www.duolingo.com Open in urlscan Pro
54.89.23.229 Public Scan

Go To Rescan
Add Verdict Report

Submitted URL:
https://www.duolingo.com/
Effective URL:
https://www.duolingo.com/
Submission: On February 17 via api (February 17th 2021, 2:19:59 am UTC) from US

Summary HTTP 84 Redirects Links 41 Behaviour Indicators

Summary

This website contacted 20 IPs in 4 countries across 16 domains to perform 84 HTTP transactions. The main IP is 54.89.23.229, located in Ashburn, United States and belongs to AMAZON-AES, US. The main domain is www.duolingo.com.
TLS certificate: Issued by Go Daddy Secure Certificate Authority... on November 19th 2020. Valid for: a year.

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

urlscan.io Verdict: No classification

Domain & IP information

	IP Address	AS Autonomous System
6	54.89.23.229 54.89.23.229	14618 (AMAZON-AES) (AMAZON-AES)
37	2600:9000:206... 2600:9000:206f:b400:7:60cd:e840:21	16509 (AMAZON-02) (AMAZON-02)
12	34.203.85.216 34.203.85.216	14618 (AMAZON-AES) (AMAZON-AES)
1	2a00:1450:400... 2a00:1450:4001:80f::2008	15169 (GOOGLE) (GOOGLE)
1	35.201.112.186 35.201.112.186	15169 (GOOGLE) (GOOGLE)
1	151.101.114.110 151.101.114.110	54113 (FASTLY) (FASTLY)
2	35.186.220.184 35.186.220.184	15169 (GOOGLE) (GOOGLE)
2	2a00:1450:400... 2a00:1450:4001:827::200e	15169 (GOOGLE) (GOOGLE)
1 3	172.217.18.102 172.217.18.102	15169 (GOOGLE) (GOOGLE)
4	2a03:2880:f01... 2a03:2880:f01c:8012:face:b00c:0:3	32934 (FACEBOOK) (FACEBOOK)
2	34.240.141.66 34.240.141.66	16509 (AMAZON-02) (AMAZON-02)
1	2a00:1450:400... 2a00:1450:400c:c1b::9c	15169 (GOOGLE) (GOOGLE)
1	2a00:1450:400... 2a00:1450:4001:82b::2004	15169 (GOOGLE) (GOOGLE)
1	2a00:1450:400... 2a00:1450:4001:80f::2003	15169 (GOOGLE) (GOOGLE)
1 2	2a00:1450:400... 2a00:1450:4001:80f::2002	15169 (GOOGLE) (GOOGLE)
3	2a03:2880:f11... 2a03:2880:f11c:8183:face:b00c:0:25de	32934 (FACEBOOK) (FACEBOOK)
1	52.51.124.53 52.51.124.53	16509 (AMAZON-02) (AMAZON-02)
2	2a02:26f0:710... 2a02:26f0:7100:1a7::1931	20940 (AKAMAI-ASN1) (AKAMAI-ASN1)
3	104.75.88.209 104.75.88.209	16625 (AKAMAI-AS) (AKAMAI-AS)
84	20

6 54.89.23.229 (Ashburn, United States)

ASN14618 (AMAZON-AES, US)
PTR: ec2-54-89-23-229.compute-1.amazonaws.com

www.duolingo.com	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools
stories.duolingo.com	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

37 2600:9000:206f:b400:7:60cd:e840:21 (United States)

ASN16509 (AMAZON-02, US)

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

12 34.203.85.216 (United States)

ASN14618 (AMAZON-AES, US)
PTR: ec2-34-203-85-216.compute-1.amazonaws.com

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

1 2a00:1450:4001:80f::2008 (Frankfurt am Main, Germany)

ASN15169 (GOOGLE, US)

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

1 35.201.112.186 (Kansas City, United States)

ASN15169 (GOOGLE, US)
PTR: 186.112.201.35.bc.googleusercontent.com

edge.fullstory.com	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

1 151.101.114.110 (Frankfurt am Main, Germany)

ASN54113 (FASTLY, US)

client.perimeterx.net	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

2 35.186.220.184 (Kansas City, United States)

ASN15169 (GOOGLE, US)
PTR: 184.220.186.35.bc.googleusercontent.com

collector-pxasqjfz9w.px-cloud.net	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

2 2a00:1450:4001:827::200e (Frankfurt am Main, Germany)

ASN15169 (GOOGLE, US)

www.google-analytics.com	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

3 172.217.18.102 (United States) 1 redirects

ASN15169 (GOOGLE, US)
PTR: fra16s42-in-f6.1e100.net

9814127.fls.doubleclick.net	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

4 2a03:2880:f01c:8012:face:b00c:0:3 (United States)

ASN32934 (FACEBOOK, US)

connect.facebook.net	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

2 34.240.141.66 (Dublin, Ireland)

ASN16509 (AMAZON-02, US)
PTR: ec2-34-240-141-66.eu-west-1.compute.amazonaws.com

c0.adalyser.com	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

1 2a00:1450:400c:c1b::9c (Brussels, Belgium)

ASN15169 (GOOGLE, US)

stats.g.doubleclick.net	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

1 2a00:1450:4001:82b::2004 (Frankfurt am Main, Germany)

ASN15169 (GOOGLE, US)

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

1 2a00:1450:4001:80f::2003 (Frankfurt am Main, Germany)

ASN15169 (GOOGLE, US)

www.google.de	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

2 2a00:1450:4001:80f::2002 (Frankfurt am Main, Germany) 1 redirects

ASN15169 (GOOGLE, US)

adservice.google.com	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools
adservice.google.de	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

3 2a03:2880:f11c:8183:face:b00c:0:25de (United States)

ASN32934 (FACEBOOK, US)

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

1 52.51.124.53 (Dublin, Ireland)

ASN16509 (AMAZON-02, US)
PTR: ec2-52-51-124-53.eu-west-1.compute.amazonaws.com

insight.adsrvr.org	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

2 2a02:26f0:7100:1a7::1931 (Frankfurt am Main, Germany)

ASN20940 (AKAMAI-ASN1, NL)

s.pinimg.com	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

3 104.75.88.209 (Frankfurt am Main, Germany)

ASN16625 (AKAMAI-AS, US)
PTR: a104-75-88-209.deploy.static.akamaitechnologies.com

ct.pinterest.com	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

	Apex Domain Subdomains	Transfer
37	cloudfront.net d35aaqx5ub95lt.cloudfront.net	667 KB
18	duolingo.com www.duolingo.com excess.duolingo.com stories.duolingo.com	17 KB
4	facebook.net connect.facebook.net	187 KB
4	doubleclick.net 1 redirects 9814127.fls.doubleclick.net stats.g.doubleclick.net	3 KB
3	pinterest.com ct.pinterest.com	1 KB
3	facebook.com www.facebook.com	657 B
2	pinimg.com s.pinimg.com	18 KB
2	google.de 1 redirects www.google.de adservice.google.de	317 B
2	google.com www.google.com adservice.google.com	1 KB
2	adalyser.com c0.adalyser.com	13 KB
2	google-analytics.com www.google-analytics.com	19 KB
2	px-cloud.net collector-pxasqjfz9w.px-cloud.net	1 KB
1	adsrvr.org insight.adsrvr.org	261 B
1	perimeterx.net client.perimeterx.net	30 KB
1	fullstory.com edge.fullstory.com	61 KB
1	googletagmanager.com www.googletagmanager.com	37 KB
84	16

	Domain	Requested by
37	d35aaqx5ub95lt.cloudfront.net	www.duolingo.com d35aaqx5ub95lt.cloudfront.net
12	excess.duolingo.com	d35aaqx5ub95lt.cloudfront.net
4	connect.facebook.net	www.duolingo.com connect.facebook.net 9814127.fls.doubleclick.net
4	www.duolingo.com	d35aaqx5ub95lt.cloudfront.net
3	ct.pinterest.com	s.pinimg.com 9814127.fls.doubleclick.net
3	www.facebook.com	9814127.fls.doubleclick.net
3	9814127.fls.doubleclick.net	1 redirects www.googletagmanager.com adservice.google.com
2	s.pinimg.com	9814127.fls.doubleclick.net s.pinimg.com
2	c0.adalyser.com	www.duolingo.com
2	www.google-analytics.com	www.googletagmanager.com d35aaqx5ub95lt.cloudfront.net
2	collector-pxasqjfz9w.px-cloud.net	d35aaqx5ub95lt.cloudfront.net
2	stories.duolingo.com	d35aaqx5ub95lt.cloudfront.net
1	insight.adsrvr.org	9814127.fls.doubleclick.net
1	adservice.google.de	1 redirects
1	adservice.google.com	9814127.fls.doubleclick.net
1	www.google.de
1	www.google.com
1	stats.g.doubleclick.net	d35aaqx5ub95lt.cloudfront.net
1	client.perimeterx.net	d35aaqx5ub95lt.cloudfront.net
1	edge.fullstory.com	d35aaqx5ub95lt.cloudfront.net
1	www.googletagmanager.com	d35aaqx5ub95lt.cloudfront.net
84	21

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

Domain
af4a.adj.st
schools.duolingo.com
englishtest.duolingo.com
research.duolingo.com
incubator.duolingo.com
design.duolingo.com
podcast.duolingo.com
apps.apple.com
forum.duolingo.com
status.duolingo.com
blog.duolingo.com
www.facebook.com
twitter.com
www.youtube.com
ar.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
th.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	`2020-11-19` - `2021-12-21`	a year	crt.sh
*.cloudfront.net DigiCert Global CA G2	`2020-05-26` - `2021-04-21`	a year	crt.sh
*.google-analytics.com GTS CA 1O1	`2021-01-26` - `2021-04-20`	3 months	crt.sh
edge.fullstory.com GTS CA 1D2	`2020-12-26` - `2021-03-26`	3 months	crt.sh
f4.shared.global.fastly.net GlobalSign CloudSSL CA - SHA256 - G3	`2020-12-28` - `2021-05-07`	4 months	crt.sh
*.px-cloud.net Sectigo RSA Domain Validation Secure Server CA	`2020-09-24` - `2021-09-21`	a year	crt.sh
*.doubleclick.net GTS CA 1O1	`2021-01-19` - `2021-04-13`	3 months	crt.sh
*.facebook.com DigiCert SHA2 High Assurance Server CA	`2021-02-10` - `2021-05-10`	3 months	crt.sh
*.adalyser.com Thawte RSA CA 2018	`2019-06-04` - `2021-07-07`	2 years	crt.sh
*.g.doubleclick.net GTS CA 1O1	`2021-01-19` - `2021-04-13`	3 months	crt.sh
www.google.com GTS CA 1O1	`2021-01-19` - `2021-04-13`	3 months	crt.sh
www.google.de GTS CA 1O1	`2021-01-26` - `2021-04-20`	3 months	crt.sh
*.google.com GTS CA 1O1	`2021-01-19` - `2021-04-13`	3 months	crt.sh
*.adsrvr.org Trustwave Organization Validation SHA256 CA, Level 1	`2019-03-07` - `2021-04-19`	2 years	crt.sh
*.pinterest.com DigiCert SHA2 High Assurance Server CA	`2020-07-16` - `2021-08-04`	a year	crt.sh

This page contains 4 frames:

Primary Page: https://www.duolingo.com/
Frame ID: CE0C268C71530591BA22BDFE486AA330
Requests: 63 HTTP requests in this frame

Frame: https://9814127.fls.doubleclick.net/activityi;dc_pre=CLTomM_t7-4CFVIXGwodOCADlw;src=9814127;type=hv3;cat=allpa0;ord=5267881750761;gtm=2wg230;auiddc=1528141672.1613528379;~oref=https%3A%2F%2Fwww.duolingo.com%2F
Frame ID: ADC429A5F89DB3208ADA984912688C23
Requests: 1 HTTP requests in this frame

Frame: https://adservice.google.com/ddm/fls/i/dc_pre=CLTomM_t7-4CFVIXGwodOCADlw;src=9814127;type=hv3;cat=allpa0;ord=5267881750761;gtm=2wg230;auiddc=1528141672.1613528379;~oref=https%3A%2F%2Fwww.duolingo.com%2F
Frame ID: 9A38EF3AC2F642463C715012836D2B93
Requests: 1 HTTP requests in this frame

Frame: https://9814127.fls.doubleclick.net/ddm/fls/r/dc_pre=CLTomM_t7-4CFVIXGwodOCADlw;src=9814127;type=hv3;cat=allpa0;ord=5267881750761;gtm=2wg230;auiddc=1528141672.1613528379;~oref=https%3A%2F%2Fwww.duolingo.com%2F
Frame ID: 4C28FFD7A535CE6416947326CDC11F71
Requests: 11 HTTP requests in this frame

Screenshot
Live screenshot

Full Image

Detected technologies

React (JavaScript Frameworks) Expand

Overall confidence: 100%
Detected patterns

html /<[^>]+data-react/i

Google Tag Manager (Tag Managers) Expand

Overall confidence: 100%
Detected patterns

html /googletagmanager\.com\/ns\.html[^>]+><\/iframe>/i

Page Statistics

84
Requests

99 %
HTTPS

53 %
IPv6

16
Domains

21
Subdomains

20
IPs

4
Countries

1055 kB
Transfer

3496 kB
Size

10
Cookies

41 Outgoing links

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

URL: https://af4a.adj.st/?adjust_t=mfg8p8a&adjust_label=splash_page
Title: badge-app-storeDownload on theApp Store

Search URL Search Domain Scan URL

URL: https://schools.duolingo.com/
Title: Bring Duolingo to your classroom

Search URL Search Domain Scan URL

URL: https://englishtest.duolingo.com/
Title: Certify Your English Proficiency

Search URL Search Domain Scan URL

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

Search URL Search Domain Scan URL

URL: https://incubator.duolingo.com/
Title: Incubator

Search URL Search Domain Scan URL

URL: https://design.duolingo.com/
Title: Brand Guidelines

Search URL Search Domain Scan URL

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

Search URL Search Domain Scan URL

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

Search URL Search Domain Scan URL

URL: https://af4a.adj.st/?adjust_t=mfg8p8a&adjust_label=site_map
Title: Duolingo for Android

Search URL Search Domain Scan URL

URL: https://apps.apple.com/app/duolingo-abc-learn-to-read/id1440502568?pt=1374442&ct=Site%20map&mt=8
Title: Duolingo ABC (iOS)

Search URL Search Domain Scan URL

URL: https://forum.duolingo.com/
Title: Discussion

Search URL Search Domain Scan URL

URL: https://schools.duolingo.com/help
Title: Schools FAQs

Search URL Search Domain Scan URL

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

Search URL Search Domain Scan URL

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

Search URL Search Domain Scan URL

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

Search URL Search Domain Scan URL

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

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

Redirected requests

There were HTTP redirect chains for the following requests:

Request Chain 59

https://9814127.fls.doubleclick.net/activityi;src=9814127;type=hv3;cat=allpa0;ord=5267881750761;gtm=2wg230;auiddc=1528141672.1613528379;~oref=https%3A%2F%2Fwww.duolingo.com%2F HTTP 302
https://9814127.fls.doubleclick.net/activityi;dc_pre=CLTomM_t7-4CFVIXGwodOCADlw;src=9814127;type=hv3;cat=allpa0;ord=5267881750761;gtm=2wg230;auiddc=1528141672.1613528379;~oref=https%3A%2F%2Fwww.duolingo.com%2F

Request Chain 69

https://adservice.google.de/ddm/fls/i/dc_pre=CLTomM_t7-4CFVIXGwodOCADlw;src=9814127;type=hv3;cat=allpa0;ord=5267881750761;gtm=2wg230;auiddc=1528141672.1613528379;~oref=https%3A%2F%2Fwww.duolingo.com%2F HTTP 302
https://9814127.fls.doubleclick.net/ddm/fls/r/dc_pre=CLTomM_t7-4CFVIXGwodOCADlw;src=9814127;type=hv3;cat=allpa0;ord=5267881750761;gtm=2wg230;auiddc=1528141672.1613528379;~oref=https%3A%2F%2Fwww.duolingo.com%2F

84 HTTP transactions
0 data transactions

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

GET
H2 200 Primary Request / Show response
www.duolingo.com/ 17 KB
7 KB 334ms
125ms Document
text/html 54.89.23.229
AMAZON-AES

General

Check archive.org

Show headers Download Go to

Full URL

https://www.duolingo.com/

Protocol

Security

TLS 1.2, ECDHE_RSA, AES_128_GCM

Server

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

Reverse DNS

ec2-54-89-23-229.compute-1.amazonaws.com

Software

duo-api /

Resource Hash

e07197cb8e999e21b2e91fe4124a44868d2f04cc82b0c1aa8a5075e29f9b6f7d

Security Headers

Name	Value
X-Frame-Options	SAMEORIGIN

Request headers

:method: GET
:authority: www.duolingo.com
:scheme: https
:path: /
pragma: no-cache
cache-control: no-cache
upgrade-insecure-requests: 1
user-agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.61 Safari/537.36
accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9
sec-fetch-site: none
sec-fetch-mode: navigate
sec-fetch-user: ?1
sec-fetch-dest: document
accept-encoding: gzip, deflate, br
accept-language: en-US
Upgrade-Insecure-Requests: 1
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.61 Safari/537.36

Response headers

date: Wed, 17 Feb 2021 02:19:38 GMT
content-type: text/html; charset=UTF-8
set-cookie: AWSALB=73moSjB46onGh3Set2gloB7Ar4xh5HlDKGFz9q/TZZNx2oR0OwZvaSGi9UYNqjs5n1m+POCGpHIoZCgzJMWIIy1YVkrvQDv5tW62SO4YeueUdpRbVKSpz7+kaVsY; Expires=Wed, 24 Feb 2021 02:19:38 GMT; Path=/ AWSALBCORS=73moSjB46onGh3Set2gloB7Ar4xh5HlDKGFz9q/TZZNx2oR0OwZvaSGi9UYNqjs5n1m+POCGpHIoZCgzJMWIIy1YVkrvQDv5tW62SO4YeueUdpRbVKSpz7+kaVsY; Expires=Wed, 24 Feb 2021 02:19:38 GMT; Path=/; SameSite=None; Secure logged_out_uuid=15c0f939-b4c1-4ab8-96d5-8d5b03368f0b; Domain=.duolingo.com; Max-Age=31536000; Path=/; expires=Thu, 17-Feb-2022 02:19:38 GMT lang=en; Domain=.duolingo.com; Max-Age=31536000; Path=/; expires=Thu, 17-Feb-2022 02:19:38 GMT wuuid=8b3a9d9e-4be1-45a4-830e-13797b600560
server: duo-api
no-retry: 1
surrogate-control: no-store
expires: 0
pragma: no-cache
cache-control: no-store, no-cache, must-revalidate, proxy-revalidate
x-frame-options: SAMEORIGIN
x-tid: ffff2385602c7cbc0140
x-ws: UK
x-runtime: 0.02033
x-ipcountry: US
content-encoding: gzip
x-envoy-upstream-service-time: 22
x-duo-request-host: www.duolingo.com

GET
H2 200 app-f8086872.css
d35aaqx5ub95lt.cloudfront.net/css/ 99 KB
22 KB 38ms
7ms Stylesheet
text/css 2600:9000:206f:b400:7:60cd:e840:21
AMAZON-02

General

Check archive.org

Show headers Download Go to

Full URL: https://d35aaqx5ub95lt.cloudfront.net/css/app-f8086872.css
Requested by: Host: www.duolingo.com
URL: https://www.duolingo.com/
Protocol: H2
Security: TLS 1.3, , AES_128_GCM
Server: 2600:9000:206f:b400:7:60cd:e840:21 , United States, ASN16509 (AMAZON-02, US),
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GET
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61 KB 48ms
16ms Script
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Full URL: https://edge.fullstory.com/s/fs.js
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URL: https://d35aaqx5ub95lt.cloudfront.net/js/app-b27b64ff.js
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POST
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312 B 257ms
255ms XHR
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AMAZON-AES

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Full URL: https://excess.duolingo.com/batch
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GET
H2 200 config Show response
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111ms XHR
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AMAZON-AES

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Full URL

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1 KB 119ms
119ms XHR
application/json 54.89.23.229
AMAZON-AES

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Full URL

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

Requested by

Host: d35aaqx5ub95lt.cloudfront.net
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Protocol

Security

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GET
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1 KB 108ms
108ms XHR
application/json 54.89.23.229
AMAZON-AES

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Full URL

https://stories.duolingo.com/api2/config?fields=courses&_=1613528379150

Requested by

Host: d35aaqx5ub95lt.cloudfront.net
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Protocol

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Response headers

date: Wed, 17 Feb 2021 02:19:39 GMT
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30 KB 75ms
23ms Script
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Full URL: https://client.perimeterx.net/PXAsQJFZ9W/main.min.js
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Show headers Download Go to Show image

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Show headers Download Go to Show image

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Response headers

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Response headers

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AMAZON-02

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Response headers

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POST
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312 B 192ms
190ms XHR
text/plain 34.203.85.216
AMAZON-AES

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Full URL: https://excess.duolingo.com/batch
Requested by: Host: d35aaqx5ub95lt.cloudfront.net
URL: https://d35aaqx5ub95lt.cloudfront.net/js/app-b27b64ff.js
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date: Wed, 17 Feb 2021 02:19:39 GMT
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POST
H2 200 batch Show response
excess.duolingo.com/ 34 B
312 B 246ms
245ms XHR
text/plain 34.203.85.216
AMAZON-AES

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Show headers Download Go to

Full URL: https://excess.duolingo.com/batch
Requested by: Host: d35aaqx5ub95lt.cloudfront.net
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date: Wed, 17 Feb 2021 02:19:39 GMT
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OPTIONS
H2 200 batch
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AMAZON-AES

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Full URL: https://excess.duolingo.com/batch
Protocol: H2
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OPTIONS
H2 200 batch
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AMAZON-AES

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Full URL: https://excess.duolingo.com/batch
Protocol: H2
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date: Wed, 17 Feb 2021 02:19:39 GMT
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OPTIONS
H2 200 batch
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AMAZON-AES

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Show headers Download Go to

Full URL: https://excess.duolingo.com/batch
Protocol: H2
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Resource Hash

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Response headers

date: Wed, 17 Feb 2021 02:19:39 GMT
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AMAZON-02

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Response headers

date: Tue, 24 Nov 2020 20:25:42 GMT
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POST
H2 200 batch Show response
excess.duolingo.com/ 34 B
312 B 221ms
220ms XHR
text/plain 34.203.85.216
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/app-b27b64ff.js
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Response headers

date: Wed, 17 Feb 2021 02:19:39 GMT
accept-encoding: gzip, identity
server: Jetty(9.2.z-SNAPSHOT)
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1 KB 6ms
6ms XHR
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AMAZON-02

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Show headers Download Go to

Full URL: https://d35aaqx5ub95lt.cloudfront.net/images/c069b221165df641c9f803f6393d3873.svg
Requested by: Host: d35aaqx5ub95lt.cloudfront.net
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Response headers

date: Tue, 29 Sep 2020 09:48:08 GMT
content-encoding: gzip
vary: Origin
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x-cache: Hit from cloudfront
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POST
H2 200 batch Show response
excess.duolingo.com/ 34 B
312 B 249ms
247ms XHR
text/plain 34.203.85.216
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/app-b27b64ff.js
Protocol: H2
Security: TLS 1.2, ECDHE_RSA, AES_128_GCM
Server: 34.203.85.216 , United States, ASN14618 (AMAZON-AES, US),
Reverse DNS: ec2-34-203-85-216.compute-1.amazonaws.com
Software: Jetty(9.2.z-SNAPSHOT) /
Resource Hash: 26503ab2f8fd7184b8f272f63557e8d0b61c9d3cb6ee042e37a4e541dc2eb615

Request headers

Referer: https://www.duolingo.com/
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.61 Safari/537.36
Content-type: application/json

Response headers

date: Wed, 17 Feb 2021 02:19:39 GMT
accept-encoding: gzip, identity
server: Jetty(9.2.z-SNAPSHOT)
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
312 B 253ms
251ms XHR
text/plain 34.203.85.216
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/app-b27b64ff.js
Protocol: H2
Security: TLS 1.2, ECDHE_RSA, AES_128_GCM
Server: 34.203.85.216 , United States, ASN14618 (AMAZON-AES, US),
Reverse DNS: ec2-34-203-85-216.compute-1.amazonaws.com
Software: Jetty(9.2.z-SNAPSHOT) /
Resource Hash: 26503ab2f8fd7184b8f272f63557e8d0b61c9d3cb6ee042e37a4e541dc2eb615

Request headers

Referer: https://www.duolingo.com/
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.61 Safari/537.36
Content-type: application/json

Response headers

date: Wed, 17 Feb 2021 02:19:39 GMT
accept-encoding: gzip, identity
server: Jetty(9.2.z-SNAPSHOT)
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 list Show response
www.duolingo.com/api/1/courses/ 28 KB
4 KB 130ms
130ms XHR
application/json 54.89.23.229
AMAZON-AES

General

Check archive.org

Show headers Download Go to

Full URL

https://www.duolingo.com/api/1/courses/list?_=1613528379308

Requested by

Host: d35aaqx5ub95lt.cloudfront.net
URL: https://d35aaqx5ub95lt.cloudfront.net/js/app-b27b64ff.js

Protocol

Security

TLS 1.2, ECDHE_RSA, AES_128_GCM

Server

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

Reverse DNS

ec2-54-89-23-229.compute-1.amazonaws.com

Software

duo-api /

Resource Hash

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Security Headers

Name	Value
X-Frame-Options	SAMEORIGIN

Request headers

Accept: application/json, text/plain, */*
Referer: https://www.duolingo.com/
X-Requested-With: XMLHttpRequest
X-Amzn-Trace-Id: User=0
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.61 Safari/537.36

Response headers

pragma: no-cache
date: Wed, 17 Feb 2021 02:19:39 GMT
content-encoding: gzip
server: duo-api
x-ws: UK
no-retry: 1
x-tid: ffff2364602c7c930178
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: 28
x-runtime: 0.02575
expires: 0

POST
H2 200 collector Show response
collector-pxasqjfz9w.px-cloud.net/api/v2/ 610 B
831 B 86ms
47ms XHR
application/json 35.186.220.184
GOOGLE

General

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Show headers Download Go to

Full URL: https://collector-pxasqjfz9w.px-cloud.net/api/v2/collector
Requested by: Host: d35aaqx5ub95lt.cloudfront.net
URL: https://d35aaqx5ub95lt.cloudfront.net/js/app-b27b64ff.js
Protocol: H2
Security: TLS 1.3, , AES_128_GCM
Server: 35.186.220.184 Kansas City, United States, ASN15169 (GOOGLE, US),
Reverse DNS: 184.220.186.35.bc.googleusercontent.com
Software: /
Resource Hash: 2dfbc210796153b33b3540b06e2cf3005e6193c1372dfcbbfa220dfd73024ba8

Request headers

Referer: https://www.duolingo.com/
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.61 Safari/537.36
Content-type: application/x-www-form-urlencoded

Response headers

date: Wed, 17 Feb 2021 02:19:39 GMT
via: 1.1 google
access-control-allow-methods: GET,HEAD,PUT,PATCH,POST,DELETE
content-type: application/json; charset=utf-8
access-control-allow-origin: https://www.duolingo.com
access-control-allow-credentials: true
timing-allow-origin: *
alt-svc: clear
content-length: 610

GET
H2 200 analytics.js Show response
www.google-analytics.com/ 46 KB
19 KB 6ms
6ms Script
text/javascript 2a00:1450:4001:827::200e
GOOGLE

General

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Show headers Download Go to

Full URL

https://www.google-analytics.com/analytics.js

Requested by

Host: www.googletagmanager.com
URL: https://www.googletagmanager.com/gtm.js?id=GTM-TX6Z97C

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

2a00:1450:4001:827::200e Frankfurt am Main, Germany, ASN15169 (GOOGLE, US),

Reverse DNS

Software

Golfe2 /

Resource Hash

0f3be44690ae9914ae3e47b7752e1bdea316f09938e9094f99e0de19ccd8987a

Security Headers

Name	Value
Strict-Transport-Security	max-age=10886400; includeSubDomains; preload
X-Content-Type-Options	nosniff

Request headers

Referer: https://www.duolingo.com/
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.61 Safari/537.36

Response headers

strict-transport-security: max-age=10886400; includeSubDomains; preload
content-encoding: gzip
x-content-type-options: nosniff
last-modified: Fri, 05 Feb 2021 21:33:27 GMT
server: Golfe2
age: 5543
date: Wed, 17 Feb 2021 00:47:16 GMT
vary: Accept-Encoding
content-type: text/javascript
cache-control: public, max-age=7200
cross-origin-resource-policy: cross-origin
alt-svc: h3-29=":443"; ma=2592000,h3-T051=":443"; ma=2592000,h3-Q050=":443"; ma=2592000,h3-Q046=":443"; ma=2592000,h3-Q043=":443"; ma=2592000,quic=":443"; ma=2592000; v="46,43"
content-length: 18980
expires: Wed, 17 Feb 2021 02:47:16 GMT

GET
H3-Q050

200

activityi;dc_pre=CLTomM_t7-4CFVIXGwodOCADlw;src=9814127;type=hv3;cat=allpa0;ord=5267881750761;gtm=2wg230;auiddc=1528141672.1613528379;~oref=https%3A%2F%2Fwww.duolingo.com%2F Show response
9814127.fls.doubleclick.net/ Frame ADC4
Redirect Chain

https://9814127.fls.doubleclick.net/activityi;src=9814127;type=hv3;cat=allpa0;ord=5267881750761;gtm=2wg230;auiddc=1528141672.1613528379;~oref=https%3A%2F%2Fwww.duolingo.com%2F?
https://9814127.fls.doubleclick.net/activityi;dc_pre=CLTomM_t7-4CFVIXGwodOCADlw;src=9814127;type=hv3;cat=allpa0;ord=5267881750761;gtm=2wg230;auiddc=1528141672.1613528379;~oref=https%3A%2F%2Fwww.duo...

478 B
972 B

76ms
47ms

Document
text/html

172.217.18.102
GOOGLE

General

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Show headers Download Go to

Full URL

https://9814127.fls.doubleclick.net/activityi;dc_pre=CLTomM_t7-4CFVIXGwodOCADlw;src=9814127;type=hv3;cat=allpa0;ord=5267881750761;gtm=2wg230;auiddc=1528141672.1613528379;~oref=https%3A%2F%2Fwww.duolingo.com%2F?

Requested by

Host: www.googletagmanager.com
URL: https://www.googletagmanager.com/gtm.js?id=GTM-TX6Z97C

Protocol

H3-Q050

Security

QUIC, , AES_128_GCM

Server

172.217.18.102 , United States, ASN15169 (GOOGLE, US),

Reverse DNS

fra16s42-in-f6.1e100.net

Software

cafe /

Resource Hash

51a72d9e577c7c8fbf71091aba8211b7f925eca11573a592c222e189de73a327

Security Headers

Name	Value
Strict-Transport-Security	max-age=21600
X-Content-Type-Options	nosniff
X-Xss-Protection	0

Request headers

:method: GET
:authority: 9814127.fls.doubleclick.net
:scheme: https
:path: /activityi;dc_pre=CLTomM_t7-4CFVIXGwodOCADlw;src=9814127;type=hv3;cat=allpa0;ord=5267881750761;gtm=2wg230;auiddc=1528141672.1613528379;~oref=https%3A%2F%2Fwww.duolingo.com%2F?
pragma: no-cache
cache-control: no-cache
upgrade-insecure-requests: 1
user-agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.61 Safari/537.36
accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9
sec-fetch-site: cross-site
sec-fetch-mode: navigate
sec-fetch-dest: iframe
referer: https://www.duolingo.com/
accept-encoding: gzip, deflate, br
accept-language: en-US
Upgrade-Insecure-Requests: 1
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.61 Safari/537.36
Referer: about:blank

Response headers

p3p: policyref="https://googleads.g.doubleclick.net/pagead/gcn_p3p_.xml", CP="CURa ADMa DEVa TAIo PSAo PSDo OUR IND UNI PUR INT DEM STA PRE COM NAV OTC NOI DSP COR"
timing-allow-origin: *
cross-origin-resource-policy: cross-origin
date: Wed, 17 Feb 2021 02:19:39 GMT
expires: Fri, 01 Jan 1990 00:00:00 GMT
cache-control: no-cache, must-revalidate
strict-transport-security: max-age=21600
content-type: text/html; charset=UTF-8
pragma: no-cache
x-content-type-options: nosniff
content-encoding: gzip
server: cafe
content-length: 378
x-xss-protection: 0
set-cookie: test_cookie=CheckForPermission; expires=Wed, 17-Feb-2021 02:34:39 GMT; path=/; domain=.doubleclick.net; Secure; SameSite=none
alt-svc: h3-29=":443"; ma=2592000,h3-T051=":443"; ma=2592000,h3-Q050=":443"; ma=2592000,h3-Q046=":443"; ma=2592000,h3-Q043=":443"; ma=2592000,quic=":443"; ma=2592000; v="46,43"

Redirect headers

p3p: policyref="https://googleads.g.doubleclick.net/pagead/gcn_p3p_.xml", CP="CURa ADMa DEVa TAIo PSAo PSDo OUR IND UNI PUR INT DEM STA PRE COM NAV OTC NOI DSP COR"
timing-allow-origin: *
cross-origin-resource-policy: cross-origin
date: Wed, 17 Feb 2021 02:19:39 GMT
pragma: no-cache
expires: Fri, 01 Jan 1990 00:00:00 GMT
cache-control: no-cache, must-revalidate
follow-only-when-prerender-shown: 1
strict-transport-security: max-age=21600
location: https://9814127.fls.doubleclick.net/activityi;dc_pre=CLTomM_t7-4CFVIXGwodOCADlw;src=9814127;type=hv3;cat=allpa0;ord=5267881750761;gtm=2wg230;auiddc=1528141672.1613528379;~oref=https%3A%2F%2Fwww.duolingo.com%2F?
content-type: text/html; charset=UTF-8
x-content-type-options: nosniff
server: cafe
content-length: 0
x-xss-protection: 0
alt-svc: h3-29=":443"; ma=2592000,h3-T051=":443"; ma=2592000,h3-Q050=":443"; ma=2592000,h3-Q046=":443"; ma=2592000,h3-Q043=":443"; ma=2592000,quic=":443"; ma=2592000; v="46,43"

GET
H2 200 fbevents.js Show response
connect.facebook.net/en_US/ 91 KB
24 KB 18ms
6ms Script
application/x-javascript 2a03:2880:f01c:8012:face:b00c:0:3
FACEBOOK

General

Check archive.org

Show headers Download Go to

Full URL

https://connect.facebook.net/en_US/fbevents.js

Requested by

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

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

2a03:2880:f01c:8012:face:b00c:0:3 , United States, ASN32934 (FACEBOOK, US),

Reverse DNS

Software

Resource Hash

9e7ea2b4ba8e2bcc4a964d6192e4671dc5f6863a1c7e35b52b229a3c1e67a68d

Security Headers

Name	Value
Content-Security-Policy	default-src facebook.net .facebook.net fbcdn.net .fbcdn.net fbsbx.com .fbsbx.com data: blob: 'self';script-src .fbcdn.net .facebook.net 'unsafe-inline' 'unsafe-eval' blob: data: 'self';style-src data: blob: 'unsafe-inline' facebook.net .facebook.net fbcdn.net .fbcdn.net fbsbx.com .fbsbx.com;connect-src .fbcdn.net .facebook.net attachment.fbsbx.com blob: 'self' chrome-extension://boadgeojelhgndaghljhdicfkmllpafd chrome-extension://dliochdbjfkdbacpmhlcpmleaejidimm;block-all-mixed-content;upgrade-insecure-requests;report-uri https://www.facebook.com/csp/reporting/?m=c;
Strict-Transport-Security	max-age=31536000; preload; includeSubDomains
X-Content-Type-Options	nosniff
X-Frame-Options	DENY
X-Xss-Protection	0

Request headers

Referer: https://www.duolingo.com/
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.61 Safari/537.36

Response headers

content-security-policy: default-src facebook.net *.facebook.net fbcdn.net *.fbcdn.net fbsbx.com *.fbsbx.com data: blob: 'self';script-src *.fbcdn.net *.facebook.net 'unsafe-inline' 'unsafe-eval' blob: data: 'self';style-src data: blob: 'unsafe-inline' facebook.net *.facebook.net fbcdn.net *.fbcdn.net fbsbx.com *.fbsbx.com;connect-src *.fbcdn.net *.facebook.net attachment.fbsbx.com blob: 'self' chrome-extension://boadgeojelhgndaghljhdicfkmllpafd chrome-extension://dliochdbjfkdbacpmhlcpmleaejidimm;block-all-mixed-content;upgrade-insecure-requests;report-uri https://www.facebook.com/csp/reporting/?m=c;
content-encoding: gzip
x-content-type-options: nosniff
x-xss-protection: 0
cross-origin-resource-policy: cross-origin
alt-svc: h3-29=":443"; ma=3600,h3-27=":443"; ma=3600
content-length: 23762
x-fb-rlafr: 0
pragma: public
x-fb-debug: X8gxhKReMJ4/phIPCy4cBSUk7NO89/gFynD4NrTBTZyU6KLNFirHlFJIn4XubsGtx9k1Tn88EZmR2/H2baPdVQ==
x-fb-trip-id: 686109401
x-frame-options: DENY
cross-origin-embedder-policy-report-only: require-corp;report-to="coep_report"
date: Wed, 17 Feb 2021 02:19:39 GMT
strict-transport-security: max-age=31536000; preload; includeSubDomains
report-to: {"group":"coep_report","max_age":86400,"endpoints":[{"url":"https:\/\/www.facebook.com\/browser_reporting\/"}]}
content-type: application/x-javascript; charset=utf-8
vary: Accept-Encoding
cache-control: public, max-age=1200
expires: Sat, 01 Jan 2000 00:00:00 GMT

GET
H/1.1 200
OK adalyser.js Show response
c0.adalyser.com/ 35 KB
12 KB 125ms
32ms Script
application/javascript 34.240.141.66
AMAZON-02

General

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Show headers Download Go to

Full URL: https://c0.adalyser.com/adalyser.js?cid=duolingo
Requested by: Host: www.duolingo.com
URL: https://www.duolingo.com/
Protocol: HTTP/1.1
Security: TLS 1.2, ECDHE_RSA, AES_128_GCM
Server: 34.240.141.66 Dublin, Ireland, ASN16509 (AMAZON-02, US),
Reverse DNS: ec2-34-240-141-66.eu-west-1.compute.amazonaws.com
Software: / Express
Resource Hash: c1b356f3f76ac3ce3f19997f63fa181cb9d05cd531eb1ee612ce69a2a57fa56f

Request headers

Referer: https://www.duolingo.com/
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.61 Safari/537.36

Response headers

Date: Wed, 17 Feb 2021 02:19:39 GMT
Content-Encoding: gzip
ETag: "60b9cf4ef4ac6dab5294025f3c443ba3cca92451"
X-Powered-By: Express
P3P: CP="ADMa OUR IND DSP NON COR"
Access-Control-Allow-Origin: *
Cache-Control: public, max-age=21600
Access-Control-Allow-Credentials: true
Connection: keep-alive
Content-Type: application/javascript
Access-Control-Allow-Headers: origin, content-type, accept
Content-Length: 12183

POST
H3-Q050 200 collect Show response
www.google-analytics.com/j/ 2 B
389 B 46ms
13ms XHR
text/plain 2a00:1450:4001:827::200e
GOOGLE

General

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Show headers Download Go to

Full URL

https://www.google-analytics.com/j/collect?v=1&_v=j88&a=435381569&t=pageview&_s=1&dl=https%3A%2F%2Fwww.duolingo.com%2F&ul=en-us&de=UTF-8&dt=Duolingo%20-%20The%20world%27s%20best%20way%20to%20learn%20a%20language&sd=24-bit&sr=1600x1200&vp=1600x1200&je=0&_u=YEBAAEABAAAAAC~&jid=803682415&gjid=109877345&cid=1019389949.1613528380&tid=UA-21595814-1&_gid=92838520.1613528380&_r=1&gtm=2wg230TX6Z97C&did=i5iSjo&z=773649295

Requested by

Host: d35aaqx5ub95lt.cloudfront.net
URL: https://d35aaqx5ub95lt.cloudfront.net/js/app-b27b64ff.js

Protocol

H3-Q050

Security

QUIC, , AES_128_GCM

Server

2a00:1450:4001:827::200e Frankfurt am Main, Germany, ASN15169 (GOOGLE, US),

Reverse DNS

Software

Golfe2 /

Resource Hash

de3246094525b21a870fc7d2a67490d0132535c6fa5993755c549f1a9d1bd8af

Security Headers

Name	Value
X-Content-Type-Options	nosniff

Request headers

Referer: https://www.duolingo.com/
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.61 Safari/537.36
Content-Type: text/plain

Response headers

pragma: no-cache
date: Wed, 17 Feb 2021 02:19:39 GMT
x-content-type-options: nosniff
last-modified: Sun, 17 May 1998 03:00:00 GMT
server: Golfe2
content-type: text/plain
access-control-allow-origin: https://www.duolingo.com
cache-control: no-cache, no-store, must-revalidate
access-control-allow-credentials: true
cross-origin-resource-policy: cross-origin
alt-svc: h3-29=":443"; ma=2592000,h3-T051=":443"; ma=2592000,h3-Q050=":443"; ma=2592000,h3-Q046=":443"; ma=2592000,h3-Q043=":443"; ma=2592000,quic=":443"; ma=2592000; v="46,43"
content-length: 2
expires: Fri, 01 Jan 1990 00:00:00 GMT

GET
H2 200 1735692093320310 Show response
connect.facebook.net/signals/config/ 241 KB
70 KB 129ms
128ms Script
application/x-javascript 2a03:2880:f01c:8012:face:b00c:0:3
FACEBOOK

General

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Show headers Download Go to

Full URL

https://connect.facebook.net/signals/config/1735692093320310?v=2.9.33&r=stable

Requested by

Host: connect.facebook.net
URL: https://connect.facebook.net/en_US/fbevents.js

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

2a03:2880:f01c:8012:face:b00c:0:3 , United States, ASN32934 (FACEBOOK, US),

Reverse DNS

Software

Resource Hash

e68f1d805e7c69ea9c65e16b005a4f98b99782845250507a4f9e0b4f7bb773ce

Security Headers

Name	Value
Content-Security-Policy	default-src facebook.net .facebook.net fbcdn.net .fbcdn.net fbsbx.com .fbsbx.com data: blob: 'self';script-src .fbcdn.net .facebook.net 'unsafe-inline' 'unsafe-eval' blob: data: 'self';style-src data: blob: 'unsafe-inline' facebook.net .facebook.net fbcdn.net .fbcdn.net fbsbx.com .fbsbx.com;connect-src .fbcdn.net .facebook.net attachment.fbsbx.com blob: 'self' chrome-extension://boadgeojelhgndaghljhdicfkmllpafd chrome-extension://dliochdbjfkdbacpmhlcpmleaejidimm;block-all-mixed-content;upgrade-insecure-requests;report-uri https://www.facebook.com/csp/reporting/?m=c;
Strict-Transport-Security	max-age=31536000; preload; includeSubDomains
X-Content-Type-Options	nosniff
X-Frame-Options	DENY
X-Xss-Protection	0

Request headers

Referer: https://www.duolingo.com/
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.61 Safari/537.36

Response headers

content-security-policy: default-src facebook.net *.facebook.net fbcdn.net *.fbcdn.net fbsbx.com *.fbsbx.com data: blob: 'self';script-src *.fbcdn.net *.facebook.net 'unsafe-inline' 'unsafe-eval' blob: data: 'self';style-src data: blob: 'unsafe-inline' facebook.net *.facebook.net fbcdn.net *.fbcdn.net fbsbx.com *.fbsbx.com;connect-src *.fbcdn.net *.facebook.net attachment.fbsbx.com blob: 'self' chrome-extension://boadgeojelhgndaghljhdicfkmllpafd chrome-extension://dliochdbjfkdbacpmhlcpmleaejidimm;block-all-mixed-content;upgrade-insecure-requests;report-uri https://www.facebook.com/csp/reporting/?m=c;
content-encoding: gzip
x-content-type-options: nosniff
x-xss-protection: 0
cross-origin-resource-policy: cross-origin
alt-svc: h3-29=":443"; ma=3600,h3-27=":443"; ma=3600
x-fb-rlafr: 0
pragma: public
x-fb-debug: PVJGVF7xhBaq13T7HqM4bzF1YddYmnweNvl64RY0FlzFoEKug0YHA+UarMPQaTWpF42494yjIJT7/Ee4a9n1XQ==
x-fb-trip-id: 686109401
x-frame-options: DENY
cross-origin-embedder-policy-report-only: require-corp;report-to="coep_report"
date: Wed, 17 Feb 2021 02:19:39 GMT
strict-transport-security: max-age=31536000; preload; includeSubDomains
report-to: {"group":"coep_report","max_age":86400,"endpoints":[{"url":"https:\/\/www.facebook.com\/browser_reporting\/"}]}
content-type: application/x-javascript; charset=utf-8
vary: Accept-Encoding
cache-control: public, max-age=1200
x-content-id: 49145511
expires: Sat, 01 Jan 2000 00:00:00 GMT

POST
H2 200 collect Show response
stats.g.doubleclick.net/j/ 4 B
89 B 16ms
16ms XHR
text/plain 2a00:1450:400c:c1b::9c
GOOGLE

General

Check archive.org

Show headers Download Go to

Full URL

https://stats.g.doubleclick.net/j/collect?t=dc&aip=1&_r=3&v=1&_v=j88&tid=UA-21595814-1&cid=1019389949.1613528380&jid=803682415&gjid=109877345&_gid=92838520.1613528380&_u=YEBAAEAAAAAAAC~&z=2046345632

Requested by

Host: d35aaqx5ub95lt.cloudfront.net
URL: https://d35aaqx5ub95lt.cloudfront.net/js/app-b27b64ff.js

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

2a00:1450:400c:c1b::9c Brussels, Belgium, ASN15169 (GOOGLE, US),

Reverse DNS

Software

Golfe2 /

Resource Hash

84e01419bd81f32ac6df0f75f49c604fda9172000a3ae432b3c47b2a6a712d80

Security Headers

Name	Value
Strict-Transport-Security	max-age=10886400; includeSubDomains; preload
X-Content-Type-Options	nosniff

Request headers

Referer: https://www.duolingo.com/
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.61 Safari/537.36
Content-Type: text/plain

Response headers

pragma: no-cache
strict-transport-security: max-age=10886400; includeSubDomains; preload
x-content-type-options: nosniff
last-modified: Sun, 17 May 1998 03:00:00 GMT
server: Golfe2
date: Wed, 17 Feb 2021 02:19:39 GMT
content-type: text/plain
access-control-allow-origin: https://www.duolingo.com
cache-control: no-cache, no-store, must-revalidate
access-control-allow-credentials: true
cross-origin-resource-policy: cross-origin
alt-svc: h3-29=":443"; ma=2592000,h3-T051=":443"; ma=2592000,h3-Q050=":443"; ma=2592000,h3-Q046=":443"; ma=2592000,h3-Q043=":443"; ma=2592000,quic=":443"; ma=2592000; v="46,43"
content-length: 4
expires: Fri, 01 Jan 1990 00:00:00 GMT

GET
H2 200 ga-audiences
www.google.com/ads/ 42 B
107 B 17ms
17ms Image
image/gif 2a00:1450:4001:82b::2004
GOOGLE

General

Check archive.org

Show headers Download Go to Show image

Full URL

https://www.google.com/ads/ga-audiences?t=sr&aip=1&_r=4&slf_rd=1&v=1&_v=j88&tid=UA-21595814-1&cid=1019389949.1613528380&jid=803682415&_u=YEBAAEAAAAAAAC~&z=1996114962

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

2a00:1450:4001:82b::2004 Frankfurt am Main, Germany, ASN15169 (GOOGLE, US),

Reverse DNS

Software

cafe /

Resource Hash

ef1955ae757c8b966c83248350331bd3a30f658ced11f387f8ebf05ab3368629

Security Headers

Name	Value
X-Content-Type-Options	nosniff
X-Xss-Protection	0

Request headers

Referer: https://www.duolingo.com/
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.61 Safari/537.36

Response headers

pragma: no-cache
date: Wed, 17 Feb 2021 02:19:39 GMT
x-content-type-options: nosniff
server: cafe
timing-allow-origin: *
p3p: policyref="https://www.googleadservices.com/pagead/p3p.xml", CP="NOI DEV PSA PSD IVA IVD OTP OUR OTR IND OTC"
cache-control: no-cache, no-store, must-revalidate
cross-origin-resource-policy: cross-origin
content-type: image/gif
alt-svc: h3-29=":443"; ma=2592000,h3-T051=":443"; ma=2592000,h3-Q050=":443"; ma=2592000,h3-Q046=":443"; ma=2592000,h3-Q043=":443"; ma=2592000,quic=":443"; ma=2592000; v="46,43"
content-length: 42
x-xss-protection: 0
expires: Fri, 01 Jan 1990 00:00:00 GMT

GET
H2 200 ga-audiences
www.google.de/ads/ 42 B
107 B 17ms
16ms Image
image/gif 2a00:1450:4001:80f::2003
GOOGLE

General

Check archive.org

Show headers Download Go to Show image

Full URL

https://www.google.de/ads/ga-audiences?t=sr&aip=1&_r=4&slf_rd=1&v=1&_v=j88&tid=UA-21595814-1&cid=1019389949.1613528380&jid=803682415&_u=YEBAAEAAAAAAAC~&z=1996114962

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

2a00:1450:4001:80f::2003 Frankfurt am Main, Germany, ASN15169 (GOOGLE, US),

Reverse DNS

Software

cafe /

Resource Hash

ef1955ae757c8b966c83248350331bd3a30f658ced11f387f8ebf05ab3368629

Security Headers

Name	Value
X-Content-Type-Options	nosniff
X-Xss-Protection	0

Request headers

Referer: https://www.duolingo.com/
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.61 Safari/537.36

Response headers

pragma: no-cache
date: Wed, 17 Feb 2021 02:19:39 GMT
x-content-type-options: nosniff
server: cafe
timing-allow-origin: *
p3p: policyref="https://www.googleadservices.com/pagead/p3p.xml", CP="NOI DEV PSA PSD IVA IVD OTP OUR OTR IND OTC"
cache-control: no-cache, no-store, must-revalidate
cross-origin-resource-policy: cross-origin
content-type: image/gif
alt-svc: h3-29=":443"; ma=2592000,h3-T051=":443"; ma=2592000,h3-Q050=":443"; ma=2592000,h3-Q046=":443"; ma=2592000,h3-Q043=":443"; ma=2592000,quic=":443"; ma=2592000; v="46,43"
content-length: 42
x-xss-protection: 0
expires: Fri, 01 Jan 1990 00:00:00 GMT

GET
H/1.1 200
OK p
c0.adalyser.com/tracking/track/v3/ 43 B
478 B 31ms
31ms Image
image/gif 34.240.141.66
AMAZON-02

General

Check archive.org

Show headers Download Go to Show image

Full URL: https://c0.adalyser.com/tracking/track/v3/p?stm=1613528379640&e=lce1&url=https%3A%2F%2Fwww.duolingo.com%2F&cid=duolingo&p=%7B%22et%22%3A1613528379637%2C%22nr%22%3A%22New%22%2C%22cg%22%3A%22Direct%22%2C%22dt%22%3A%22desktop%22%2C%22so%22%3A%22direct%22%2C%22me%22%3A%22none%22%2C%22ca%22%3A%22direct%22%2C%22co%22%3A%22(not%20set)%22%2C%22ke%22%3A%22(not%20set)%22%2C%22vid%22%3A%221%22%2C%22sid%22%3A%224727a424-18c0-4356-be1f-27293472388a%22%2C%22duid%22%3A%221db45c9a-5d17-4e07-83f7-0f41679ecd2d%22%2C%22cw%22%3A1613528379637%7D&userAgent=Mozilla%2F5.0%20(Macintosh%3B%20Intel%20Mac%20OS%20X%2010_14_5)%20AppleWebKit%2F537.36%20(KHTML%2C%20like%20Gecko)%20Chrome%2F83.0.4103.61%20Safari%2F537.36&domain=www.duolingo.com
Protocol: HTTP/1.1
Security: TLS 1.2, ECDHE_RSA, AES_128_GCM
Server: 34.240.141.66 Dublin, Ireland, ASN16509 (AMAZON-02, US),
Reverse DNS: ec2-34-240-141-66.eu-west-1.compute.amazonaws.com
Software: / Express
Resource Hash: a065920df8cc4016d67c3a464be90099c9d28ffe7c9e6ee3a18f257efc58cbd7

Request headers

Referer: https://www.duolingo.com/
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.61 Safari/537.36

Response headers

Pragma: no-cache
Date: Wed, 17 Feb 2021 02:19:39 GMT
ETag: W/"2b-B//0C13UlayirE4cP7xgqg"
X-Powered-By: Express
P3P: CP="ADMa OUR IND DSP NON COR"
Access-Control-Allow-Origin: *
Cache-Control: no-cache, no-store, must-revalidate
Access-Control-Allow-Credentials: true
Connection: keep-alive
content-type: image/gif
Access-Control-Allow-Headers: origin, content-type, accept
Content-Length: 43
Expires: 0

GET
H2 200 dc_pre=CLTomM_t7-4CFVIXGwodOCADlw;src=9814127;type=hv3;cat=allpa0;ord=5267881750761;gtm=2wg230;auiddc=1528141672.1613528379;~oref=https%3A%2F%2Fwww.duolingo.com%2F Show response
adservice.google.com/ddm/fls/i/ Frame 9A38 477 B
1 KB 61ms
42ms Document
text/html 2a00:1450:4001:80f::2002
GOOGLE

General

Check archive.org

Show headers Download Go to

Full URL

https://adservice.google.com/ddm/fls/i/dc_pre=CLTomM_t7-4CFVIXGwodOCADlw;src=9814127;type=hv3;cat=allpa0;ord=5267881750761;gtm=2wg230;auiddc=1528141672.1613528379;~oref=https%3A%2F%2Fwww.duolingo.com%2F

Requested by

Host: 9814127.fls.doubleclick.net
URL: https://9814127.fls.doubleclick.net/activityi;dc_pre=CLTomM_t7-4CFVIXGwodOCADlw;src=9814127;type=hv3;cat=allpa0;ord=5267881750761;gtm=2wg230;auiddc=1528141672.1613528379;~oref=https%3A%2F%2Fwww.duolingo.com%2F?

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

2a00:1450:4001:80f::2002 Frankfurt am Main, Germany, ASN15169 (GOOGLE, US),

Reverse DNS

Software

cafe /

Resource Hash

32831fbc0e70a14b9958d53bb8b3e8ba31aecb195be92cf34acc4beea4a739d6

Security Headers

Name	Value
X-Content-Type-Options	nosniff
X-Xss-Protection	0

Request headers

:method: GET
:authority: adservice.google.com
:scheme: https
:path: /ddm/fls/i/dc_pre=CLTomM_t7-4CFVIXGwodOCADlw;src=9814127;type=hv3;cat=allpa0;ord=5267881750761;gtm=2wg230;auiddc=1528141672.1613528379;~oref=https%3A%2F%2Fwww.duolingo.com%2F
pragma: no-cache
cache-control: no-cache
upgrade-insecure-requests: 1
user-agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.61 Safari/537.36
accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9
sec-fetch-site: cross-site
sec-fetch-mode: navigate
sec-fetch-dest: iframe
referer: https://9814127.fls.doubleclick.net/activityi;dc_pre=CLTomM_t7-4CFVIXGwodOCADlw;src=9814127;type=hv3;cat=allpa0;ord=5267881750761;gtm=2wg230;auiddc=1528141672.1613528379;~oref=https%3A%2F%2Fwww.duolingo.com%2F?
accept-encoding: gzip, deflate, br
accept-language: en-US
Upgrade-Insecure-Requests: 1
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.61 Safari/537.36
Referer: https://9814127.fls.doubleclick.net/activityi;dc_pre=CLTomM_t7-4CFVIXGwodOCADlw;src=9814127;type=hv3;cat=allpa0;ord=5267881750761;gtm=2wg230;auiddc=1528141672.1613528379;~oref=https%3A%2F%2Fwww.duolingo.com%2F?

Response headers

p3p: policyref="https://www.googleadservices.com/pagead/p3p.xml", CP="NOI DEV PSA PSD IVA IVD OTP OUR OTR IND OTC"
timing-allow-origin: *
cross-origin-resource-policy: cross-origin
date: Wed, 17 Feb 2021 02:19:39 GMT
expires: Fri, 01 Jan 1990 00:00:00 GMT
cache-control: no-cache, must-revalidate
content-type: text/html; charset=UTF-8
pragma: no-cache
x-content-type-options: nosniff
content-encoding: gzip
server: cafe
content-length: 377
x-xss-protection: 0
alt-svc: h3-29="googleads.g.doubleclick.net:443"; ma=2592000,h3-29=":443"; ma=2592000,h3-T051="googleads.g.doubleclick.net:443"; ma=2592000,h3-T051=":443"; ma=2592000,h3-Q050="googleads.g.doubleclick.net:443"; ma=2592000,h3-Q050=":443"; ma=2592000,h3-Q046="googleads.g.doubleclick.net:443"; ma=2592000,h3-Q046=":443"; ma=2592000,h3-Q043="googleads.g.doubleclick.net:443"; ma=2592000,h3-Q043=":443"; ma=2592000,quic="googleads.g.doubleclick.net:443"; ma=2592000; v="46,43",quic=":443"; ma=2592000; v="46,43"

GET
H3-Q050

200

dc_pre=CLTomM_t7-4CFVIXGwodOCADlw;src=9814127;type=hv3;cat=allpa0;ord=5267881750761;gtm=2wg230;auiddc=1528141672.1613528379;~oref=https%3A%2F%2Fwww.duolingo.com%2F Show response
9814127.fls.doubleclick.net/ddm/fls/r/ Frame 4C28
Redirect Chain

https://adservice.google.de/ddm/fls/i/dc_pre=CLTomM_t7-4CFVIXGwodOCADlw;src=9814127;type=hv3;cat=allpa0;ord=5267881750761;gtm=2wg230;auiddc=1528141672.1613528379;~oref=https%3A%2F%2Fwww.duolingo.co...
https://9814127.fls.doubleclick.net/ddm/fls/r/dc_pre=CLTomM_t7-4CFVIXGwodOCADlw;src=9814127;type=hv3;cat=allpa0;ord=5267881750761;gtm=2wg230;auiddc=1528141672.1613528379;~oref=https%3A%2F%2Fwww.duo...

2 KB
1 KB

33ms
32ms

Document
text/html

172.217.18.102
GOOGLE

General

Check archive.org

Show headers Download Go to

Full URL

https://9814127.fls.doubleclick.net/ddm/fls/r/dc_pre=CLTomM_t7-4CFVIXGwodOCADlw;src=9814127;type=hv3;cat=allpa0;ord=5267881750761;gtm=2wg230;auiddc=1528141672.1613528379;~oref=https%3A%2F%2Fwww.duolingo.com%2F

Requested by

Host: adservice.google.com
URL: https://adservice.google.com/ddm/fls/i/dc_pre=CLTomM_t7-4CFVIXGwodOCADlw;src=9814127;type=hv3;cat=allpa0;ord=5267881750761;gtm=2wg230;auiddc=1528141672.1613528379;~oref=https%3A%2F%2Fwww.duolingo.com%2F

Protocol

H3-Q050

Security

QUIC, , AES_128_GCM

Server

172.217.18.102 , United States, ASN15169 (GOOGLE, US),

Reverse DNS

fra16s42-in-f6.1e100.net

Software

cafe /

Resource Hash

80dfdeb912887592e93d52977096424831c238b4d704da7c521261c0670b2a29

Security Headers

Name	Value
Strict-Transport-Security	max-age=21600
X-Content-Type-Options	nosniff
X-Xss-Protection	0

Request headers

:method: GET
:authority: 9814127.fls.doubleclick.net
:scheme: https
:path: /ddm/fls/r/dc_pre=CLTomM_t7-4CFVIXGwodOCADlw;src=9814127;type=hv3;cat=allpa0;ord=5267881750761;gtm=2wg230;auiddc=1528141672.1613528379;~oref=https%3A%2F%2Fwww.duolingo.com%2F
pragma: no-cache
cache-control: no-cache
upgrade-insecure-requests: 1
user-agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.61 Safari/537.36
accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9
sec-fetch-site: cross-site
sec-fetch-mode: navigate
sec-fetch-dest: iframe
referer: https://adservice.google.com/ddm/fls/i/dc_pre=CLTomM_t7-4CFVIXGwodOCADlw;src=9814127;type=hv3;cat=allpa0;ord=5267881750761;gtm=2wg230;auiddc=1528141672.1613528379;~oref=https%3A%2F%2Fwww.duolingo.com%2F
accept-encoding: gzip, deflate, br
accept-language: en-US
cookie: test_cookie=CheckForPermission
Upgrade-Insecure-Requests: 1
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.61 Safari/537.36
Referer: https://adservice.google.com/ddm/fls/i/dc_pre=CLTomM_t7-4CFVIXGwodOCADlw;src=9814127;type=hv3;cat=allpa0;ord=5267881750761;gtm=2wg230;auiddc=1528141672.1613528379;~oref=https%3A%2F%2Fwww.duolingo.com%2F

Response headers

p3p: policyref="https://googleads.g.doubleclick.net/pagead/gcn_p3p_.xml", CP="CURa ADMa DEVa TAIo PSAo PSDo OUR IND UNI PUR INT DEM STA PRE COM NAV OTC NOI DSP COR"
timing-allow-origin: *
cross-origin-resource-policy: cross-origin
date: Wed, 17 Feb 2021 02:19:39 GMT
expires: Wed, 17 Feb 2021 02:19:39 GMT
cache-control: private, max-age=0
strict-transport-security: max-age=21600
content-type: text/html; charset=UTF-8
x-content-type-options: nosniff
content-encoding: gzip
server: cafe
content-length: 894
x-xss-protection: 0
set-cookie: IDE=AHWqTUlBoX-L8CAczmLGmS9Y4NpZ1c5r_lulN0dOQFSairTnWv_XGN8yVHdBRcR5-50; expires=Mon, 14-Mar-2022 02:19:39 GMT; path=/; domain=.doubleclick.net; Secure; HttpOnly; SameSite=none test_cookie=; expires=Fri, 01-Aug-2008 22:45:55 GMT; path=/; domain=.doubleclick.net; Secure; HttpOnly; SameSite=none
alt-svc: h3-29=":443"; ma=2592000,h3-T051=":443"; ma=2592000,h3-Q050=":443"; ma=2592000,h3-Q046=":443"; ma=2592000,h3-Q043=":443"; ma=2592000,quic=":443"; ma=2592000; v="46,43"

Redirect headers

p3p: policyref="https://www.googleadservices.com/pagead/p3p.xml", CP="NOI DEV PSA PSD IVA IVD OTP OUR OTR IND OTC"
timing-allow-origin: *
cross-origin-resource-policy: cross-origin
date: Wed, 17 Feb 2021 02:19:39 GMT
pragma: no-cache
expires: Fri, 01 Jan 1990 00:00:00 GMT
cache-control: no-cache, must-revalidate
location: https://9814127.fls.doubleclick.net/ddm/fls/r/dc_pre=CLTomM_t7-4CFVIXGwodOCADlw;src=9814127;type=hv3;cat=allpa0;ord=5267881750761;gtm=2wg230;auiddc=1528141672.1613528379;~oref=https%3A%2F%2Fwww.duolingo.com%2F
content-type: text/html; charset=UTF-8
x-content-type-options: nosniff
server: cafe
content-length: 0
x-xss-protection: 0
alt-svc: h3-29="googleads.g.doubleclick.net:443"; ma=2592000,h3-29=":443"; ma=2592000,h3-T051="googleads.g.doubleclick.net:443"; ma=2592000,h3-T051=":443"; ma=2592000,h3-Q050="googleads.g.doubleclick.net:443"; ma=2592000,h3-Q050=":443"; ma=2592000,h3-Q046="googleads.g.doubleclick.net:443"; ma=2592000,h3-Q046=":443"; ma=2592000,h3-Q043="googleads.g.doubleclick.net:443"; ma=2592000,h3-Q043=":443"; ma=2592000,quic="googleads.g.doubleclick.net:443"; ma=2592000; v="46,43",quic=":443"; ma=2592000; v="46,43"

GET
H2 200 /
www.facebook.com/tr/ 44 B
409 B 22ms
6ms Image
image/gif 2a03:2880:f11c:8183:face:b00c:0:25de
FACEBOOK

General

Check archive.org

Show headers Download Go to Show image

Full URL

https://www.facebook.com/tr/?id=1735692093320310&ev=PageView&dl=https%3A%2F%2Fwww.duolingo.com%2F&rl=&if=false&ts=1613528379765&sw=1600&sh=1200&v=2.9.33&r=stable&ec=0&o=29&fbp=fb.1.1613528379764.1306444427&it=1613528379542&coo=false&rqm=GET

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

2a03:2880:f11c:8183:face:b00c:0:25de , United States, ASN32934 (FACEBOOK, US),

Reverse DNS

Software

proxygen-bolt /

Resource Hash

10d8d42d73a02ddb877101e72fbfa15a0ec820224d97cedee4cf92d571be5caa

Security Headers

Name	Value
Strict-Transport-Security	max-age=31536000; includeSubDomains

Request headers

Referer: https://www.duolingo.com/
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.61 Safari/537.36

Response headers

date: Wed, 17 Feb 2021 02:19:39 GMT
last-modified: Fri, 21 Dec 2012 00:00:01 GMT
server: proxygen-bolt
strict-transport-security: max-age=31536000; includeSubDomains
content-type: image/gif
cache-control: no-cache, must-revalidate, max-age=0
cross-origin-resource-policy: cross-origin
alt-svc: h3-29=":443"; ma=3600,h3-27=":443"; ma=3600
content-length: 44
expires: Wed, 17 Feb 2021 02:19:39 GMT

GET
H2 200 /
insight.adsrvr.org/track/pxl/ Frame 4C28 70 B
261 B 99ms
32ms Image
image/gif 52.51.124.53
AMAZON-02

General

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p3p: CP="NOI DSP COR CUR ADMo DEVo PSAo PSDo OUR SAMo BUS UNI NAV"

GET
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s.pinimg.com/ct/ Frame 4C28 1 KB
833 B 121ms
106ms Script
application/javascript 2a02:26f0:7100:1a7::1931
AKAMAI-ASN1

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Full URL: https://s.pinimg.com/ct/core.js
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GET
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FACEBOOK

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https://connect.facebook.net/en_US/fbevents.js

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https://www.facebook.com/tr/?id=1735692093320310&ev=PageView&dl=https%3A%2F%2F9814127.fls.doubleclick.net%2Fddm%2Ffls%2Fr%2Fdc_pre%3DCLTomM_t7-4CFVIXGwodOCADlw%3Bsrc%3D9814127%3Btype%3Dhv3%3Bcat%3Dallpa0%3Bord%3D5267881750761%3Bgtm%3D2wg230%3Bauiddc%3D1528141672.1613528379%3B~oref%3Dhttps%253A%252F%252Fwww.duolingo.com%252F&rl=https%3A%2F%2Fadservice.google.com%2Fddm%2Ffls%2Fi%2Fdc_pre%3DCLTomM_t7-4CFVIXGwodOCADlw%3Bsrc%3D9814127%3Btype%3Dhv3%3Bcat%3Dallpa0%3Bord%3D5267881750761%3Bgtm%3D2wg230%3Bauiddc%3D1528141672.1613528379%3B~oref%3Dhttps%253A%252F%252Fwww.duolingo.com%252F&if=true&ts=1613528379855&sw=1600&sh=1200&v=2.9.33&r=stable&ec=0&o=30&it=1613528379832&coo=false&rqm=GET

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Security

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GET
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GET
H2 200 / Show response
ct.pinterest.com/user/ Frame 4C28 38 B
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Full URL

https://ct.pinterest.com/user/?tid=2612728976278&pd=%7B%22em%22%3A%2224aba99b2defbb47ee981b4200313f61f3ae31541d8717bdac1e463c838939b0%22%7D&cb=1613528380068

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Security

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Software

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GET
H2 200 /
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Full URL

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POST
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https://ct.pinterest.com/md/

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Host: s.pinimg.com
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date: Wed, 17 Feb 2021 02:19:40 GMT
referrer-policy: origin
x-cdn: akamai
strict-transport-security: max-age=31536000 ; includeSubDomains ; preload
access-control-allow-origin: *
cache-control: no-cache,no-store,must-revalidate,max-age=0
x-envoy-upstream-service-time: 1
x-pinterest-rid: 1772358800512149
expires: Sat, 01 Jan 2000 00:00:00 GMT

POST
H2 200 collector Show response
collector-pxasqjfz9w.px-cloud.net/api/v2/ 366 B
431 B 61ms
60ms XHR
application/json 35.186.220.184
GOOGLE

General

Check archive.org

Show headers Download Go to

Full URL: https://collector-pxasqjfz9w.px-cloud.net/api/v2/collector
Requested by: Host: d35aaqx5ub95lt.cloudfront.net
URL: https://d35aaqx5ub95lt.cloudfront.net/js/app-b27b64ff.js
Protocol: H2
Security: TLS 1.3, , AES_128_GCM
Server: 35.186.220.184 Kansas City, United States, ASN15169 (GOOGLE, US),
Reverse DNS: 184.220.186.35.bc.googleusercontent.com
Software: /
Resource Hash: 96fe391ffa9e487e2fec890f17f827a8369d161d1179bc98ff523b883105c0e2

Request headers

Referer: https://www.duolingo.com/
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.61 Safari/537.36
Content-type: application/x-www-form-urlencoded

Response headers

date: Wed, 17 Feb 2021 02:19:39 GMT
via: 1.1 google
access-control-allow-methods: GET,HEAD,PUT,PATCH,POST,DELETE
content-type: application/json; charset=utf-8
access-control-allow-origin: https://www.duolingo.com
access-control-allow-credentials: true
timing-allow-origin: *
alt-svc: clear
content-length: 366

GET
H2 200 /
www.facebook.com/tr/ Frame 4C28 44 B
147 B 7ms
6ms Image
image/gif 2a03:2880:f11c:8183:face:b00c:0:25de
FACEBOOK

General

Check archive.org

Show headers Download Go to Show image

Full URL

https://www.facebook.com/tr/?id=1735692093320310&ev=Microdata&dl=https%3A%2F%2F9814127.fls.doubleclick.net%2Fddm%2Ffls%2Fr%2Fdc_pre%3DCLTomM_t7-4CFVIXGwodOCADlw%3Bsrc%3D9814127%3Btype%3Dhv3%3Bcat%3Dallpa0%3Bord%3D5267881750761%3Bgtm%3D2wg230%3Bauiddc%3D1528141672.1613528379%3B~oref%3Dhttps%253A%252F%252Fwww.duolingo.com%252F&rl=https%3A%2F%2Fadservice.google.com%2Fddm%2Ffls%2Fi%2Fdc_pre%3DCLTomM_t7-4CFVIXGwodOCADlw%3Bsrc%3D9814127%3Btype%3Dhv3%3Bcat%3Dallpa0%3Bord%3D5267881750761%3Bgtm%3D2wg230%3Bauiddc%3D1528141672.1613528379%3B~oref%3Dhttps%253A%252F%252Fwww.duolingo.com%252F&if=true&ts=1613528381361&cd[DataLayer]=%5B%5D&cd[Meta]=%7B%22title%22%3A%22%22%7D&cd[OpenGraph]=%7B%7D&cd[Schema.org]=%5B%5D&cd[JSON-LD]=%5B%5D&sw=1600&sh=1200&v=2.9.33&r=stable&ec=1&o=30&it=1613528379832&coo=false&es=automatic&tm=3&rqm=GET

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

2a03:2880:f11c:8183:face:b00c:0:25de , United States, ASN32934 (FACEBOOK, US),

Reverse DNS

Software

proxygen-bolt /

Resource Hash

10d8d42d73a02ddb877101e72fbfa15a0ec820224d97cedee4cf92d571be5caa

Security Headers

Name	Value
Strict-Transport-Security	max-age=31536000; includeSubDomains

Request headers

Referer: https://9814127.fls.doubleclick.net/ddm/fls/r/dc_pre=CLTomM_t7-4CFVIXGwodOCADlw;src=9814127;type=hv3;cat=allpa0;ord=5267881750761;gtm=2wg230;auiddc=1528141672.1613528379;~oref=https%3A%2F%2Fwww.duolingo.com%2F
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.61 Safari/537.36

Response headers

date: Wed, 17 Feb 2021 02:19:41 GMT
last-modified: Fri, 21 Dec 2012 00:00:01 GMT
server: proxygen-bolt
strict-transport-security: max-age=31536000; includeSubDomains
content-type: image/gif
cache-control: no-cache, must-revalidate, max-age=0
cross-origin-resource-policy: cross-origin
alt-svc: h3-29=":443"; ma=3600,h3-27=":443"; ma=3600
content-length: 44
expires: Wed, 17 Feb 2021 02:19:41 GMT

OPTIONS batch
excess.duolingo.com/ Frame 0
0

Failed requests

These URLs were requested, but there was no response received. You will also see them in the list above.

Domain: excess.duolingo.com
URL: https://excess.duolingo.com/batch

Verdicts & Comments Add Verdict or Comment

78 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.

10 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/	1970-01-20 00:57:44	Name: lp Value: splash
www.duolingo.com/	1970-01-19 16:22:13	Name: AWSALB Value: Ah5fYuvn9ow43ExqlkGrTYh2k0+53xzvUwQFCq4zbjq4dELN2RdZfNV/gf/QETlzTkBRRAAjU4LjZlR711+HlvADvSe7kTpkRz9t5yNySSyLmLG07yBgVe8KI41J
.duolingo.com/	1970-01-20 00:57:44	Name: lr Value:
.duolingo.com/	1970-01-20 00:57:44	Name: initial_referrer Value: $direct
www.duolingo.com/	1970-01-19 16:22:13	Name: AWSALBCORS Value: Ah5fYuvn9ow43ExqlkGrTYh2k0+53xzvUwQFCq4zbjq4dELN2RdZfNV/gf/QETlzTkBRRAAjU4LjZlR711+HlvADvSe7kTpkRz9t5yNySSyLmLG07yBgVe8KI41J
.duolingo.com/	1970-01-20 00:57:44	Name: lu Value: https://www.duolingo.com/
.duolingo.com/	1970-01-20 00:57:44	Name: logged_out_uuid Value: 15c0f939-b4c1-4ab8-96d5-8d5b03368f0b
.duolingo.com/	1970-01-20 00:57:44	Name: tsl Value: 1613528379121
www.duolingo.com/	1969-12-31 23:59:59	Name: wuuid Value: 8b3a9d9e-4be1-45a4-830e-13797b600560
.duolingo.com/	1970-01-20 00:57:44	Name: lang Value: en

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.

9814127.fls.doubleclick.net
adservice.google.com
adservice.google.de
c0.adalyser.com
client.perimeterx.net
collector-pxasqjfz9w.px-cloud.net
connect.facebook.net
ct.pinterest.com
d35aaqx5ub95lt.cloudfront.net
edge.fullstory.com
excess.duolingo.com
insight.adsrvr.org
s.pinimg.com
stats.g.doubleclick.net
stories.duolingo.com
www.duolingo.com
www.facebook.com
www.google-analytics.com
www.google.com
www.google.de
www.googletagmanager.com
excess.duolingo.com
104.75.88.209
151.101.114.110
172.217.18.102
2600:9000:206f:b400:7:60cd:e840:21
2a00:1450:4001:80f::2002
2a00:1450:4001:80f::2003
2a00:1450:4001:80f::2008
2a00:1450:4001:827::200e
2a00:1450:4001:82b::2004
2a00:1450:400c:c1b::9c
2a02:26f0:7100:1a7::1931
2a03:2880:f01c:8012:face:b00c:0:3
2a03:2880:f11c:8183:face:b00c:0:25de
34.203.85.216
34.240.141.66
35.186.220.184
35.201.112.186
52.51.124.53
54.89.23.229
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www.duolingo.com Open in urlscan Pro 54.89.23.229 Public Scan

Summary

urlscan.io Verdict: No classification

Domain & IP information

Screenshot Live screenshot Full Image

Detected technologies

Page Statistics

84 Requests

99 %HTTPS

53 %IPv6

16 Domains

21 Subdomains

20 IPs

4 Countries

1055 kBTransfer

3496 kBSize

10 Cookies

41 Outgoing links

Redirected requests

84 HTTP transactions Everything HTML Script AJAX CSS Image Expand all 0 data transactions

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www.duolingo.com Open in urlscan Pro
54.89.23.229 Public Scan

Screenshot
Live screenshot

Full Image

84
Requests

99 %
HTTPS

53 %
IPv6

16
Domains

21
Subdomains

20
IPs

4
Countries

1055 kB
Transfer

3496 kB
Size

10
Cookies

84 HTTP transactions
0 data transactions