`	3 months	crt.sh
accounts.google.com WR2	`2024-06-13` - `2024-09-05`	3 months	crt.sh

This page contains 2 frames:

Primary Page: https://preview.duolingo.com/
Frame ID: 47CD939B08278288C5D44381C6A12D32
Requests: 88 HTTP requests in this frame

Frame: https://www.recaptcha.net/recaptcha/enterprise/anchor?ar=1&k=6LcLOdsjAAAAAFfwGusLLnnn492SOGhsCh-uEAvI&co=aHR0cHM6Ly9wcmV2aWV3LmR1b2xpbmdvLmNvbTo0NDM.&hl=de&v=rKbTvxTxwcw5VqzrtN-ICwWt&size=invisible&cb=sk3kxjmwk5ow
Frame ID: 0F0672A99BF686AA36048007630F9432
Requests: 1 HTTP requests in this frame

Screenshot
Live screenshot

Full Image

Page Title

Duolingo - Die weltbeste Methode, eine Sprache zu lernen

Page URL History Show full URLs

http://preview.duolingo.com/ HTTP 307
https://preview.duolingo.com/ Page URL

Detected technologies

Google Sign-in (Social logins) Expand

Overall confidence: 100%
Detected patterns

accounts\.google\.com/gsi/client

React (JavaScript Frameworks) Expand

Overall confidence: 100%
Detected patterns

<[^>]+data-react

Google Tag Manager (Tag Managers) Expand

Overall confidence: 100%
Detected patterns

googletagmanager\.com/gtm\.js

OneTrust (Cookie compliance) Expand

Overall confidence: 100%
Detected patterns

cdn\.cookielaw\.org
otSDKStub\.js

Page Statistics

95
Requests

100 %
HTTPS

64 %
IPv6

8
Domains

11
Subdomains

12
IPs

3
Countries

2590 kB
Transfer

12031 kB
Size

12
Cookies

48 Outgoing links

These are links going to different origins than the main page.

URL: https://itunes.apple.com/de/app/duolingo-learn-spanish-french/id570060128?mt=8&at=1010lwpr
Title: badge-app-storeZum Download im App Store

Search URL Search Domain Scan URL

URL: https://play.google.com/store/apps/details?hl=de&id=com.duolingo&referrer=utm_source%3Dduolingo.com%26utm_medium%3Dduolingo_web%26utm_content%3Ddownload_button%26utm_campaign%3Dsplash
Title: badge-app-storeHol dir die App aufGoogle Play

Search URL Search Domain Scan URL

URL: https://englishtest.duolingo.com/de
Title: Englischkenntnisse zertifizieren

Search URL Search Domain Scan URL

URL: https://schools.duolingo.com/
Title: Bring deine Klasse auf den Weg

Search URL Search Domain Scan URL

URL: https://blog.duolingo.com/duolingo-launches-math-app
Title: Besser werden in Mathe

Search URL Search Domain Scan URL

URL: https://careers.duolingo.com/about
Title: Team

Search URL Search Domain Scan URL

URL: https://research.duolingo.com/
Title: Forschung

Search URL Search Domain Scan URL

URL: https://careers.duolingo.com/
Title: Karriere

Search URL Search Domain Scan URL

URL: https://design.duolingo.com/
Title: Markenrichtlinien

Search URL Search Domain Scan URL

URL: https://store.duolingo.com/
Title: Shop

Search URL Search Domain Scan URL

URL: https://press.duolingo.com/
Title: Presse

Search URL Search Domain Scan URL

URL: https://investors.duolingo.com/
Title: Investoren

Search URL Search Domain Scan URL

URL: https://podcast.duolingo.com/
Title: Podcast

Search URL Search Domain Scan URL

URL: https://duolingoschools.zendesk.com/hc/en-us
Title: FAQ für Schulen

Search URL Search Domain Scan URL

URL: https://englishtest.duolingo.com/faq
Title: Duolingo English Test FAQ

Search URL Search Domain Scan URL

URL: https://status.duolingo.com/
Title: Status

Search URL Search Domain Scan URL

URL: https://blog.duolingo.com/de
Title: Blog

Search URL Search Domain Scan URL

URL: https://www.instagram.com/duolingodeutschland/
Title: Instagram

Search URL Search Domain Scan URL

URL: https://www.facebook.com/DuolingoDeutschland
Title: Facebook

Search URL Search Domain Scan URL

URL: https://twitter.com/duolingo
Title: Twitter

Search URL Search Domain Scan URL

URL: https://www.youtube.com/user/duolingo
Title: YouTube

Search URL Search Domain Scan URL

URL: https://ar.duolingo.com/
Title: العربية

Search URL Search Domain Scan URL

URL: https://bn.duolingo.com/
Title: বাংলা

Search URL Search Domain Scan URL

URL: https://cs.duolingo.com/
Title: Čeština

Search URL Search Domain Scan URL

URL: https://de.duolingo.com/
Title: Deutsch

Search URL Search Domain Scan URL

URL: https://el.duolingo.com/
Title: Ελληνικά

Search URL Search Domain Scan URL

URL: https://en.duolingo.com/
Title: English

Search URL Search Domain Scan URL

URL: https://es.duolingo.com/
Title: Español

Search URL Search Domain Scan URL

URL: https://fr.duolingo.com/
Title: Français

Search URL Search Domain Scan URL

URL: https://hi.duolingo.com/
Title: हिंदी

Search URL Search Domain Scan URL

URL: https://hu.duolingo.com/
Title: Magyar

Search URL Search Domain Scan URL

URL: https://id.duolingo.com/
Title: Bahasa Indonesia

Search URL Search Domain Scan URL

URL: https://it.duolingo.com/
Title: Italiano

Search URL Search Domain Scan URL

URL: https://ja.duolingo.com/
Title: 日本語

Search URL Search Domain Scan URL

URL: https://ko.duolingo.com/
Title: 한국어

Search URL Search Domain Scan URL

URL: https://dn.duolingo.com/
Title: Nederlands

Search URL Search Domain Scan URL

URL: https://pl.duolingo.com/
Title: Polski

Search URL Search Domain Scan URL

URL: https://pt.duolingo.com/
Title: Português

Search URL Search Domain Scan URL

URL: https://ro.duolingo.com/
Title: Română

Search URL Search Domain Scan URL

URL: https://ru.duolingo.com/
Title: Русский

Search URL Search Domain Scan URL

URL: https://te.duolingo.com/
Title: తెలుగు

Search URL Search Domain Scan URL

URL: https://th.duolingo.com/
Title: ภาษาไทย

Search URL Search Domain Scan URL

URL: https://tl.duolingo.com/
Title: Tagalog

Search URL Search Domain Scan URL

URL: https://tr.duolingo.com/
Title: Türkçe

Search URL Search Domain Scan URL

URL: https://uk.duolingo.com/
Title: Українською

Search URL Search Domain Scan URL

URL: https://vi.duolingo.com/
Title: Tiếng Việt

Search URL Search Domain Scan URL

URL: https://zs.duolingo.com/
Title: 中文

Search URL Search Domain Scan URL

Page URL History

This captures the URL locations of the websites, including HTTP redirects and client-side redirects via JavaScript or Meta fields.

http://preview.duolingo.com/ HTTP 307
https://preview.duolingo.com/ Page URL

Redirected requests

There were HTTP redirect chains for the following requests:

95 HTTP transactions
1 data transactions

Method
Protocol Status Resource
Path Size
x-fer Time
Latency Type
MIME-Type IP
Location

GET
H2

200

Primary Request / Show response
preview.duolingo.com/
Redirect Chain

http://preview.duolingo.com/
https://preview.duolingo.com/

10 KB
4 KB

2613ms
148ms

Document
text/html

44.220.104.173
AMAZON-AES

General

Check archive.org

Show headers Download Go to

Full URL

https://preview.duolingo.com/

Protocol

Security

TLS 1.2, ECDHE_RSA, AES_128_GCM

Server

44.220.104.173 Ashburn, United States, ASN14618 (AMAZON-AES, US),

Reverse DNS

ec2-44-220-104-173.compute-1.amazonaws.com

Software

duo-api /

Resource Hash

b7109776177ee5b009ad67042247814eaa35f0a80f542cc96a8a51e2e6b2626a

Security Headers

Name	Value
X-Frame-Options	SAMEORIGIN

Request headers

Accept-Language: de-DE,de;q=0.9;q=0.9
Upgrade-Insecure-Requests: 1
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0.0.0 Safari/537.36

Response headers

cache-control: no-store, no-cache, must-revalidate, proxy-revalidate
content-encoding: gzip
content-type: text/html; charset=UTF-8
date: Sat, 29 Jun 2024 20:14:41 GMT
expires: 0
no-retry: 1
pragma: no-cache
server: duo-api
surrogate-control: no-store
x-duo-request-host: www.duolingo.com
x-envoy-upstream-service-time: 38
x-frame-options: SAMEORIGIN
x-runtime: 0.03603
x-tid: ffff5dde66806adf01aa
x-ws: UK

Redirect headers

Location: https://preview.duolingo.com/
Non-Authoritative-Reason: HttpsUpgrades

GET
H2 200 otSDKStub.js Show response
cdn.cookielaw.org/scripttemplates/ 21 KB
7 KB 89ms
39ms Script
application/javascript 2606:4700::6813:b234
CLOUDFLARENET

General

Check archive.org

Show headers Download Go to

Full URL

https://cdn.cookielaw.org/scripttemplates/otSDKStub.js

Requested by

Host: preview.duolingo.com
URL: https://preview.duolingo.com/

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

2606:4700::6813:b234 , United States, ASN13335 (CLOUDFLARENET, US),

Reverse DNS

Software

cloudflare /

Resource Hash

022e2f39deba7f332eabe69b27b31d98d4d5f2535116745957a691d1b1ec4cc5

Security Headers

Name	Value
Strict-Transport-Security	max-age=31536000; includeSubDomains; preload
X-Content-Type-Options	nosniff

Request headers

sec-ch-ua: "Google Chrome";v="126", "Not:A-Brand";v="8", "Chromium";v="126"
Referer: https://preview.duolingo.com/
Accept-Language: de-DE,de;q=0.9;q=0.9
sec-ch-ua-mobile: ?0
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0.0.0 Safari/537.36
sec-ch-ua-platform: "Win32"

Response headers

x-ms-blob-type: BlockBlob
date: Sat, 29 Jun 2024 20:14:41 GMT
content-encoding: gzip
x-content-type-options: nosniff
cf-cache-status: HIT
content-md5: ceCldLDyZN6bSQL6yyKLMg==
age: 8710
strict-transport-security: max-age=31536000; includeSubDomains; preload
content-length: 6882
x-ms-lease-status: unlocked
last-modified: Thu, 27 Jun 2024 19:49:58 GMT
server: cloudflare
etag: 0x8DC96E2535B2336
vary: Accept-Encoding
content-type: application/javascript
access-control-allow-origin: *
x-ms-request-id: 9c2b7048-201e-007d-6875-c90f42000000
access-control-expose-headers: x-ms-request-id,Server,x-ms-version,Content-Type,Content-Encoding,Last-Modified,ETag,Content-MD5,x-ms-lease-status,x-ms-blob-type,Content-Length,Date,Transfer-Encoding
cache-control: max-age=86400
x-ms-version: 2009-09-19
accept-ranges: bytes
cf-ray: 89b895937dc2361e-FRA

GET
H2 200 enterprise.js Show response
www.recaptcha.net/recaptcha/ 2 KB
1 KB 92ms
24ms Script
text/javascript 2a00:1450:4001:809::2003
GOOGLE

General

Check archive.org

Show headers Download Go to

Full URL

https://www.recaptcha.net/recaptcha/enterprise.js?render=6LcLOdsjAAAAAFfwGusLLnnn492SOGhsCh-uEAvI

Requested by

Host: preview.duolingo.com
URL: https://preview.duolingo.com/

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

2a00:1450:4001:809::2003 Frankfurt am Main, Germany, ASN15169 (GOOGLE, US),

Reverse DNS

Software

GSE /

Resource Hash

994f513ef39ee0a8841211ed866b4b9a57cec055a186816e7bfba9c47b867971

Security Headers

Name	Value
Content-Security-Policy	frame-ancestors 'self'
X-Content-Type-Options	nosniff
X-Frame-Options	SAMEORIGIN
X-Xss-Protection	1; mode=block

Request headers

sec-ch-ua: "Google Chrome";v="126", "Not:A-Brand";v="8", "Chromium";v="126"
Referer: https://preview.duolingo.com/
Accept-Language: de-DE,de;q=0.9;q=0.9
sec-ch-ua-mobile: ?0
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0.0.0 Safari/537.36
sec-ch-ua-platform: "Win32"

Response headers

date: Sat, 29 Jun 2024 20:14:41 GMT
content-encoding: gzip
x-content-type-options: nosniff
content-security-policy: frame-ancestors 'self'
server: GSE
x-frame-options: SAMEORIGIN
content-type: text/javascript; charset=utf-8
cache-control: private, max-age=300
cross-origin-resource-policy: cross-origin
alt-svc: h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
x-xss-protection: 1; mode=block
expires: Sat, 29 Jun 2024 20:14:41 GMT

GET
H2 200 manifest-e1c6673e.js Show response
d35aaqx5ub95lt.cloudfront.net/js/ 12 KB
6 KB 9ms
9ms Script
application/javascript 2600:9000:21f3:8400:7:60cd:e840:21
AMAZON-02

General

Check archive.org

Show headers Download Go to

Full URL: https://d35aaqx5ub95lt.cloudfront.net/js/manifest-e1c6673e.js
Requested by: Host: preview.duolingo.com
URL: https://preview.duolingo.com/
Protocol: H2
Security: TLS 1.3, , AES_128_GCM
Server: 2600:9000:21f3:8400:7:60cd:e840:21 , United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software: AmazonS3 /
Resource Hash: 14f0230bd03808d81b7537aff49d1b75130ac324f7bd20ed20e10705e9fde80d

Request headers

sec-ch-ua: "Google Chrome";v="126", "Not:A-Brand";v="8", "Chromium";v="126"
Referer: https://preview.duolingo.com/
Accept-Language: de-DE,de;q=0.9;q=0.9
sec-ch-ua-mobile: ?0
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0.0.0 Safari/537.36
sec-ch-ua-platform: "Win32"

Response headers

date: Wed, 26 Jun 2024 20:26:36 GMT
content-encoding: gzip
via: 1.1 03d509e8374e9f42668961b5e0201348.cloudfront.net (CloudFront)
last-modified: Wed, 26 Jun 2024 20:07:58 GMT
server: AmazonS3
x-amz-cf-pop: FRA2-C2
age: 258486
etag: "dfebbaa3a87dc026a4436ca15b7dc1b8"
x-amz-server-side-encryption: AES256
x-cache: Hit from cloudfront
content-type: application/javascript
cache-control: max-age=315360000
accept-ranges: bytes
content-length: 6103
x-amz-cf-id: rrwCKVt3LLSbimmp-Q0PqJaTMPjwJDVVkkBkAyETx2vnwDIs2JZDvw==

GET
H2 200 features-91ec4487.js Show response
d35aaqx5ub95lt.cloudfront.net/js/ 3 KB
2 KB 13ms
12ms Script
application/javascript 2600:9000:21f3:8400:7:60cd:e840:21
AMAZON-02

General

Check archive.org

Show headers Download Go to

Full URL: https://d35aaqx5ub95lt.cloudfront.net/js/features-91ec4487.js
Requested by: Host: preview.duolingo.com
URL: https://preview.duolingo.com/
Protocol: H2
Security: TLS 1.3, , AES_128_GCM
Server: 2600:9000:21f3:8400:7:60cd:e840:21 , United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software: AmazonS3 /
Resource Hash: f2d4ab9d2dff0e7dce8e81c2f13c53db9fdacb6c16445e7188176e06ca638317

Request headers

sec-ch-ua: "Google Chrome";v="126", "Not:A-Brand";v="8", "Chromium";v="126"
Referer: https://preview.duolingo.com/
Accept-Language: de-DE,de;q=0.9;q=0.9
sec-ch-ua-mobile: ?0
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AMAZON-02

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Full URL

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Full URL

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General

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Full URL

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Response headers

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AMAZON-02

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Response headers

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3 KB 15ms
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AMAZON-02

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Response headers

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AMAZON-02

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Response headers

date: Wed, 05 Jun 2024 20:28:35 GMT
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4 KB 15ms
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AMAZON-02

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Full URL: https://d35aaqx5ub95lt.cloudfront.net/js/5323-8f03072d.js
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Response headers

date: Wed, 26 Jun 2024 20:26:37 GMT
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AMAZON-02

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Show headers Download Go to

Full URL: https://d35aaqx5ub95lt.cloudfront.net/css/8575-d4a2cb87.css
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Response headers

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3 KB 16ms
15ms Script
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AMAZON-02

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Show headers Download Go to

Full URL: https://d35aaqx5ub95lt.cloudfront.net/js/8575-ba67d6c6.js
Requested by: Host: d35aaqx5ub95lt.cloudfront.net
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Response headers

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AMAZON-02

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Full URL: https://d35aaqx5ub95lt.cloudfront.net/css/4800-443eeb09.css
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Response headers

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AMAZON-02

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Full URL: https://d35aaqx5ub95lt.cloudfront.net/js/4800-7dda3d0f.js
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Response headers

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AMAZON-02

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6 KB 16ms
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7 KB 18ms
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AMAZON-02

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https://accounts.google.com/gsi/client

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GET
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777 B 74ms
26ms Fetch
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AMAZON-02

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Full URL: https://brb.duolingo.com/0/web.json?user=0&ts=1719692081&tzoffset=2
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778 B 73ms
17ms Fetch
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AMAZON-02

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Full URL: https://zombie.duolingo.com/0/web.json?user=0&ts=1719692081&tzoffset=2
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1 KB 120ms
120ms Fetch
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AMAZON-AES

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Full URL

https://preview.duolingo.com/2017-06-30/tracking-status

Requested by

Host: d35aaqx5ub95lt.cloudfront.net
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date: Sat, 29 Jun 2024 20:14:41 GMT
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GET
H2 200 config Show response
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1 KB 105ms
105ms Fetch
application/json 44.220.104.173
AMAZON-AES

General

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Full URL

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Requested by

Host: d35aaqx5ub95lt.cloudfront.net
URL: https://d35aaqx5ub95lt.cloudfront.net/js/app-74a2c064.js

Protocol

Security

TLS 1.2, ECDHE_RSA, AES_128_GCM

Server

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Request headers

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X-Requested-With: XMLHttpRequest
sec-ch-ua-platform: "Win32"

Response headers

pragma: no-cache
date: Sat, 29 Jun 2024 20:14:41 GMT
content-encoding: br
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content-type: application/json
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POST
H2 200 batch Show response
excess.duolingo.com/ 34 B
311 B 119ms
118ms XHR
text/plain 54.237.79.162
AMAZON-AES

General

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Show headers Download Go to

Full URL: https://excess.duolingo.com/batch
Requested by: Host: d35aaqx5ub95lt.cloudfront.net
URL: https://d35aaqx5ub95lt.cloudfront.net/js/663-5ea7c925.js
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Request headers

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sec-ch-ua-platform: "Win32"
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sec-ch-ua-mobile: ?0
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0.0.0 Safari/537.36
Content-type: application/json

Response headers

date: Sat, 29 Jun 2024 20:14:41 GMT
accept-encoding: gzip, identity
server: Jetty(9.4.53.v20231009)
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39 KB 20ms
5ms Image
image/svg+xml 2600:9000:21f3:8400:7:60cd:e840:21
AMAZON-02

General

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Show headers Download Go to Show image

Full URL: https://d35aaqx5ub95lt.cloudfront.net/vendor/87938207afff1598611ba626a8c4827c.svg
Requested by: Host: preview.duolingo.com
URL: https://preview.duolingo.com/
Protocol: H2
Security: TLS 1.3, , AES_128_GCM
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Request headers

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Accept-Language: de-DE,de;q=0.9;q=0.9
sec-ch-ua-mobile: ?0
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sec-ch-ua-platform: "Win32"

Response headers

date: Sat, 16 Mar 2024 00:55:35 GMT
content-encoding: gzip
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3 KB 22ms
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AMAZON-02

General

Check archive.org

Show headers Download Go to Show image

Full URL: https://d35aaqx5ub95lt.cloudfront.net/images/splash/f92d5f2f7d56636846861c458c0d0b6c.svg
Requested by: Host: preview.duolingo.com
URL: https://preview.duolingo.com/
Protocol: H2
Security: TLS 1.3, , AES_128_GCM
Server: 2600:9000:21f3:8400:7:60cd:e840:21 , United States, ASN16509 (AMAZON-02, US),
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Request headers

sec-ch-ua: "Google Chrome";v="126", "Not:A-Brand";v="8", "Chromium";v="126"
Referer: https://preview.duolingo.com/
Accept-Language: de-DE,de;q=0.9;q=0.9
sec-ch-ua-mobile: ?0
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0.0.0 Safari/537.36
sec-ch-ua-platform: "Win32"

Response headers

date: Sun, 31 Dec 2023 22:04:04 GMT
content-encoding: gzip
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40 KB 23ms
9ms Image
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AMAZON-02

General

Check archive.org

Show headers Download Go to Show image

Full URL: https://d35aaqx5ub95lt.cloudfront.net/images/splash/lottie/23ab11cb1e1a9aff54facdf57833373d.svg
Requested by: Host: preview.duolingo.com
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Security: TLS 1.3, , AES_128_GCM
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Request headers

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sec-ch-ua-mobile: ?0
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Response headers

date: Wed, 17 Jan 2024 15:14:54 GMT
content-encoding: gzip
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40 KB 26ms
13ms Image
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AMAZON-02

General

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Show headers Download Go to Show image

Full URL: https://d35aaqx5ub95lt.cloudfront.net/images/splash/lottie/08ec8d0260c55c054e1b97bcbc96ea0f.svg
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Protocol: H2
Security: TLS 1.3, , AES_128_GCM
Server: 2600:9000:21f3:8400:7:60cd:e840:21 , United States, ASN16509 (AMAZON-02, US),
Reverse DNS
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Request headers

sec-ch-ua: "Google Chrome";v="126", "Not:A-Brand";v="8", "Chromium";v="126"
Referer: https://preview.duolingo.com/
Accept-Language: de-DE,de;q=0.9;q=0.9
sec-ch-ua-mobile: ?0
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0.0.0 Safari/537.36
sec-ch-ua-platform: "Win32"

Response headers

date: Sun, 31 Dec 2023 22:04:04 GMT
content-encoding: gzip
via: 1.1 03d509e8374e9f42668961b5e0201348.cloudfront.net (CloudFront)
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server: AmazonS3
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GET
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122 KB 55ms
41ms Image
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AMAZON-02

General

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Show headers Download Go to Show image

Full URL: https://d35aaqx5ub95lt.cloudfront.net/images/splash/lottie/833a22b2834050d139f266a29899bb00.svg
Requested by: Host: preview.duolingo.com
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Security: TLS 1.3, , AES_128_GCM
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Request headers

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Accept-Language: de-DE,de;q=0.9;q=0.9
sec-ch-ua-mobile: ?0
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0.0.0 Safari/537.36
sec-ch-ua-platform: "Win32"

Response headers

date: Wed, 11 Oct 2023 20:18:04 GMT
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35 KB 61ms
48ms Image
image/svg+xml 2600:9000:21f3:8400:7:60cd:e840:21
AMAZON-02

General

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Show headers Download Go to Show image

Full URL: https://d35aaqx5ub95lt.cloudfront.net/images/splash/lottie/9d3c2c99dd19996319a372f79b2ed3c1.svg
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URL: https://preview.duolingo.com/
Protocol: H2
Security: TLS 1.3, , AES_128_GCM
Server: 2600:9000:21f3:8400:7:60cd:e840:21 , United States, ASN16509 (AMAZON-02, US),
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Request headers

sec-ch-ua: "Google Chrome";v="126", "Not:A-Brand";v="8", "Chromium";v="126"
Referer: https://preview.duolingo.com/
Accept-Language: de-DE,de;q=0.9;q=0.9
sec-ch-ua-mobile: ?0
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Response headers

date: Fri, 31 May 2024 01:24:15 GMT
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12 KB 61ms
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image/svg+xml 2600:9000:21f3:8400:7:60cd:e840:21
AMAZON-02

General

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Show headers Download Go to Show image

Full URL: https://d35aaqx5ub95lt.cloudfront.net/images/splash/lottie/229d5f88cc9df2eb0b68f39466500911.svg
Requested by: Host: preview.duolingo.com
URL: https://preview.duolingo.com/
Protocol: H2
Security: TLS 1.3, , AES_128_GCM
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Request headers

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sec-ch-ua-mobile: ?0
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0.0.0 Safari/537.36
sec-ch-ua-platform: "Win32"

Response headers

date: Tue, 21 May 2024 06:49:52 GMT
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8 KB 64ms
52ms Image
image/svg+xml 2600:9000:21f3:8400:7:60cd:e840:21
AMAZON-02

General

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Show headers Download Go to Show image

Full URL: https://d35aaqx5ub95lt.cloudfront.net/images/splash/lottie/22fce01f6df43e0472d7585afad9a43a.svg
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Protocol: H2
Security: TLS 1.3, , AES_128_GCM
Server: 2600:9000:21f3:8400:7:60cd:e840:21 , United States, ASN16509 (AMAZON-02, US),
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Request headers

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Referer: https://preview.duolingo.com/
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sec-ch-ua-mobile: ?0
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sec-ch-ua-platform: "Win32"

Response headers

date: Fri, 31 May 2024 01:25:23 GMT
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15 KB 65ms
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image/svg+xml 2600:9000:21f3:8400:7:60cd:e840:21
AMAZON-02

General

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Show headers Download Go to Show image

Full URL: https://d35aaqx5ub95lt.cloudfront.net/images/splash/3a733db6d6873e1a915f70cf72554ce3.svg
Requested by: Host: preview.duolingo.com
URL: https://preview.duolingo.com/
Protocol: H2
Security: TLS 1.3, , AES_128_GCM
Server: 2600:9000:21f3:8400:7:60cd:e840:21 , United States, ASN16509 (AMAZON-02, US),
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Request headers

sec-ch-ua: "Google Chrome";v="126", "Not:A-Brand";v="8", "Chromium";v="126"
Referer: https://preview.duolingo.com/
Accept-Language: de-DE,de;q=0.9;q=0.9
sec-ch-ua-mobile: ?0
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0.0.0 Safari/537.36
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Response headers

date: Sat, 13 Jan 2024 01:31:33 GMT
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14 KB 65ms
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image/svg+xml 2600:9000:21f3:8400:7:60cd:e840:21
AMAZON-02

General

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Show headers Download Go to Show image

Full URL: https://d35aaqx5ub95lt.cloudfront.net/images/splash/lottie/41a326f8a1a43ee68ef5ea35988fd87b.svg
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URL: https://preview.duolingo.com/
Protocol: H2
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Request headers

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Referer: https://preview.duolingo.com/
Accept-Language: de-DE,de;q=0.9;q=0.9
sec-ch-ua-mobile: ?0
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sec-ch-ua-platform: "Win32"

Response headers

date: Sun, 31 Dec 2023 22:04:04 GMT
content-encoding: gzip
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GET
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17 KB 69ms
57ms Image
image/svg+xml 2600:9000:21f3:8400:7:60cd:e840:21
AMAZON-02

General

Check archive.org

Show headers Download Go to Show image

Full URL: https://d35aaqx5ub95lt.cloudfront.net/images/splash/lottie/9f63957bf97d10730813cbb715a0baa0.svg
Requested by: Host: preview.duolingo.com
URL: https://preview.duolingo.com/
Protocol: H2
Security: TLS 1.3, , AES_128_GCM
Server: 2600:9000:21f3:8400:7:60cd:e840:21 , United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software: AmazonS3 /
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Request headers

sec-ch-ua: "Google Chrome";v="126", "Not:A-Brand";v="8", "Chromium";v="126"
Referer: https://preview.duolingo.com/
Accept-Language: de-DE,de;q=0.9;q=0.9
sec-ch-ua-mobile: ?0
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0.0.0 Safari/537.36
sec-ch-ua-platform: "Win32"

Response headers

date: Mon, 25 Dec 2023 14:10:24 GMT
content-encoding: gzip
via: 1.1 03d509e8374e9f42668961b5e0201348.cloudfront.net (CloudFront)
last-modified: Fri, 15 Dec 2023 17:23:20 GMT
server: AmazonS3
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age: 16178657
etag: "716ce07c484dc73bb7abe5b7ab6a7ae8"
x-amz-server-side-encryption: AES256
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GET
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30 KB 69ms
58ms Image
image/svg+xml 2600:9000:21f3:8400:7:60cd:e840:21
AMAZON-02

General

Check archive.org

Show headers Download Go to Show image

Full URL: https://d35aaqx5ub95lt.cloudfront.net/images/splash/lottie/268877aef1bcca8a53f24b746483346c.svg
Requested by: Host: preview.duolingo.com
URL: https://preview.duolingo.com/
Protocol: H2
Security: TLS 1.3, , AES_128_GCM
Server: 2600:9000:21f3:8400:7:60cd:e840:21 , United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software: AmazonS3 /
Resource Hash: e72971ce78cd7f03060cf192ebe81b92d0cf6491aa1bd4dd1cd6c5ae93df05e2

Request headers

sec-ch-ua: "Google Chrome";v="126", "Not:A-Brand";v="8", "Chromium";v="126"
Referer: https://preview.duolingo.com/
Accept-Language: de-DE,de;q=0.9;q=0.9
sec-ch-ua-mobile: ?0
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0.0.0 Safari/537.36
sec-ch-ua-platform: "Win32"

Response headers

date: Wed, 11 Oct 2023 20:18:04 GMT
content-encoding: gzip
via: 1.1 03d509e8374e9f42668961b5e0201348.cloudfront.net (CloudFront)
last-modified: Wed, 11 Oct 2023 19:37:56 GMT
server: AmazonS3
x-amz-cf-pop: FRA2-C2
age: 22636598
etag: "64d1d8cdd55e21940f1ae1f5412069d1"
x-amz-server-side-encryption: AES256
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GET
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20 KB 72ms
61ms Image
image/svg+xml 2600:9000:21f3:8400:7:60cd:e840:21
AMAZON-02

General

Check archive.org

Show headers Download Go to Show image

Full URL: https://d35aaqx5ub95lt.cloudfront.net/images/splash/lottie/1dacb3e2a288440001755c6a30e5ec60.svg
Requested by: Host: preview.duolingo.com
URL: https://preview.duolingo.com/
Protocol: H2
Security: TLS 1.3, , AES_128_GCM
Server: 2600:9000:21f3:8400:7:60cd:e840:21 , United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software: AmazonS3 /
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Request headers

sec-ch-ua: "Google Chrome";v="126", "Not:A-Brand";v="8", "Chromium";v="126"
Referer: https://preview.duolingo.com/
Accept-Language: de-DE,de;q=0.9;q=0.9
sec-ch-ua-mobile: ?0
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0.0.0 Safari/537.36
sec-ch-ua-platform: "Win32"

Response headers

date: Wed, 11 Oct 2023 20:18:04 GMT
content-encoding: gzip
via: 1.1 03d509e8374e9f42668961b5e0201348.cloudfront.net (CloudFront)
last-modified: Wed, 11 Oct 2023 19:37:56 GMT
server: AmazonS3
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x-amz-server-side-encryption: AES256
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GET
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17 KB 73ms
62ms Image
image/svg+xml 2600:9000:21f3:8400:7:60cd:e840:21
AMAZON-02

General

Check archive.org

Show headers Download Go to Show image

Full URL: https://d35aaqx5ub95lt.cloudfront.net/images/splash/lottie/890eb76de9a395b182c1c28322721405.svg
Requested by: Host: preview.duolingo.com
URL: https://preview.duolingo.com/
Protocol: H2
Security: TLS 1.3, , AES_128_GCM
Server: 2600:9000:21f3:8400:7:60cd:e840:21 , United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software: AmazonS3 /
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Request headers

sec-ch-ua: "Google Chrome";v="126", "Not:A-Brand";v="8", "Chromium";v="126"
Referer: https://preview.duolingo.com/
Accept-Language: de-DE,de;q=0.9;q=0.9
sec-ch-ua-mobile: ?0
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0.0.0 Safari/537.36
sec-ch-ua-platform: "Win32"

Response headers

date: Thu, 11 Jan 2024 11:21:22 GMT
content-encoding: gzip
via: 1.1 03d509e8374e9f42668961b5e0201348.cloudfront.net (CloudFront)
last-modified: Thu, 11 Jan 2024 08:32:13 GMT
server: AmazonS3
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age: 14719999
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x-amz-server-side-encryption: AES256
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x-amz-cf-id: ylwIZgmFdIlELtD_hcFnHc6GwhXvBBf7ve6Du6SsL1oTmfCKn5DsjA==

POST
H2 200 batch Show response
excess.duolingo.com/ 34 B
311 B 145ms
144ms XHR
text/plain 54.237.79.162
AMAZON-AES

General

Check archive.org

Show headers Download Go to

Full URL: https://excess.duolingo.com/batch
Requested by: Host: d35aaqx5ub95lt.cloudfront.net
URL: https://d35aaqx5ub95lt.cloudfront.net/js/663-5ea7c925.js
Protocol: H2
Security: TLS 1.2, ECDHE_RSA, AES_128_GCM
Server: 54.237.79.162 Ashburn, United States, ASN14618 (AMAZON-AES, US),
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Software: Jetty(9.4.53.v20231009) /
Resource Hash: 26503ab2f8fd7184b8f272f63557e8d0b61c9d3cb6ee042e37a4e541dc2eb615

Request headers

sec-ch-ua: "Google Chrome";v="126", "Not:A-Brand";v="8", "Chromium";v="126"
sec-ch-ua-platform: "Win32"
Referer: https://preview.duolingo.com/
Accept-Language: de-DE,de;q=0.9;q=0.9
sec-ch-ua-mobile: ?0
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0.0.0 Safari/537.36
Content-type: application/json

Response headers

date: Sat, 29 Jun 2024 20:14:41 GMT
accept-encoding: gzip, identity
server: Jetty(9.4.53.v20231009)
access-control-max-age: 3600
access-control-allow-methods: POST, GET, OPTIONS
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access-control-allow-origin: *
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content-length: 34

POST
H2 200 batch Show response
excess.duolingo.com/ 34 B
311 B 112ms
111ms XHR
text/plain 54.237.79.162
AMAZON-AES

General

Check archive.org

Show headers Download Go to

Full URL: https://excess.duolingo.com/batch
Requested by: Host: d35aaqx5ub95lt.cloudfront.net
URL: https://d35aaqx5ub95lt.cloudfront.net/js/663-5ea7c925.js
Protocol: H2
Security: TLS 1.2, ECDHE_RSA, AES_128_GCM
Server: 54.237.79.162 Ashburn, United States, ASN14618 (AMAZON-AES, US),
Reverse DNS: ec2-54-237-79-162.compute-1.amazonaws.com
Software: Jetty(9.4.53.v20231009) /
Resource Hash: 26503ab2f8fd7184b8f272f63557e8d0b61c9d3cb6ee042e37a4e541dc2eb615

Request headers

sec-ch-ua: "Google Chrome";v="126", "Not:A-Brand";v="8", "Chromium";v="126"
sec-ch-ua-platform: "Win32"
Referer: https://preview.duolingo.com/
Accept-Language: de-DE,de;q=0.9;q=0.9
sec-ch-ua-mobile: ?0
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0.0.0 Safari/537.36
Content-type: application/json

Response headers

date: Sat, 29 Jun 2024 20:14:41 GMT
accept-encoding: gzip, identity
server: Jetty(9.4.53.v20231009)
access-control-max-age: 3600
access-control-allow-methods: POST, GET, OPTIONS
content-type: text/plain;charset=iso-8859-1
access-control-allow-origin: *
access-control-allow-headers: Content-Type, Access-Control-Allow-Headers, Authorization
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GET
H2 200 list Show response
preview.duolingo.com/api/1/courses/ 31 KB
4 KB 151ms
140ms Fetch
application/json 44.220.104.173
AMAZON-AES

General

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Show headers Download Go to

Full URL

https://preview.duolingo.com/api/1/courses/list?_=1719692081552

Requested by

Host: d35aaqx5ub95lt.cloudfront.net
URL: https://d35aaqx5ub95lt.cloudfront.net/js/app-74a2c064.js

Protocol

Security

TLS 1.2, ECDHE_RSA, AES_128_GCM

Server

44.220.104.173 Ashburn, United States, ASN14618 (AMAZON-AES, US),

Reverse DNS

ec2-44-220-104-173.compute-1.amazonaws.com

Software

duo-api /

Resource Hash

f6653fb61cca10c3f038715db434435b1edf7aed3338d38ed73855ac9813924c

Security Headers

Name	Value
X-Frame-Options	SAMEORIGIN

Request headers

sec-ch-ua: "Google Chrome";v="126", "Not:A-Brand";v="8", "Chromium";v="126"
Accept-Language: de-DE,de;q=0.9;q=0.9
sec-ch-ua-mobile: ?0
X-Amzn-Trace-Id: User=0
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0.0.0 Safari/537.36
Accept: application/json; charset=UTF-8
Referer: https://preview.duolingo.com/
X-Requested-With: XMLHttpRequest
sec-ch-ua-platform: "Win32"

Response headers

pragma: no-cache
date: Sat, 29 Jun 2024 20:14:41 GMT
content-encoding: gzip
x-runtime: 0.03819
server: duo-api
x-ws: UK
no-retry: 1
x-tid: ffff5dde66806adf01ae
surrogate-control: no-store
x-frame-options: SAMEORIGIN
content-type: application/json; charset=UTF-8
x-duo-request-host: www.duolingo.com
cache-control: no-store, no-cache, must-revalidate, proxy-revalidate
x-envoy-upstream-service-time: 40
expires: 0

POST
H2 200 batch Show response
excess.duolingo.com/ 34 B
311 B 106ms
104ms XHR
text/plain 54.237.79.162
AMAZON-AES

General

Check archive.org

Show headers Download Go to

Full URL: https://excess.duolingo.com/batch
Requested by: Host: d35aaqx5ub95lt.cloudfront.net
URL: https://d35aaqx5ub95lt.cloudfront.net/js/663-5ea7c925.js
Protocol: H2
Security: TLS 1.2, ECDHE_RSA, AES_128_GCM
Server: 54.237.79.162 Ashburn, United States, ASN14618 (AMAZON-AES, US),
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Software: Jetty(9.4.53.v20231009) /
Resource Hash: 26503ab2f8fd7184b8f272f63557e8d0b61c9d3cb6ee042e37a4e541dc2eb615

Request headers

sec-ch-ua: "Google Chrome";v="126", "Not:A-Brand";v="8", "Chromium";v="126"
sec-ch-ua-platform: "Win32"
Referer: https://preview.duolingo.com/
Accept-Language: de-DE,de;q=0.9;q=0.9
sec-ch-ua-mobile: ?0
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0.0.0 Safari/537.36
Content-type: application/json

Response headers

date: Sat, 29 Jun 2024 20:14:41 GMT
accept-encoding: gzip, identity
server: Jetty(9.4.53.v20231009)
access-control-max-age: 3600
access-control-allow-methods: POST, GET, OPTIONS
content-type: text/plain;charset=iso-8859-1
access-control-allow-origin: *
access-control-allow-headers: Content-Type, Access-Control-Allow-Headers, Authorization
content-length: 34

POST
H2 200 batch Show response
excess.duolingo.com/ 34 B
311 B 110ms
109ms XHR
text/plain 54.237.79.162
AMAZON-AES

General

Check archive.org

Show headers Download Go to

Full URL: https://excess.duolingo.com/batch
Requested by: Host: d35aaqx5ub95lt.cloudfront.net
URL: https://d35aaqx5ub95lt.cloudfront.net/js/663-5ea7c925.js
Protocol: H2
Security: TLS 1.2, ECDHE_RSA, AES_128_GCM
Server: 54.237.79.162 Ashburn, United States, ASN14618 (AMAZON-AES, US),
Reverse DNS: ec2-54-237-79-162.compute-1.amazonaws.com
Software: Jetty(9.4.53.v20231009) /
Resource Hash: 26503ab2f8fd7184b8f272f63557e8d0b61c9d3cb6ee042e37a4e541dc2eb615

Request headers

sec-ch-ua: "Google Chrome";v="126", "Not:A-Brand";v="8", "Chromium";v="126"
sec-ch-ua-platform: "Win32"
Referer: https://preview.duolingo.com/
Accept-Language: de-DE,de;q=0.9;q=0.9
sec-ch-ua-mobile: ?0
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0.0.0 Safari/537.36
Content-type: application/json

Response headers

date: Sat, 29 Jun 2024 20:14:41 GMT
accept-encoding: gzip, identity
server: Jetty(9.4.53.v20231009)
access-control-max-age: 3600
access-control-allow-methods: POST, GET, OPTIONS
content-type: text/plain;charset=iso-8859-1
access-control-allow-origin: *
access-control-allow-headers: Content-Type, Access-Control-Allow-Headers, Authorization
content-length: 34

POST
H2 200 batch Show response
excess.duolingo.com/ 34 B
311 B 115ms
115ms XHR
text/plain 54.237.79.162
AMAZON-AES

General

Check archive.org

Show headers Download Go to

Full URL: https://excess.duolingo.com/batch
Requested by: Host: d35aaqx5ub95lt.cloudfront.net
URL: https://d35aaqx5ub95lt.cloudfront.net/js/663-5ea7c925.js
Protocol: H2
Security: TLS 1.2, ECDHE_RSA, AES_128_GCM
Server: 54.237.79.162 Ashburn, United States, ASN14618 (AMAZON-AES, US),
Reverse DNS: ec2-54-237-79-162.compute-1.amazonaws.com
Software: Jetty(9.4.53.v20231009) /
Resource Hash: 26503ab2f8fd7184b8f272f63557e8d0b61c9d3cb6ee042e37a4e541dc2eb615

Request headers

sec-ch-ua: "Google Chrome";v="126", "Not:A-Brand";v="8", "Chromium";v="126"
sec-ch-ua-platform: "Win32"
Referer: https://preview.duolingo.com/
Accept-Language: de-DE,de;q=0.9;q=0.9
sec-ch-ua-mobile: ?0
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0.0.0 Safari/537.36
Content-type: application/json

Response headers

date: Sat, 29 Jun 2024 20:14:41 GMT
accept-encoding: gzip, identity
server: Jetty(9.4.53.v20231009)
access-control-max-age: 3600
access-control-allow-methods: POST, GET, OPTIONS
content-type: text/plain;charset=iso-8859-1
access-control-allow-origin: *
access-control-allow-headers: Content-Type, Access-Control-Allow-Headers, Authorization
content-length: 34

POST
H2 200 batch Show response
excess.duolingo.com/ 34 B
311 B 112ms
112ms XHR
text/plain 54.237.79.162
AMAZON-AES

General

Check archive.org

Show headers Download Go to

Full URL: https://excess.duolingo.com/batch
Requested by: Host: d35aaqx5ub95lt.cloudfront.net
URL: https://d35aaqx5ub95lt.cloudfront.net/js/663-5ea7c925.js
Protocol: H2
Security: TLS 1.2, ECDHE_RSA, AES_128_GCM
Server: 54.237.79.162 Ashburn, United States, ASN14618 (AMAZON-AES, US),
Reverse DNS: ec2-54-237-79-162.compute-1.amazonaws.com
Software: Jetty(9.4.53.v20231009) /
Resource Hash: 26503ab2f8fd7184b8f272f63557e8d0b61c9d3cb6ee042e37a4e541dc2eb615

Request headers

sec-ch-ua: "Google Chrome";v="126", "Not:A-Brand";v="8", "Chromium";v="126"
sec-ch-ua-platform: "Win32"
Referer: https://preview.duolingo.com/
Accept-Language: de-DE,de;q=0.9;q=0.9
sec-ch-ua-mobile: ?0
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0.0.0 Safari/537.36
Content-type: application/json

Response headers

date: Sat, 29 Jun 2024 20:14:41 GMT
accept-encoding: gzip, identity
server: Jetty(9.4.53.v20231009)
access-control-max-age: 3600
access-control-allow-methods: POST, GET, OPTIONS
content-type: text/plain;charset=iso-8859-1
access-control-allow-origin: *
access-control-allow-headers: Content-Type, Access-Control-Allow-Headers, Authorization
content-length: 34

GET
H2 200 c6eae48dd48246c89e415b89f9e55282.svg
d35aaqx5ub95lt.cloudfront.net/images/splash/ 345 B
627 B 77ms
67ms Image
image/svg+xml 2600:9000:21f3:8400:7:60cd:e840:21
AMAZON-02

General

Check archive.org

Show headers Download Go to Show image

Full URL: https://d35aaqx5ub95lt.cloudfront.net/images/splash/c6eae48dd48246c89e415b89f9e55282.svg
Requested by: Host: preview.duolingo.com
URL: https://preview.duolingo.com/
Protocol: H2
Security: TLS 1.3, , AES_128_GCM
Server: 2600:9000:21f3:8400:7:60cd:e840:21 , United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software: AmazonS3 /
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Request headers

sec-ch-ua: "Google Chrome";v="126", "Not:A-Brand";v="8", "Chromium";v="126"
Referer: https://preview.duolingo.com/
Accept-Language: de-DE,de;q=0.9;q=0.9
sec-ch-ua-mobile: ?0
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0.0.0 Safari/537.36
sec-ch-ua-platform: "Win32"

Response headers

date: Tue, 09 Apr 2024 07:26:26 GMT
content-encoding: gzip
via: 1.1 03d509e8374e9f42668961b5e0201348.cloudfront.net (CloudFront)
last-modified: Mon, 08 Apr 2024 15:47:27 GMT
server: AmazonS3
x-amz-cf-pop: FRA2-C2
age: 7044496
etag: "46650a8f1735be1432fbd4689b40ba41"
x-amz-server-side-encryption: AES256
x-cache: Hit from cloudfront
content-type: image/svg+xml
cache-control: max-age=315360000
accept-ranges: bytes
content-length: 236
x-amz-cf-id: BnqMEv7Iyn7RA4Qps5-iz2gvhMBmZz_QpRZn6h1pJ9eMW1ZhXqSCig==

OPTIONS
H2 200 batch
excess.duolingo.com/ Frame 0
0 289ms
95ms Preflight 54.237.79.162
AMAZON-AES

General

Check archive.org

Show headers Download Go to

Full URL: https://excess.duolingo.com/batch
Protocol: H2
Security: TLS 1.2, ECDHE_RSA, AES_128_GCM
Server: 54.237.79.162 Ashburn, United States, ASN14618 (AMAZON-AES, US),
Reverse DNS: ec2-54-237-79-162.compute-1.amazonaws.com
Software: Jetty(9.4.53.v20231009) /
Resource Hash

Request headers

Accept: */*
Access-Control-Request-Headers: content-type
Access-Control-Request-Method: POST
Origin: https://preview.duolingo.com
Sec-Fetch-Mode: cors
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0.0.0 Safari/537.36

Response headers

accept-encoding: gzip, identity
access-control-allow-headers: Content-Type, Access-Control-Allow-Headers, Authorization
access-control-allow-methods: POST, GET, OPTIONS
access-control-allow-origin: *
access-control-max-age: 3600
allow: GET, HEAD, POST, TRACE, OPTIONS
content-length: 0
date: Sat, 29 Jun 2024 20:14:41 GMT
server: Jetty(9.4.53.v20231009)

OPTIONS
H2 200 batch
excess.duolingo.com/ Frame 0
0 288ms
95ms Preflight 54.237.79.162
AMAZON-AES

General

Check archive.org

Show headers Download Go to

Full URL: https://excess.duolingo.com/batch
Protocol: H2
Security: TLS 1.2, ECDHE_RSA, AES_128_GCM
Server: 54.237.79.162 Ashburn, United States, ASN14618 (AMAZON-AES, US),
Reverse DNS: ec2-54-237-79-162.compute-1.amazonaws.com
Software: Jetty(9.4.53.v20231009) /
Resource Hash

Request headers

Accept: */*
Access-Control-Request-Headers: content-type
Access-Control-Request-Method: POST
Origin: https://preview.duolingo.com
Sec-Fetch-Mode: cors
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0.0.0 Safari/537.36

Response headers

accept-encoding: gzip, identity
access-control-allow-headers: Content-Type, Access-Control-Allow-Headers, Authorization
access-control-allow-methods: POST, GET, OPTIONS
access-control-allow-origin: *
access-control-max-age: 3600
allow: GET, HEAD, POST, TRACE, OPTIONS
content-length: 0
date: Sat, 29 Jun 2024 20:14:41 GMT
server: Jetty(9.4.53.v20231009)

OPTIONS
H2 200 batch
excess.duolingo.com/ Frame 0
0 287ms
94ms Preflight 54.237.79.162
AMAZON-AES

General

Check archive.org

Show headers Download Go to

Full URL: https://excess.duolingo.com/batch
Protocol: H2
Security: TLS 1.2, ECDHE_RSA, AES_128_GCM
Server: 54.237.79.162 Ashburn, United States, ASN14618 (AMAZON-AES, US),
Reverse DNS: ec2-54-237-79-162.compute-1.amazonaws.com
Software: Jetty(9.4.53.v20231009) /
Resource Hash

Request headers

Accept: */*
Access-Control-Request-Headers: content-type
Access-Control-Request-Method: POST
Origin: https://preview.duolingo.com
Sec-Fetch-Mode: cors
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0.0.0 Safari/537.36

Response headers

accept-encoding: gzip, identity
access-control-allow-headers: Content-Type, Access-Control-Allow-Headers, Authorization
access-control-allow-methods: POST, GET, OPTIONS
access-control-allow-origin: *
access-control-max-age: 3600
allow: GET, HEAD, POST, TRACE, OPTIONS
content-length: 0
date: Sat, 29 Jun 2024 20:14:41 GMT
server: Jetty(9.4.53.v20231009)

OPTIONS
H2 200 batch
excess.duolingo.com/ Frame 0
0 288ms
95ms Preflight 54.237.79.162
AMAZON-AES

General

Check archive.org

Show headers Download Go to

Full URL: https://excess.duolingo.com/batch
Protocol: H2
Security: TLS 1.2, ECDHE_RSA, AES_128_GCM
Server: 54.237.79.162 Ashburn, United States, ASN14618 (AMAZON-AES, US),
Reverse DNS: ec2-54-237-79-162.compute-1.amazonaws.com
Software: Jetty(9.4.53.v20231009) /
Resource Hash

Request headers

Accept: */*
Access-Control-Request-Headers: content-type
Access-Control-Request-Method: POST
Origin: https://preview.duolingo.com
Sec-Fetch-Mode: cors
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0.0.0 Safari/537.36

Response headers

accept-encoding: gzip, identity
access-control-allow-headers: Content-Type, Access-Control-Allow-Headers, Authorization
access-control-allow-methods: POST, GET, OPTIONS
access-control-allow-origin: *
access-control-max-age: 3600
allow: GET, HEAD, POST, TRACE, OPTIONS
content-length: 0
date: Sat, 29 Jun 2024 20:14:41 GMT
server: Jetty(9.4.53.v20231009)

OPTIONS
H2 200 batch
excess.duolingo.com/ Frame 0
0 289ms
95ms Preflight 54.237.79.162
AMAZON-AES

General

Check archive.org

Show headers Download Go to

Full URL: https://excess.duolingo.com/batch
Protocol: H2
Security: TLS 1.2, ECDHE_RSA, AES_128_GCM
Server: 54.237.79.162 Ashburn, United States, ASN14618 (AMAZON-AES, US),
Reverse DNS: ec2-54-237-79-162.compute-1.amazonaws.com
Software: Jetty(9.4.53.v20231009) /
Resource Hash

Request headers

Accept: */*
Access-Control-Request-Headers: content-type
Access-Control-Request-Method: POST
Origin: https://preview.duolingo.com
Sec-Fetch-Mode: cors
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0.0.0 Safari/537.36

Response headers

accept-encoding: gzip, identity
access-control-allow-headers: Content-Type, Access-Control-Allow-Headers, Authorization
access-control-allow-methods: POST, GET, OPTIONS
access-control-allow-origin: *
access-control-max-age: 3600
allow: GET, HEAD, POST, TRACE, OPTIONS
content-length: 0
date: Sat, 29 Jun 2024 20:14:41 GMT
server: Jetty(9.4.53.v20231009)

OPTIONS
H2 200 batch
excess.duolingo.com/ Frame 0
0 289ms
96ms Preflight 54.237.79.162
AMAZON-AES

General

Check archive.org

Show headers Download Go to

Full URL: https://excess.duolingo.com/batch
Protocol: H2
Security: TLS 1.2, ECDHE_RSA, AES_128_GCM
Server: 54.237.79.162 Ashburn, United States, ASN14618 (AMAZON-AES, US),
Reverse DNS: ec2-54-237-79-162.compute-1.amazonaws.com
Software: Jetty(9.4.53.v20231009) /
Resource Hash

Request headers

Accept: */*
Access-Control-Request-Headers: content-type
Access-Control-Request-Method: POST
Origin: https://preview.duolingo.com
Sec-Fetch-Mode: cors
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0.0.0 Safari/537.36

Response headers

accept-encoding: gzip, identity
access-control-allow-headers: Content-Type, Access-Control-Allow-Headers, Authorization
access-control-allow-methods: POST, GET, OPTIONS
access-control-allow-origin: *
access-control-max-age: 3600
allow: GET, HEAD, POST, TRACE, OPTIONS
content-length: 0
date: Sat, 29 Jun 2024 20:14:41 GMT
server: Jetty(9.4.53.v20231009)

GET
H2 200 anchor
www.recaptcha.net/recaptcha/enterprise/ Frame 0F06 0
0 116ms
41ms Document
text/html 2a00:1450:4001:809::2003
GOOGLE

General

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Show headers Download Go to

Full URL

https://www.recaptcha.net/recaptcha/enterprise/anchor?ar=1&k=6LcLOdsjAAAAAFfwGusLLnnn492SOGhsCh-uEAvI&co=aHR0cHM6Ly9wcmV2aWV3LmR1b2xpbmdvLmNvbTo0NDM.&hl=de&v=rKbTvxTxwcw5VqzrtN-ICwWt&size=invisible&cb=sk3kxjmwk5ow

Requested by

Host: www.gstatic.com
URL: https://www.gstatic.com/recaptcha/releases/rKbTvxTxwcw5VqzrtN-ICwWt/recaptcha__de.js

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

2a00:1450:4001:809::2003 Frankfurt am Main, Germany, ASN15169 (GOOGLE, US),

Reverse DNS

Software

GSE /

Resource Hash

Security Headers

Name	Value
Content-Security-Policy	script-src 'report-sample' 'nonce-CzPeDI6MO9hsvZZ4-uEKvg' 'unsafe-inline' 'strict-dynamic' https: http: 'unsafe-eval';object-src 'none';base-uri 'self';report-uri https://csp.withgoogle.com/csp/recaptcha/1
X-Content-Type-Options	nosniff
X-Xss-Protection	1; mode=block

Request headers

Accept-Language: de-DE,de;q=0.9;q=0.9
Referer: https://preview.duolingo.com/
Upgrade-Insecure-Requests: 1
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0.0.0 Safari/537.36
sec-ch-ua: "Google Chrome";v="126", "Not:A-Brand";v="8", "Chromium";v="126"
sec-ch-ua-mobile: ?0
sec-ch-ua-platform: "Win32"

Response headers

alt-svc: h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
cache-control: no-cache, no-store, max-age=0, must-revalidate
content-encoding: gzip
content-security-policy: script-src 'report-sample' 'nonce-CzPeDI6MO9hsvZZ4-uEKvg' 'unsafe-inline' 'strict-dynamic' https: http: 'unsafe-eval';object-src 'none';base-uri 'self';report-uri https://csp.withgoogle.com/csp/recaptcha/1
content-type: text/html; charset=utf-8
cross-origin-embedder-policy: require-corp
cross-origin-resource-policy: cross-origin
date: Sat, 29 Jun 2024 20:14:42 GMT
expires: Mon, 01 Jan 1990 00:00:00 GMT
pragma: no-cache
report-to: {"group":"recaptcha","max_age":2592000,"endpoints":[{"url":"https://csp.withgoogle.com/csp/report-to/recaptcha"}]}
server: GSE
x-content-type-options: nosniff
x-xss-protection: 1; mode=block

GET
H2 200 otBannerSdk.js Show response
cdn.cookielaw.org/scripttemplates/202404.1.0/ 448 KB
109 KB 27ms
27ms Script
application/javascript 2606:4700::6813:b234
CLOUDFLARENET

General

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Full URL

https://cdn.cookielaw.org/scripttemplates/202404.1.0/otBannerSdk.js

Requested by

Host: cdn.cookielaw.org
URL: https://cdn.cookielaw.org/scripttemplates/otSDKStub.js

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

2606:4700::6813:b234 , United States, ASN13335 (CLOUDFLARENET, US),

Reverse DNS

Software

cloudflare /

Resource Hash

49cfbb9c8b20fbaab3a11bcecb48fb8448e617a746fa578baca0dc71a7e06540

Security Headers

Name	Value
Strict-Transport-Security	max-age=31536000; includeSubDomains; preload
X-Content-Type-Options	nosniff

Request headers

sec-ch-ua: "Google Chrome";v="126", "Not:A-Brand";v="8", "Chromium";v="126"
Referer: https://preview.duolingo.com/
Accept-Language: de-DE,de;q=0.9;q=0.9
sec-ch-ua-mobile: ?0
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0.0.0 Safari/537.36
sec-ch-ua-platform: "Win32"

Response headers

x-ms-blob-type: BlockBlob
date: Sat, 29 Jun 2024 20:14:41 GMT
content-encoding: gzip
x-content-type-options: nosniff
cf-cache-status: HIT
content-md5: lAa4newgeifCObgQn9TUrg==
age: 21905
strict-transport-security: max-age=31536000; includeSubDomains; preload
content-length: 111087
x-ms-lease-status: unlocked
last-modified: Tue, 11 Jun 2024 01:45:16 GMT
server: cloudflare
etag: 0x8DC89B824C49CB5
vary: Accept-Encoding
content-type: application/javascript
access-control-allow-origin: *
x-ms-request-id: 3de70c5d-f01e-001e-1d08-bc9b84000000
access-control-expose-headers: x-ms-request-id,Server,x-ms-version,Content-Type,Content-Encoding,Last-Modified,ETag,Content-MD5,x-ms-lease-status,x-ms-blob-type,Content-Length,Date,Transfer-Encoding
cache-control: max-age=86400
x-ms-version: 2009-09-19
accept-ranges: bytes
cf-ray: 89b895983d63361e-FRA

GET
H2 200 de.json Show response
cdn.cookielaw.org/consent/55a7f100-001e-4085-87ec-1a6d522f7d67/e43d2735-b44f-43da-ae8a-a4f881b04152/ 86 KB
22 KB 92ms
92ms Fetch
application/x-javascript 2606:4700::6813:b234
CLOUDFLARENET

General

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Show headers Download Go to

Full URL

https://cdn.cookielaw.org/consent/55a7f100-001e-4085-87ec-1a6d522f7d67/e43d2735-b44f-43da-ae8a-a4f881b04152/de.json

Requested by

Host: cdn.cookielaw.org
URL: https://cdn.cookielaw.org/scripttemplates/202404.1.0/otBannerSdk.js

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

2606:4700::6813:b234 , United States, ASN13335 (CLOUDFLARENET, US),

Reverse DNS

Software

cloudflare /

Resource Hash

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Security Headers

Name	Value
Strict-Transport-Security	max-age=31536000; includeSubDomains; preload
X-Content-Type-Options	nosniff

Request headers

sec-ch-ua: "Google Chrome";v="126", "Not:A-Brand";v="8", "Chromium";v="126"
Referer: https://preview.duolingo.com/
Accept-Language: de-DE,de;q=0.9;q=0.9
sec-ch-ua-mobile: ?0
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0.0.0 Safari/537.36
sec-ch-ua-platform: "Win32"

Response headers

x-ms-blob-type: BlockBlob
date: Sat, 29 Jun 2024 20:14:42 GMT
content-encoding: gzip
x-content-type-options: nosniff
cf-cache-status: REVALIDATED
strict-transport-security: max-age=31536000; includeSubDomains; preload
content-md5: idA/Sl8yxbAugIkmzzHudg==
content-length: 22066
x-ms-lease-status: unlocked
last-modified: Thu, 25 Apr 2024 15:36:13 GMT
server: cloudflare
etag: 0x8DC653D7081EF34
vary: Accept-Encoding
content-type: application/x-javascript
access-control-allow-origin: *
x-ms-request-id: 8c410974-301e-0021-6d3f-ac2c58000000
access-control-expose-headers: x-ms-request-id,Server,x-ms-version,Content-Type,Content-Encoding,Cache-Control,Last-Modified,ETag,Content-MD5,x-ms-lease-status,x-ms-blob-type,Content-Length,Date,Transfer-Encoding
cache-control: public, max-age=86400
x-ms-version: 2009-09-19
accept-ranges: bytes
cf-ray: 89b8959b5d3b3a9c-FRA
expires: Sun, 30 Jun 2024 20:14:42 GMT

GET
H2 200 style
accounts.google.com/gsi/ 533 B
608 B 28ms
27ms Stylesheet
text/css 2a00:1450:400c:c0a::54
GOOGLE

General

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Show headers Download Go to

Full URL

https://accounts.google.com/gsi/style

Requested by

Host: accounts.google.com
URL: https://accounts.google.com/gsi/client

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

2a00:1450:400c:c0a::54 Brussels, Belgium, ASN15169 (GOOGLE, US),

Reverse DNS

Software

ESF /

Resource Hash

1c4e7e389d73c6acf7f19cc812514e71230740791fde8a018c1d7edccf1590ae

Security Headers

Name	Value
Content-Security-Policy	require-trusted-types-for 'script';report-uri https://csp.withgoogle.com/csp/identity-sign-in-google-http, script-src 'report-sample' 'nonce-19fP23XwMWuqjR2bbXtBvw' 'unsafe-inline' 'strict-dynamic' https: http: 'unsafe-eval';object-src 'none';base-uri 'self';report-uri https://csp.withgoogle.com/csp/identity-sign-in-google-http
X-Content-Type-Options	nosniff
X-Frame-Options	SAMEORIGIN
X-Xss-Protection	0

Request headers

sec-ch-ua: "Google Chrome";v="126", "Not:A-Brand";v="8", "Chromium";v="126"
Referer: https://preview.duolingo.com/
Accept-Language: de-DE,de;q=0.9;q=0.9
sec-ch-ua-mobile: ?0
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0.0.0 Safari/537.36
sec-ch-ua-platform: "Win32"

Response headers

date: Sat, 29 Jun 2024 20:14:42 GMT
content-security-policy: require-trusted-types-for 'script';report-uri https://csp.withgoogle.com/csp/identity-sign-in-google-http, script-src 'report-sample' 'nonce-19fP23XwMWuqjR2bbXtBvw' 'unsafe-inline' 'strict-dynamic' https: http: 'unsafe-eval';object-src 'none';base-uri 'self';report-uri https://csp.withgoogle.com/csp/identity-sign-in-google-http
content-encoding: gzip
x-content-type-options: nosniff
server: ESF
x-frame-options: SAMEORIGIN
report-to: {"group":"coop_dd7de8473bddc59c6b748810a67a39b1","max_age":2592000,"endpoints":[{"url":"https://csp.withgoogle.com/csp/report-to/dd7de8473bddc59c6b748810a67a39b1"}]}
content-type: text/css; charset=utf-8
cache-control: private, max-age=86400
cross-origin-resource-policy: cross-origin
alt-svc: h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
x-xss-protection: 0
cross-origin-opener-policy-report-only: same-origin; report-to="coop_dd7de8473bddc59c6b748810a67a39b1"
expires: Sat, 29 Jun 2024 20:14:42 GMT

GET
H2 200 favicon.ico
d35aaqx5ub95lt.cloudfront.net/ 15 KB
4 KB 8ms
8ms Other
image/vnd.microsoft.icon 2600:9000:21f3:8400:7:60cd:e840:21
AMAZON-02

General

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Full URL: https://d35aaqx5ub95lt.cloudfront.net/favicon.ico
Protocol: H2
Security: TLS 1.3, , AES_128_GCM
Server: 2600:9000:21f3:8400:7:60cd:e840:21 , United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software: AmazonS3 /
Resource Hash: 587ed3e3a94f04264f02bf6e21798c8ca32de7b7f22d30cfc667224741c4a3c2

Request headers

sec-ch-ua: "Google Chrome";v="126", "Not:A-Brand";v="8", "Chromium";v="126"
Referer: https://preview.duolingo.com/
Accept-Language: de-DE,de;q=0.9;q=0.9
sec-ch-ua-mobile: ?0
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0.0.0 Safari/537.36
sec-ch-ua-platform: "Win32"

Response headers

date: Sun, 07 Jan 2024 11:46:57 GMT
content-encoding: gzip
via: 1.1 03d509e8374e9f42668961b5e0201348.cloudfront.net (CloudFront)
last-modified: Fri, 05 Jan 2024 20:56:28 GMT
server: AmazonS3
x-amz-cf-pop: FRA2-C2
age: 15064066
etag: "80b0487df87a85d16882eb991ce89431"
x-amz-server-side-encryption: AES256
x-cache: Hit from cloudfront
content-type: image/vnd.microsoft.icon
cache-control: max-age=315360000
accept-ranges: bytes
content-length: 3407
x-amz-cf-id: JD_pOcyihckDKE5UnDjTAsAmLCvG1rwWhukZH23FQkUBY8BM5CErVQ==

GET
H2 200 otFlat.json Show response
cdn.cookielaw.org/scripttemplates/202404.1.0/assets/ 13 KB
3 KB 33ms
32ms Fetch
application/json 2606:4700::6813:b234
CLOUDFLARENET

General

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Full URL

https://cdn.cookielaw.org/scripttemplates/202404.1.0/assets/otFlat.json

Requested by

Host: cdn.cookielaw.org
URL: https://cdn.cookielaw.org/scripttemplates/202404.1.0/otBannerSdk.js

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

2606:4700::6813:b234 , United States, ASN13335 (CLOUDFLARENET, US),

Reverse DNS

Software

cloudflare /

Resource Hash

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Security Headers

Name	Value
Strict-Transport-Security	max-age=31536000; includeSubDomains; preload
X-Content-Type-Options	nosniff

Request headers

sec-ch-ua: "Google Chrome";v="126", "Not:A-Brand";v="8", "Chromium";v="126"
Referer: https://preview.duolingo.com/
Accept-Language: de-DE,de;q=0.9;q=0.9
sec-ch-ua-mobile: ?0
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0.0.0 Safari/537.36
sec-ch-ua-platform: "Win32"

Response headers

x-ms-blob-type: BlockBlob
date: Sat, 29 Jun 2024 20:14:42 GMT
content-encoding: gzip
x-content-type-options: nosniff
cf-cache-status: HIT
content-md5: CeHoS/yftP1uT8S/ram0PA==
age: 61655
strict-transport-security: max-age=31536000; includeSubDomains; preload
content-length: 3041
x-ms-lease-status: unlocked
last-modified: Tue, 11 Jun 2024 01:45:09 GMT
server: cloudflare
etag: 0x8DC89B82072D3A9
vary: Accept-Encoding
content-type: application/json
access-control-allow-origin: *
x-ms-request-id: 8028e253-701e-0026-2e53-bcdadd000000
access-control-expose-headers: x-ms-request-id,Server,x-ms-version,Content-Type,Content-Encoding,Last-Modified,ETag,Content-MD5,x-ms-lease-status,x-ms-blob-type,Content-Length,Date,Transfer-Encoding
cache-control: max-age=86400
x-ms-version: 2009-09-19
accept-ranges: bytes
cf-ray: 89b8959c1e3d3a9c-FRA

GET
H2 200 otCommonStyles.css Show response
cdn.cookielaw.org/scripttemplates/202404.1.0/assets/ 24 KB
4 KB 37ms
37ms Fetch
text/css 2606:4700::6813:b234
CLOUDFLARENET

General

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Show headers Download Go to

Full URL

https://cdn.cookielaw.org/scripttemplates/202404.1.0/assets/otCommonStyles.css

Requested by

Host: cdn.cookielaw.org
URL: https://cdn.cookielaw.org/scripttemplates/202404.1.0/otBannerSdk.js

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

2606:4700::6813:b234 , United States, ASN13335 (CLOUDFLARENET, US),

Reverse DNS

Software

cloudflare /

Resource Hash

06c0edbfc1b871fb45195265f5faad3e23191305f6ff2125557a9fbc287c8992

Security Headers

Name	Value
Strict-Transport-Security	max-age=31536000; includeSubDomains; preload
X-Content-Type-Options	nosniff

Request headers

sec-ch-ua: "Google Chrome";v="126", "Not:A-Brand";v="8", "Chromium";v="126"
Referer: https://preview.duolingo.com/
Accept-Language: de-DE,de;q=0.9;q=0.9
sec-ch-ua-mobile: ?0
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0.0.0 Safari/537.36
sec-ch-ua-platform: "Win32"

Response headers

x-ms-blob-type: BlockBlob
date: Sat, 29 Jun 2024 20:14:42 GMT
strict-transport-security: max-age=31536000; includeSubDomains; preload
x-content-type-options: nosniff
cf-cache-status: HIT
content-encoding: gzip
content-md5: 4ErYmXXFNbMLrnc9DrDTsg==
age: 1269
x-ms-lease-status: unlocked
last-modified: Tue, 11 Jun 2024 01:45:22 GMT
server: cloudflare
vary: Accept-Encoding
content-type: text/css
access-control-allow-origin: *
x-ms-request-id: abb7dc3e-401e-008f-1f32-bc0f35000000
access-control-expose-headers: x-ms-request-id,Server,x-ms-version,Content-Type,Last-Modified,ETag,Content-MD5,x-ms-lease-status,x-ms-blob-type,Content-Length,Date,Transfer-Encoding
cache-control: max-age=86400
x-ms-version: 2009-09-19
cf-ray: 89b8959c1e3f3a9c-FRA

POST
H2 200 batch Show response
excess.duolingo.com/ 34 B
311 B 112ms
112ms XHR
text/plain 54.237.79.162
AMAZON-AES

General

Check archive.org

Show headers Download Go to

Full URL: https://excess.duolingo.com/batch
Requested by: Host: d35aaqx5ub95lt.cloudfront.net
URL: https://d35aaqx5ub95lt.cloudfront.net/js/663-5ea7c925.js
Protocol: H2
Security: TLS 1.2, ECDHE_RSA, AES_128_GCM
Server: 54.237.79.162 Ashburn, United States, ASN14618 (AMAZON-AES, US),
Reverse DNS: ec2-54-237-79-162.compute-1.amazonaws.com
Software: Jetty(9.4.53.v20231009) /
Resource Hash: 26503ab2f8fd7184b8f272f63557e8d0b61c9d3cb6ee042e37a4e541dc2eb615

Request headers

sec-ch-ua: "Google Chrome";v="126", "Not:A-Brand";v="8", "Chromium";v="126"
sec-ch-ua-platform: "Win32"
Referer: https://preview.duolingo.com/
Accept-Language: de-DE,de;q=0.9;q=0.9
sec-ch-ua-mobile: ?0
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0.0.0 Safari/537.36
Content-type: application/json

Response headers

date: Sat, 29 Jun 2024 20:14:42 GMT
accept-encoding: gzip, identity
server: Jetty(9.4.53.v20231009)
access-control-max-age: 3600
access-control-allow-methods: POST, GET, OPTIONS
content-type: text/plain;charset=iso-8859-1
access-control-allow-origin: *
access-control-allow-headers: Content-Type, Access-Control-Allow-Headers, Authorization
content-length: 34

Verdicts & Comments Add Verdict or Comment

52 JavaScript Global Variables

These are the non-standard "global" variables defined on the window object. These can be helpful in identifying possible client-side frameworks and code.

12 Cookies

Cookies are little pieces of information stored in the browser of a user. Whenever a user visits the site again, he will also send his cookie values, thus allowing the website to re-identify him even if he changed locations. This is how permanent logins work.

Domain/Path	Expires	Name / Value
.duolingo.com/	1970-01-21 06:27:08	Name: logged_out_uuid Value: b2592e78-19fb-40df-b92c-14b807948c94
.duolingo.com/	1970-01-21 06:27:08	Name: lang Value: de
.duolingo.com/	1970-01-20 23:51:08	Name: duocsexp3 Value: course_splash_redesign~control~
preview.duolingo.com/	1969-12-31 23:59:59	Name: wuuid Value: 85c118b7-19ff-4f85-9124-68764b48e80c
.duolingo.com/	1970-01-21 06:27:08	Name: tsl Value: 1719692081464
.duolingo.com/	1970-01-21 06:27:08	Name: lu Value: https://preview.duolingo.com/
.duolingo.com/	1970-01-21 06:27:08	Name: initial_referrer Value: $direct
.duolingo.com/	1970-01-21 06:27:08	Name: lr Value:
.duolingo.com/	1970-01-21 06:27:08	Name: lp Value: splash
preview.duolingo.com/	1970-01-20 21:51:36	Name: AWSALB Value: 6j8fsVUVKI3p8dwEA6CX6vv3NvGfMBJkZCV6iyAwBEuO2D3RyvB2Id0AVDB8tGYJHYOferX5/5/VmK0s445WkDnYOtczFiAalcp7e5jVndI3g850DJG8dD6F0RI1
preview.duolingo.com/	1970-01-20 21:51:36	Name: AWSALBCORS Value: 6j8fsVUVKI3p8dwEA6CX6vv3NvGfMBJkZCV6iyAwBEuO2D3RyvB2Id0AVDB8tGYJHYOferX5/5/VmK0s445WkDnYOtczFiAalcp7e5jVndI3g850DJG8dD6F0RI1
.duolingo.com/	1970-01-21 02:00:44	Name: OptanonConsent Value: isGpcEnabled=0&datestamp=Sat+Jun+29+2024+22%3A14%3A42+GMT%2B0200+(Mitteleurop%C3%A4ische+Sommerzeit)&version=202404.1.0&browserGpcFlag=0&isIABGlobal=false&hosts=&consentId=c0cf3b84-42c5-4958-8276-8b57f18cedd6&interactionCount=0&isAnonUser=1&landingPath=https%3A%2F%2Fpreview.duolingo.com%2F&groups=C0001%3A1%2CC0002%3A0%2CC0003%3A0%2CC0004%3A0

2 Console Messages

A page may trigger messages to the console to be logged. These are often error messages about being unable to load a resource or execute a piece of JavaScript. Sometimes they also provide insight into the technology behind a website.

Source	Level	URL Text
network	error	URL: https://brb.duolingo.com/0/web.json?user=0&ts=1719692081&tzoffset=2 Message: Failed to load resource: the server responded with a status of 404 ()
network	error	URL: https://zombie.duolingo.com/0/web.json?user=0&ts=1719692081&tzoffset=2 Message: Failed to load resource: the server responded with a status of 404 ()

Security Headers

This page lists any security headers set by the main page. If you want to understand what these mean and how to use them, head on over to this page

Header	Value
X-Frame-Options	SAMEORIGIN

Indicators

This is a term in the security industry to describe indicators such as IPs, Domains, Hashes, etc. This does not imply that any of these indicate malicious activity.

accounts.google.com
brb.duolingo.com
cdn.cookielaw.org
d35aaqx5ub95lt.cloudfront.net
excess.duolingo.com
geolocation.onetrust.com
preview.duolingo.com
www.googletagmanager.com
www.gstatic.com
www.recaptcha.net
zombie.duolingo.com
18.173.205.12
18.245.31.39
2600:9000:21f3:8400:7:60cd:e840:21
2606:4700:4400::6812:2089
2606:4700::6813:b234
2a00:1450:4001:809::2003
2a00:1450:4001:827::2008
2a00:1450:4001:82a::2003
2a00:1450:400c:c0a::54
44.220.104.173
54.237.79.162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746f2168da19bc4f53513de11c27b0b78f4c2f382b570d6543650f33f4a481eb
7b9f5e5f79be77c1e4393e266c5a450fdcd9e2ed419e15bb09f1d013337757fd
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88b72df5bada6a48882842929a9c9a6092e58ed9af8f75ab5a3a05f127c2c0c7
8d12eb2092c5d4aefe06344d2e62b63747102a6185304fe230fc3f3a5faf90ed
8e456ed304277c149e67d1ce56dbefa4b45d9453be14882f98c04e0c93e1d477
9179ef7271b73ff2bda6115717edd59c35b5516a59e75a84b80210f05657cdec
91be8fcfa3366a08bf1075e07281aee2baf35654087f1aa826b22e919371fd5b
93b43a8b1aef9997332348cf061c6067f1fa65a60e293b0111266cadd70f7b35
93c5c3493cba58e32c64653ee9603696590321a88b9415eb233b916794f000c4
944ac61b0f78bf5f329d680e56e785f0ff0a8a2386cb9df9abb5a219c8dd1855
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994f513ef39ee0a8841211ed866b4b9a57cec055a186816e7bfba9c47b867971
9a0b363a76e5a981e63527fc99459d3976a2b8cb662fc6f88fd27d9373936c2b
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ad1879ec1ed81d3fca0327472939b6e05ea94b6e43f2a2f572cedada698b8b6e
ad3e407badca8dcf0c3e348b4fe4eeb9c8aad27ef85737ed55f608db291d4827
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cfff8569bb27bee3dcbccaba435f5f8eb724b8052d64ab2d89c5c31f172813c8
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d3ee0015eb3c75c5626bf81481a6b71f28bc2767f61950374c838501b494cdfa
df900778f0a73330b514d16c4e12bfcf19242c206bf42101c6a4eeb7079a1c0a
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e9433f83f20500145850d5aabddced402dcfc94e310072e9a3f545df0bdb9f96
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eae4bc842223c87469c8f862708c48d30a7008e62734e34d76e5b1e3529b78a4
eb9123ef69899f7d53e29cb85e0de44f09094e0b7ef55440c3fa5481eb933604
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f604cfdff29ce793536537e6749264f3f836820167e522db04b29f5953ae439a
f6653fb61cca10c3f038715db434435b1edf7aed3338d38ed73855ac9813924c
fa5d53cd90e77b14ec0aed24afb6d528fdf61005f2f5fb6454f38db69095a976
fe1cc36a94edd5324d76b74e268c3fcba243d190ac50a85e41691b99d35a0fd2

preview.duolingo.com Open in urlscan Pro 44.220.104.173 Public Scan

Summary

urlscan.io Verdict: No classification

Domain & IP information

Screenshot Live screenshot Full Image

Page Title

Page URL History Show full URLs

Detected technologies

Page Statistics

95 Requests

100 %HTTPS

64 %IPv6

8 Domains

11 Subdomains

12 IPs

3 Countries

2590 kBTransfer

12031 kBSize

12 Cookies

48 Outgoing links

Page URL History

Redirected requests

95 HTTP transactions Everything HTML Script AJAX CSS Image Expand all 1 data transactions

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preview.duolingo.com Open in urlscan Pro
44.220.104.173 Public Scan

Screenshot
Live screenshot

Full Image

95
Requests

100 %
HTTPS

64 %
IPv6

8
Domains

11
Subdomains

12
IPs

3
Countries

2590 kB
Transfer

12031 kB
Size

12
Cookies

95 HTTP transactions
1 data transactions