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

URL:
https://www.duolingo.com/
Submission: On March 28 via manual (March 28th 2019, 10:07:04 am UTC) from GB

Summary HTTP 32 Redirects Links 45 Behaviour Indicators

Summary

This website contacted 11 IPs in 2 countries across 8 domains to perform 32 HTTP transactions. The main IP is 54.88.115.88, located in Ashburn, United States and belongs to AMAZON-AES - Amazon.com, Inc., US. The main domain is www.duolingo.com.
TLS certificate: Issued by Go Daddy Secure Certificate Authority... on January 18th 2019. Valid for: 2 years.

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
4	54.88.115.88 54.88.115.88	14618 (AMAZON-AES) (AMAZON-AES - Amazon.com)
11	2600:9000:200... 2600:9000:200c:3400:7:60cd:e840:21	16509 (AMAZON-02) (AMAZON-02 - Amazon.com)
1	2a00:1450:400... 2a00:1450:4001:820::2008	15169 (GOOGLE) (GOOGLE - Google LLC)
1	151.101.2.110 151.101.2.110	54113 (FASTLY) (FASTLY - Fastly)
1	13.35.254.106 13.35.254.106	16509 (AMAZON-02) (AMAZON-02 - Amazon.com)
2	2600:9000:200... 2600:9000:200c:9e00:7:60cd:e840:21	16509 (AMAZON-02) (AMAZON-02 - Amazon.com)
6	50.19.28.89 50.19.28.89	14618 (AMAZON-AES) (AMAZON-AES - Amazon.com)
2	34.192.142.121 34.192.142.121	14618 (AMAZON-AES) (AMAZON-AES - Amazon.com)
2	35.190.10.112 35.190.10.112	15169 (GOOGLE) (GOOGLE - Google LLC)
1 2	2a00:1450:400... 2a00:1450:4001:81e::200e	15169 (GOOGLE) (GOOGLE - Google LLC)
1 1	2a00:1450:400... 2a00:1450:400c:c0a::9b	15169 (GOOGLE) (GOOGLE - Google LLC)
1 1	2a00:1450:400... 2a00:1450:4001:817::2004	15169 (GOOGLE) (GOOGLE - Google LLC)
1	2a00:1450:400... 2a00:1450:4001:815::2003	15169 (GOOGLE) (GOOGLE - Google LLC)
32	11

4 54.88.115.88 (Ashburn, United States)

ASN14618 (AMAZON-AES - Amazon.com, Inc., US)
PTR: ec2-54-88-115-88.compute-1.amazonaws.com

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

11 2600:9000:200c:3400:7:60cd:e840:21 (United States)

ASN16509 (AMAZON-02 - Amazon.com, Inc., US)

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

1 2a00:1450:4001:820::2008 (Ireland)

ASN15169 (GOOGLE - Google LLC, US)

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

1 151.101.2.110 (San Francisco, United States)

ASN54113 (FASTLY - Fastly, US)

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

1 13.35.254.106 (Seattle, United States)

ASN16509 (AMAZON-02 - Amazon.com, Inc., US)
PTR: server-13-35-254-106.fra6.r.cloudfront.net

d7mj4aqfscim2.cloudfront.net	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

2 2600:9000:200c:9e00:7:60cd:e840:21 (United States)

ASN16509 (AMAZON-02 - Amazon.com, Inc., US)

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

6 50.19.28.89 (Ashburn, United States)

ASN14618 (AMAZON-AES - Amazon.com, Inc., US)
PTR: ec2-50-19-28-89.compute-1.amazonaws.com

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

2 34.192.142.121 (Ashburn, United States)

ASN14618 (AMAZON-AES - Amazon.com, Inc., US)
PTR: ec2-34-192-142-121.compute-1.amazonaws.com

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

2 35.190.10.112 (Mountain View, United States)

ASN15169 (GOOGLE - Google LLC, US)
PTR: 112.10.190.35.bc.googleusercontent.com

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

2 2a00:1450:4001:81e::200e (Ireland) 1 redirects

ASN15169 (GOOGLE - Google LLC, US)

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

1 2a00:1450:400c:c0a::9b (Ireland) 1 redirects

ASN15169 (GOOGLE - Google LLC, US)

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

1 2a00:1450:4001:817::2004 (Ireland) 1 redirects

ASN15169 (GOOGLE - Google LLC, US)

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

1 2a00:1450:4001:815::2003 (Ireland)

ASN15169 (GOOGLE - Google LLC, US)

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

	Apex Domain Subdomains	Transfer
14	cloudfront.net d35aaqx5ub95lt.cloudfront.net d7mj4aqfscim2.cloudfront.net	753 KB
12	duolingo.com www.duolingo.com excess.duolingo.com	12 KB
3	perimeterx.net client.perimeterx.net collector-pxasqjfz9w.perimeterx.net	27 KB
2	google-analytics.com 1 redirects www.google-analytics.com	17 KB
1	google.de www.google.de	109 B
1	google.com 1 redirects www.google.com	179 B
1	doubleclick.net 1 redirects stats.g.doubleclick.net	160 B
1	googletagmanager.com www.googletagmanager.com	24 KB
32	8

	Domain	Requested by
13	d35aaqx5ub95lt.cloudfront.net	www.duolingo.com d35aaqx5ub95lt.cloudfront.net
8	excess.duolingo.com	d35aaqx5ub95lt.cloudfront.net
4	www.duolingo.com	d35aaqx5ub95lt.cloudfront.net
2	www.google-analytics.com	1 redirects www.googletagmanager.com
2	collector-pxasqjfz9w.perimeterx.net	d35aaqx5ub95lt.cloudfront.net
1	www.google.de
1	www.google.com	1 redirects
1	stats.g.doubleclick.net	1 redirects
1	d7mj4aqfscim2.cloudfront.net	d35aaqx5ub95lt.cloudfront.net
1	client.perimeterx.net	d35aaqx5ub95lt.cloudfront.net
1	www.googletagmanager.com	d35aaqx5ub95lt.cloudfront.net
32	11

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

Domain
itunes.apple.com
play.google.com
www.microsoft.com
schools.duolingo.com
ai.duolingo.com
incubator.duolingo.com
gear.duolingo.com
sponsorships.duolingo.com
englishtest.duolingo.com
tinycards.duolingo.com
podcast.duolingo.com
stories.duolingo.com
status.duolingo.com
making.duolingo.com
www.facebook.com
twitter.com
www.youtube.com
plus.google.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	`2019-01-18` - `2021-01-18`	2 years	crt.sh
*.cloudfront.net DigiCert Global CA G2	`2018-10-08` - `2019-10-09`	a year	crt.sh
*.google-analytics.com Google Internet Authority G3	`2019-03-01` - `2019-05-24`	3 months	crt.sh
f4.shared.global.fastly.net GlobalSign CloudSSL CA - SHA256 - G3	`2019-03-21` - `2020-03-21`	a year	crt.sh
*.perimeterx.net COMODO RSA Domain Validation Secure Server CA	`2018-02-07` - `2019-07-24`	a year	crt.sh
www.google.de Google Internet Authority G3	`2019-03-01` - `2019-05-24`	3 months	crt.sh

This page contains 1 frames:

Primary Page: https://www.duolingo.com/
Frame ID: B821F58C4834890E0D21F2F52952B0D7
Requests: 32 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 Analytics (Analytics) Expand

Overall confidence: 100%
Detected patterns

env /^gaGlobal$/i

Google Tag Manager (Tag Managers) Expand

Overall confidence: 100%
Detected patterns

env /^google_tag_manager$/i

webpack (Miscellaneous) Expand

Overall confidence: 100%
Detected patterns

env /^webpackJsonp$/i

Page Statistics

32
Requests

100 %
HTTPS

54 %
IPv6

8
Domains

11
Subdomains

11
IPs

2
Countries

834 kB
Transfer

2994 kB
Size

7
Cookies

45 Outgoing links

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

URL: https://itunes.apple.com/app/duolingo-learn-spanish-french/id570060128?mt=8
Title: iOS

Search URL Search Domain Scan URL

URL: https://play.google.com/store/apps/details?id=com.duolingo&hl=en&referrer=utm_source%3Dduolingo.com%26utm_medium%3Dduolingo_web%26utm_content%3Ddownload_button%26utm_campaign%3Dsplash
Title: Android

Search URL Search Domain Scan URL

URL: https://www.microsoft.com/store/apps/duolingo-learn-languages-for-free/9wzdncrcv5xn
Title: Windows Phone

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://ai.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://gear.duolingo.com/
Title: Gear

Search URL Search Domain Scan URL

URL: http://sponsorships.duolingo.com/
Title: Advertise with us

Search URL Search Domain Scan URL

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

Search URL Search Domain Scan URL

URL: https://tinycards.duolingo.com/
Title: Tinycards

Search URL Search Domain Scan URL

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

Search URL Search Domain Scan URL

URL: https://stories.duolingo.com/
Title: Stories

Search URL Search Domain Scan URL

URL: https://play.google.com/store/apps/details?id=com.duolingo&hl=en&referrer=utm_source%3Dduolingo.com%26utm_medium%3Dduolingo_web%26utm_content%3Dtext_link%26utm_campaign%3Dfooter_site-map
Title: Duolingo for Android

Search URL Search Domain Scan URL

URL: https://itunes.apple.com/app/apple-store/id1109425556?pt=1374442&ct=Site%20map&mt=8
Title: Tinycards (iOS)

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: http://making.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://plus.google.com/+duolingo
Title: Google+

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 27

https://www.google-analytics.com/r/collect?v=1&_v=j73&a=884143259&t=pageview&_s=1&dl=https%3A%2F%2Fwww.duolingo.com%2F&ul=en-us&de=UTF-8&dt=Duolingo%3A%20Learn%20Spanish%2C%20French%20and%20other%20languages%20for%20free&sd=24-bit&sr=1600x1200&vp=1585x1200&je=0&_u=IEBAAQAB~&jid=223138269&gjid=2135219084&cid=610054846.1553767609&tid=UA-21595814-1&_gid=1565395885.1553767609&_r=1&gtm=2ou3i1&z=1831588292 HTTP 302
https://stats.g.doubleclick.net/r/collect?v=1&aip=1&t=dc&_r=3&tid=UA-21595814-1&cid=610054846.1553767609&jid=223138269&_gid=1565395885.1553767609&gjid=2135219084&_v=j73&z=1831588292 HTTP 302
https://www.google.com/ads/ga-audiences?v=1&aip=1&t=sr&_r=4&tid=UA-21595814-1&cid=610054846.1553767609&jid=223138269&_v=j73&z=1831588292 HTTP 302
https://www.google.de/ads/ga-audiences?v=1&aip=1&t=sr&_r=4&tid=UA-21595814-1&cid=610054846.1553767609&jid=223138269&_v=j73&z=1831588292&slf_rd=1&random=635710912

32 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/ 7 KB
3 KB 395ms
173ms Document
text/html 54.88.115.88
Amazon.com

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

54.88.115.88 Ashburn, United States, ASN14618 (AMAZON-AES - Amazon.com, Inc., US),

Reverse DNS

ec2-54-88-115-88.compute-1.amazonaws.com

Software

duo-api /

Resource Hash

a5437543e876681dfcff2ade386a0bd67edec540e9ded86e8e4e1b7ac17f4ec9

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_13_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36
accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8
accept-encoding: gzip, deflate, br
Upgrade-Insecure-Requests: 1
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36

Response headers

status: 200
date: Thu, 28 Mar 2019 10:06:47 GMT
content-type: text/html; charset=UTF-8
set-cookie: AWSALB=6vHd2aIBfT/+/P4BEtIYz+nABkqR5+Z+UO8zTA6iIwqEPrBcToYabXZk6D1JwYF0nsCZwkBzD+gISKFISBMjPuQkNuSO5kPCb8Cwww0LUSDsVdXm78uB32RjTdJ1; Expires=Thu, 04 Apr 2019 10:06:47 GMT; Path=/ logged_out_uuid=8b89eb8d-532b-4d53-8b97-250bae99be7d; Domain=.duolingo.com; Max-Age=31536000; Path=/; expires=Fri, 27-Mar-2020 10:06:47 GMT lang=en; Domain=.duolingo.com; Max-Age=31536000; Path=/; expires=Fri, 27-Mar-2020 10:06:47 GMT wuuid=a33e0301-3c5f-4cdf-ae71-0d8d0614cc1a _pxhd=e6d453b0ef459ec25bd00e382add182477d489d0de2add5a2c211dea65695c60:32b2bf11-5141-11e9-ba7d-fd3bd5b7c341; path=/; expires=Fri, 27 Mar 2020 10:06:47 GMT;
server: duo-api
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: ffff0edf5c9c9a7105bb
x-ws: UK
x-runtime: 0.03276
x-ipcountry: US
content-encoding: gzip
x-envoy-upstream-service-time: 76
x-duo-request-host: www.duolingo.com

GET
H2 200 ltr-5a3e197a.css
d35aaqx5ub95lt.cloudfront.net/css/ 420 KB
76 KB 56ms
13ms Stylesheet
text/css 2600:9000:200c:3400:7:60cd:e840:21
Amazon.com

General

Check archive.org

Show headers Download Go to

Full URL: https://d35aaqx5ub95lt.cloudfront.net/css/ltr-5a3e197a.css
Requested by: Host: www.duolingo.com
URL: https://www.duolingo.com/
Protocol: H2
Security: TLS 1.2, ECDHE_RSA, AES_128_GCM
Server: 2600:9000:200c:3400:7:60cd:e840:21 , United States, ASN16509 (AMAZON-02 - Amazon.com, Inc., US),
Reverse DNS
Software: AmazonS3 /
Resource Hash: e8a400d7b2a94ebd433cc8538c665211eacee0e5a20f85b8a02865ac2c750dcb

Request headers

Referer: https://www.duolingo.com/
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36

Response headers

date: Wed, 27 Mar 2019 22:15:14 GMT
content-encoding: gzip
last-modified: Wed, 27 Mar 2019 22:14:15 GMT
server: AmazonS3
age: 42694
etag: "222d7cdcd1f62a4ca4b4a475124ce4a9"
x-cache: Hit from cloudfront
content-type: text/css
status: 200
cache-control: max-age=315360000
accept-ranges: bytes
content-length: 77247
via: 1.1 7b88ef0d81161ffd0111d52a2de2bd25.cloudfront.net (CloudFront)
x-amz-cf-id: U99BSVsfxLKT_WNAmY0I2bbcFHxR3UnaRsVHtX5paIjeL0NORscjbQ==

GET
H2 200 vendor-a49663e3.js Show response
d35aaqx5ub95lt.cloudfront.net/js/ 727 KB
241 KB 51ms
8ms Script
text/javascript 2600:9000:200c:3400:7:60cd:e840:21
Amazon.com

General

Check archive.org

Show headers Download Go to

Full URL: https://d35aaqx5ub95lt.cloudfront.net/js/vendor-a49663e3.js
Requested by: Host: www.duolingo.com
URL: https://www.duolingo.com/
Protocol: H2
Security: TLS 1.2, ECDHE_RSA, AES_128_GCM
Server: 2600:9000:200c:3400:7:60cd:e840:21 , United States, ASN16509 (AMAZON-02 - Amazon.com, Inc., US),
Reverse DNS
Software: AmazonS3 /
Resource Hash: e2a6d0b9bd74d6d8c2f5ec6c76fcbf625d6ecee0a81e105e88d6064ae6c458ac

Request headers

Referer: https://www.duolingo.com/
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36

Response headers

date: Tue, 26 Mar 2019 16:20:48 GMT
content-encoding: gzip
last-modified: Tue, 26 Mar 2019 16:19:47 GMT
server: AmazonS3
age: 150360
etag: "28d39c9b0c4964da1f8270ffa5f97ebf"
x-cache: Hit from cloudfront
content-type: text/javascript
status: 200
cache-control: max-age=315360000
accept-ranges: bytes
content-length: 246102
via: 1.1 7b88ef0d81161ffd0111d52a2de2bd25.cloudfront.net (CloudFront)
x-amz-cf-id: ZcFSip6QyLYkLQzwV8kOSoXRfuRx9D3-JcudIX3KoPzJLHiVHLgy3A==

GET
H2 200 en-dd58e145.js Show response
d35aaqx5ub95lt.cloudfront.net/strings/ 59 KB
22 KB 62ms
19ms Script
text/javascript 2600:9000:200c:3400:7:60cd:e840:21
Amazon.com

General

Check archive.org

Show headers Download Go to

Full URL: https://d35aaqx5ub95lt.cloudfront.net/strings/en-dd58e145.js
Requested by: Host: www.duolingo.com
URL: https://www.duolingo.com/
Protocol: H2
Security: TLS 1.2, ECDHE_RSA, AES_128_GCM
Server: 2600:9000:200c:3400:7:60cd:e840:21 , United States, ASN16509 (AMAZON-02 - Amazon.com, Inc., US),
Reverse DNS
Software: AmazonS3 /
Resource Hash: f35cfa5b52d880cd43b24ee8fef027f8e545819ccd8d23bc399159086a1de009

Request headers

Referer: https://www.duolingo.com/
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36

Response headers

date: Wed, 27 Mar 2019 18:22:11 GMT
content-encoding: gzip
last-modified: Wed, 27 Mar 2019 18:21:12 GMT
server: AmazonS3
age: 56677
etag: "6648d21c8fbccd520fb4e8a3417d08c5"
x-cache: Hit from cloudfront
content-type: text/javascript
status: 200
cache-control: max-age=315360000
accept-ranges: bytes
content-length: 22560
via: 1.1 7b88ef0d81161ffd0111d52a2de2bd25.cloudfront.net (CloudFront)
x-amz-cf-id: TYzdacJDROBjPsgOMa9aIrUuuk8tDCfRivhxMZyclyMAGHW_ZFFDIA==

GET
H2 200 app-15b43e39.js Show response
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262 KB 75ms
32ms Script
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Amazon.com

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GET
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25 KB 29ms
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access-control-allow-credentials: true
accept-ranges: bytes
x-amz-cf-id: JkPvnhsFm65-6VNicasJmn74j0qFC3Jw90sxVttKYaVShYeX14y1uA==

OPTIONS
H/1.1 200
OK batch Show response
excess.duolingo.com/ 0
395 B 397ms
96ms XHR
text/plain 50.19.28.89
Amazon.com

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/vendor-a49663e3.js
Protocol: HTTP/1.1
Security: TLS 1.2, ECDHE_RSA, AES_128_GCM
Server: 50.19.28.89 Ashburn, United States, ASN14618 (AMAZON-AES - Amazon.com, Inc., US),
Reverse DNS: ec2-50-19-28-89.compute-1.amazonaws.com
Software: nginx/1.12.1 /
Resource Hash: e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

Request headers

Pragma: no-cache
Access-Control-Request-Method: POST
Origin: https://www.duolingo.com
Accept-Encoding: gzip, deflate, br
Host: excess.duolingo.com
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36
Accept: */*
Cache-Control: no-cache
Referer: https://www.duolingo.com/
Connection: keep-alive
Access-Control-Request-Headers: content-type
Access-Control-Request-Method: POST
Origin: https://www.duolingo.com
Referer: https://www.duolingo.com/
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36
Access-Control-Request-Headers: content-type

Response headers

Date: Thu, 28 Mar 2019 10:06:48 GMT
Accept-Encoding: gzip, identity
Server: nginx/1.12.1
Allow: GET, HEAD, POST, TRACE, OPTIONS
Access-Control-Allow-Methods: POST, GET, OPTIONS
Access-Control-Allow-Origin: *
Access-Control-Max-Age: 3600
Connection: keep-alive
Access-Control-Allow-Headers: Content-Type, Access-Control-Allow-Headers, Authorization
Content-Length: 0

GET
H2 200 config Show response
www.duolingo.com/2017-06-30/ 2 KB
1 KB 172ms
166ms XHR
application/json 54.88.115.88
Amazon.com

General

Check archive.org

Show headers Download Go to

Full URL

https://www.duolingo.com/2017-06-30/config?_=1553767608413

Requested by

Host: d35aaqx5ub95lt.cloudfront.net
URL: https://d35aaqx5ub95lt.cloudfront.net/js/vendor-a49663e3.js

Protocol

Security

TLS 1.2, ECDHE_RSA, AES_128_GCM

Server

54.88.115.88 Ashburn, United States, ASN14618 (AMAZON-AES - Amazon.com, Inc., US),

Reverse DNS

ec2-54-88-115-88.compute-1.amazonaws.com

Software

duo-api /

Resource Hash

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Security Headers

Name	Value
X-Frame-Options	SAMEORIGIN

Request headers

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pragma: no-cache
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accept-encoding: gzip, deflate, br
user-agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36
accept: application/json
cache-control: no-cache
:authority: www.duolingo.com
referer: https://www.duolingo.com/
:scheme: https
:method: GET
Accept: application/json
Referer: https://www.duolingo.com/
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36

Response headers

date: Thu, 28 Mar 2019 10:06:48 GMT
content-encoding: gzip
x-ws: UK
x-tid: ffff0c6c5c9c990008f0
surrogate-control: no-store
status: 200
x-envoy-upstream-service-time: 65
x-duo-request-host: www.duolingo.com
x-runtime: 0.00429
server: duo-api
x-frame-options: SAMEORIGIN
content-type: application/json; charset=UTF-8
pragma: no-cache
cache-control: no-store, no-cache, must-revalidate, proxy-revalidate
set-cookie: AWSALB=LsHqCYrq/WqPq33NG20/rXI+Bij5x4Kw1OCCWxjmQl1l0xaCjpBtijqviDqbxU9DWJmRv7nbaSvpWYY7faOzepVs5raLmjwrpt0KrnIccFJkQUkFaqhLbuUWRDES; Expires=Thu, 04 Apr 2019 10:06:48 GMT; Path=/
expires: 0

POST
H2 200 tracking-status Show response
www.duolingo.com/2017-06-30/ 2 B
838 B 155ms
154ms XHR
application/json 54.88.115.88
Amazon.com

General

Check archive.org

Show headers Download Go to

Full URL

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

Requested by

Host: d35aaqx5ub95lt.cloudfront.net
URL: https://d35aaqx5ub95lt.cloudfront.net/js/vendor-a49663e3.js

Protocol

Security

TLS 1.2, ECDHE_RSA, AES_128_GCM

Server

54.88.115.88 Ashburn, United States, ASN14618 (AMAZON-AES - Amazon.com, Inc., US),

Reverse DNS

ec2-54-88-115-88.compute-1.amazonaws.com

Software

duo-api /

Resource Hash

44136fa355b3678a1146ad16f7e8649e94fb4fc21fe77e8310c060f61caaff8a

Security Headers

Name	Value
X-Frame-Options	SAMEORIGIN

Request headers

:path: /2017-06-30/tracking-status
pragma: no-cache
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accept-encoding: gzip, deflate, br
user-agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36
content-type: application/json; charset=UTF-8
accept: application/json
cache-control: no-cache
:authority: www.duolingo.com
referer: https://www.duolingo.com/
:scheme: https
content-length: 68
:method: POST
Accept: application/json
Referer: https://www.duolingo.com/
Origin: https://www.duolingo.com
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36
Content-Type: application/json; charset=UTF-8

Response headers

date: Thu, 28 Mar 2019 10:06:48 GMT
x-ws: UK
access-control-allow-origin: https://www.duolingo.com
x-tid: ffff10365c9c9b2404d1
surrogate-control: no-store
status: 200
access-control-max-age: 1728000
x-envoy-upstream-service-time: 56
x-duo-request-host: www.duolingo.com
content-length: 2
x-runtime: 0.01572
server: duo-api
x-frame-options: SAMEORIGIN
access-control-allow-methods: GET, POST, OPTIONS, PATCH, PUT, DELETE
content-type: application/json; charset=UTF-8
pragma: no-cache
access-control-expose-headers: Cache-Control, Content-Length, Content-Type, Expires, Pragma, Surrogate-Control
cache-control: no-store, no-cache, must-revalidate, proxy-revalidate
access-control-allow-credentials: true
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access-control-allow-headers: , accept, accept-encoding, accept-language, authorization, cache-control, connection, content-type, dnt, host, if-modified-since, keep-alive, user-agent, x-requested-with
expires: 0

OPTIONS
H/1.1 200
OK batch Show response
excess.duolingo.com/ 0
395 B 474ms
96ms XHR
text/plain 50.19.28.89
Amazon.com

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/vendor-a49663e3.js
Protocol: HTTP/1.1
Security: TLS 1.2, ECDHE_RSA, AES_128_GCM
Server: 50.19.28.89 Ashburn, United States, ASN14618 (AMAZON-AES - Amazon.com, Inc., US),
Reverse DNS: ec2-50-19-28-89.compute-1.amazonaws.com
Software: nginx/1.12.1 /
Resource Hash: e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

Request headers

Pragma: no-cache
Access-Control-Request-Method: POST
Origin: https://www.duolingo.com
Accept-Encoding: gzip, deflate, br
Host: excess.duolingo.com
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36
Accept: */*
Cache-Control: no-cache
Referer: https://www.duolingo.com/
Connection: keep-alive
Access-Control-Request-Headers: content-type
Access-Control-Request-Method: POST
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Referer: https://www.duolingo.com/
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Access-Control-Request-Headers: content-type

Response headers

Date: Thu, 28 Mar 2019 10:06:48 GMT
Accept-Encoding: gzip, identity
Server: nginx/1.12.1
Allow: GET, HEAD, POST, TRACE, OPTIONS
Access-Control-Allow-Methods: POST, GET, OPTIONS
Access-Control-Allow-Origin: *
Access-Control-Max-Age: 3600
Connection: keep-alive
Access-Control-Allow-Headers: Content-Type, Access-Control-Allow-Headers, Authorization
Content-Length: 0

OPTIONS
H/1.1 200
OK batch Show response
excess.duolingo.com/ 0
395 B 497ms
96ms XHR
text/plain 34.192.142.121
Amazon.com

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/vendor-a49663e3.js
Protocol: HTTP/1.1
Security: TLS 1.2, ECDHE_RSA, AES_128_GCM
Server: 34.192.142.121 Ashburn, United States, ASN14618 (AMAZON-AES - Amazon.com, Inc., US),
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Software: nginx/1.12.1 /
Resource Hash: e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

Request headers

Pragma: no-cache
Access-Control-Request-Method: POST
Origin: https://www.duolingo.com
Accept-Encoding: gzip, deflate, br
Host: excess.duolingo.com
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36
Accept: */*
Cache-Control: no-cache
Referer: https://www.duolingo.com/
Connection: keep-alive
Access-Control-Request-Headers: content-type
Access-Control-Request-Method: POST
Origin: https://www.duolingo.com
Referer: https://www.duolingo.com/
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Access-Control-Request-Headers: content-type

Response headers

Date: Thu, 28 Mar 2019 10:06:48 GMT
Accept-Encoding: gzip, identity
Server: nginx/1.12.1
Allow: GET, HEAD, POST, TRACE, OPTIONS
Access-Control-Allow-Methods: POST, GET, OPTIONS
Access-Control-Allow-Origin: *
Access-Control-Max-Age: 3600
Connection: keep-alive
Access-Control-Allow-Headers: Content-Type, Access-Control-Allow-Headers, Authorization
Content-Length: 0

GET
H2 200 list Show response
www.duolingo.com/api/1/courses/ 24 KB
3 KB 165ms
158ms XHR
application/json 54.88.115.88
Amazon.com

General

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Show headers Download Go to

Full URL

https://www.duolingo.com/api/1/courses/list?_=1553767608451

Requested by

Host: d35aaqx5ub95lt.cloudfront.net
URL: https://d35aaqx5ub95lt.cloudfront.net/js/vendor-a49663e3.js

Protocol

Security

TLS 1.2, ECDHE_RSA, AES_128_GCM

Server

54.88.115.88 Ashburn, United States, ASN14618 (AMAZON-AES - Amazon.com, Inc., US),

Reverse DNS

ec2-54-88-115-88.compute-1.amazonaws.com

Software

duo-api /

Resource Hash

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Security Headers

Name	Value
X-Frame-Options	SAMEORIGIN

Request headers

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accept: application/json, text/plain, */*
cache-control: no-cache
:authority: www.duolingo.com
x-requested-with: XMLHttpRequest
:scheme: https
referer: https://www.duolingo.com/
:method: GET
Accept: application/json, text/plain, */*
Referer: https://www.duolingo.com/
X-Requested-With: XMLHttpRequest
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36

Response headers

date: Thu, 28 Mar 2019 10:06:48 GMT
content-encoding: gzip
x-ws: UK
x-tid: ffff126f5c9c9c490131
surrogate-control: no-store
status: 200
x-envoy-upstream-service-time: 59
x-duo-request-host: www.duolingo.com
x-runtime: 0.01752
server: duo-api
x-frame-options: SAMEORIGIN
content-type: application/json; charset=UTF-8
pragma: no-cache
cache-control: no-store, no-cache, must-revalidate, proxy-revalidate
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expires: 0

OPTIONS
H/1.1 200
OK batch Show response
excess.duolingo.com/ 0
395 B 517ms
99ms XHR
text/plain 50.19.28.89
Amazon.com

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/vendor-a49663e3.js
Protocol: HTTP/1.1
Security: TLS 1.2, ECDHE_RSA, AES_128_GCM
Server: 50.19.28.89 Ashburn, United States, ASN14618 (AMAZON-AES - Amazon.com, Inc., US),
Reverse DNS: ec2-50-19-28-89.compute-1.amazonaws.com
Software: nginx/1.12.1 /
Resource Hash: e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

Request headers

Pragma: no-cache
Access-Control-Request-Method: POST
Origin: https://www.duolingo.com
Accept-Encoding: gzip, deflate, br
Host: excess.duolingo.com
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36
Accept: */*
Cache-Control: no-cache
Referer: https://www.duolingo.com/
Connection: keep-alive
Access-Control-Request-Headers: content-type
Access-Control-Request-Method: POST
Origin: https://www.duolingo.com
Referer: https://www.duolingo.com/
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36
Access-Control-Request-Headers: content-type

Response headers

Date: Thu, 28 Mar 2019 10:06:48 GMT
Accept-Encoding: gzip, identity
Server: nginx/1.12.1
Allow: GET, HEAD, POST, TRACE, OPTIONS
Access-Control-Allow-Methods: POST, GET, OPTIONS
Access-Control-Allow-Origin: *
Access-Control-Max-Age: 3600
Connection: keep-alive
Access-Control-Allow-Headers: Content-Type, Access-Control-Allow-Headers, Authorization
Content-Length: 0

POST
H2 200 collector Show response
collector-pxasqjfz9w.perimeterx.net/api/v1/ 551 B
853 B 86ms
35ms XHR
application/json 35.190.10.112
Google LLC

General

Check archive.org

Show headers Download Go to

Full URL: https://collector-pxasqjfz9w.perimeterx.net/api/v1/collector
Requested by: Host: d35aaqx5ub95lt.cloudfront.net
URL: https://d35aaqx5ub95lt.cloudfront.net/js/vendor-a49663e3.js
Protocol: H2
Security: TLS 1.2, ECDHE_RSA, AES_128_GCM
Server: 35.190.10.112 Mountain View, United States, ASN15169 (GOOGLE - Google LLC, US),
Reverse DNS: 112.10.190.35.bc.googleusercontent.com
Software: /
Resource Hash: a97336b93bec6c6351a93fb04b98894e656d062b8e8898079058320a31362bd8

Request headers

Referer: https://www.duolingo.com/
Origin: https://www.duolingo.com
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36
Content-type: application/x-www-form-urlencoded

Response headers

date: Thu, 28 Mar 2019 10:06:48 GMT
via: 1.1 google
status: 200
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: 551

GET
H2 200 analytics.js Show response
www.google-analytics.com/ 43 KB
17 KB 8ms
7ms Script
text/javascript 2a00:1450:4001:81e::200e
Google LLC

General

Check archive.org

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/gtag/js?id=UA-21595814-1

Protocol

Security

TLS 1.2, ECDHE_RSA, AES_128_GCM

Server

2a00:1450:4001:81e::200e , Ireland, ASN15169 (GOOGLE - Google LLC, US),

Reverse DNS

Software

Golfe2 /

Resource Hash

3e552578c7d450b023f2cd9d28f830be4335c3acc6c4ab6dadda0769f09e5f22

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_13_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36

Response headers

strict-transport-security: max-age=10886400; includeSubDomains; preload
content-encoding: gzip
x-content-type-options: nosniff
last-modified: Wed, 16 Jan 2019 20:01:45 GMT
server: Golfe2
age: 1192
date: Thu, 28 Mar 2019 09:46:56 GMT
vary: Accept-Encoding
content-type: text/javascript
status: 200
cache-control: public, max-age=7200
timing-allow-origin: *
alt-svc: quic=":443"; ma=2592000; v="46,44,43,39"
content-length: 17543
expires: Thu, 28 Mar 2019 11:46:56 GMT

POST
H/1.1 200
OK batch Show response
excess.duolingo.com/ 34 B
390 B 205ms
205ms XHR
text/plain 50.19.28.89
Amazon.com

General

Check archive.org

Show headers Download Go to

Full URL: https://excess.duolingo.com/batch
Protocol: HTTP/1.1
Security: TLS 1.2, ECDHE_RSA, AES_128_GCM
Server: 50.19.28.89 Ashburn, United States, ASN14618 (AMAZON-AES - Amazon.com, Inc., US),
Reverse DNS: ec2-50-19-28-89.compute-1.amazonaws.com
Software: nginx/1.12.1 /
Resource Hash: 26503ab2f8fd7184b8f272f63557e8d0b61c9d3cb6ee042e37a4e541dc2eb615

Request headers

Pragma: no-cache
Origin: https://www.duolingo.com
Accept-Encoding: gzip, deflate, br
Host: excess.duolingo.com
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36
Content-type: application/json
Accept: */*
Cache-Control: no-cache
Referer: https://www.duolingo.com/
Connection: keep-alive
Content-Length: 772
Referer: https://www.duolingo.com/
Origin: https://www.duolingo.com
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36
Content-type: application/json

Response headers

Date: Thu, 28 Mar 2019 10:06:49 GMT
Accept-Encoding: gzip, identity
Server: nginx/1.12.1
Access-Control-Max-Age: 3600
Access-Control-Allow-Methods: POST, GET, OPTIONS
Access-Control-Allow-Origin: *
Connection: keep-alive
Access-Control-Allow-Headers: Content-Type, Access-Control-Allow-Headers, Authorization
Content-Length: 34

POST
H/1.1 200
OK batch Show response
excess.duolingo.com/ 34 B
390 B 185ms
184ms XHR
text/plain 50.19.28.89
Amazon.com

General

Check archive.org

Show headers Download Go to

Full URL: https://excess.duolingo.com/batch
Protocol: HTTP/1.1
Security: TLS 1.2, ECDHE_RSA, AES_128_GCM
Server: 50.19.28.89 Ashburn, United States, ASN14618 (AMAZON-AES - Amazon.com, Inc., US),
Reverse DNS: ec2-50-19-28-89.compute-1.amazonaws.com
Software: nginx/1.12.1 /
Resource Hash: 26503ab2f8fd7184b8f272f63557e8d0b61c9d3cb6ee042e37a4e541dc2eb615

Request headers

Pragma: no-cache
Origin: https://www.duolingo.com
Accept-Encoding: gzip, deflate, br
Host: excess.duolingo.com
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36
Content-type: application/json
Accept: */*
Cache-Control: no-cache
Referer: https://www.duolingo.com/
Connection: keep-alive
Content-Length: 828
Referer: https://www.duolingo.com/
Origin: https://www.duolingo.com
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36
Content-type: application/json

Response headers

Date: Thu, 28 Mar 2019 10:06:49 GMT
Accept-Encoding: gzip, identity
Server: nginx/1.12.1
Access-Control-Max-Age: 3600
Access-Control-Allow-Methods: POST, GET, OPTIONS
Access-Control-Allow-Origin: *
Connection: keep-alive
Access-Control-Allow-Headers: Content-Type, Access-Control-Allow-Headers, Authorization
Content-Length: 34

GET
H2

200

ga-audiences
www.google.de/ads/
Redirect Chain

https://www.google-analytics.com/r/collect?v=1&_v=j73&a=884143259&t=pageview&_s=1&dl=https%3A%2F%2Fwww.duolingo.com%2F&ul=en-us&de=UTF-8&dt=Duolingo%3A%20Learn%20Spanish%2C%20French%20and%20other%2...
https://stats.g.doubleclick.net/r/collect?v=1&aip=1&t=dc&_r=3&tid=UA-21595814-1&cid=610054846.1553767609&jid=223138269&_gid=1565395885.1553767609&gjid=2135219084&_v=j73&z=1831588292
https://www.google.com/ads/ga-audiences?v=1&aip=1&t=sr&_r=4&tid=UA-21595814-1&cid=610054846.1553767609&jid=223138269&_v=j73&z=1831588292
https://www.google.de/ads/ga-audiences?v=1&aip=1&t=sr&_r=4&tid=UA-21595814-1&cid=610054846.1553767609&jid=223138269&_v=j73&z=1831588292&slf_rd=1&random=635710912

42 B
109 B

20ms
20ms

Image
image/gif

2a00:1450:4001:815::2003
Google LLC

General

Check archive.org

Show headers Download Go to Show image

Full URL

https://www.google.de/ads/ga-audiences?v=1&aip=1&t=sr&_r=4&tid=UA-21595814-1&cid=610054846.1553767609&jid=223138269&_v=j73&z=1831588292&slf_rd=1&random=635710912

Protocol

Security

TLS 1.2, ECDHE_RSA, AES_128_GCM

Server

2a00:1450:4001:815::2003 , Ireland, ASN15169 (GOOGLE - Google LLC, 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_13_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36

Response headers

pragma: no-cache
date: Thu, 28 Mar 2019 10:06:49 GMT
x-content-type-options: nosniff
content-type: image/gif
server: cafe
p3p: policyref="https://www.googleadservices.com/pagead/p3p.xml", CP="NOI DEV PSA PSD IVA IVD OTP OUR OTR IND OTC"
status: 200
cache-control: no-cache, no-store, must-revalidate
timing-allow-origin: *
alt-svc: quic=":443"; ma=2592000; v="46,44,43,39"
content-length: 42
x-xss-protection: 0
expires: Fri, 01 Jan 1990 00:00:00 GMT

Redirect headers

pragma: no-cache
date: Thu, 28 Mar 2019 10:06:49 GMT
x-content-type-options: nosniff
server: cafe
timing-allow-origin: *
location: https://www.google.de/ads/ga-audiences?v=1&aip=1&t=sr&_r=4&tid=UA-21595814-1&cid=610054846.1553767609&jid=223138269&_v=j73&z=1831588292&slf_rd=1&random=635710912
p3p: policyref="https://www.googleadservices.com/pagead/p3p.xml", CP="NOI DEV PSA PSD IVA IVD OTP OUR OTR IND OTC"
status: 302
cache-control: no-cache, no-store, must-revalidate
content-type: text/html; charset=UTF-8
alt-svc: quic=":443"; ma=2592000; v="46,44,43,39"
content-length: 0
x-xss-protection: 0
expires: Fri, 01 Jan 1990 00:00:00 GMT

POST
H/1.1 200
OK batch Show response
excess.duolingo.com/ 34 B
390 B 172ms
171ms XHR
text/plain 34.192.142.121
Amazon.com

General

Check archive.org

Show headers Download Go to

Full URL: https://excess.duolingo.com/batch
Protocol: HTTP/1.1
Security: TLS 1.2, ECDHE_RSA, AES_128_GCM
Server: 34.192.142.121 Ashburn, United States, ASN14618 (AMAZON-AES - Amazon.com, Inc., US),
Reverse DNS: ec2-34-192-142-121.compute-1.amazonaws.com
Software: nginx/1.12.1 /
Resource Hash: 26503ab2f8fd7184b8f272f63557e8d0b61c9d3cb6ee042e37a4e541dc2eb615

Request headers

Pragma: no-cache
Origin: https://www.duolingo.com
Accept-Encoding: gzip, deflate, br
Host: excess.duolingo.com
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36
Content-type: application/json
Accept: */*
Cache-Control: no-cache
Referer: https://www.duolingo.com/
Connection: keep-alive
Content-Length: 820
Referer: https://www.duolingo.com/
Origin: https://www.duolingo.com
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36
Content-type: application/json

Response headers

Date: Thu, 28 Mar 2019 10:06:49 GMT
Accept-Encoding: gzip, identity
Server: nginx/1.12.1
Access-Control-Max-Age: 3600
Access-Control-Allow-Methods: POST, GET, OPTIONS
Access-Control-Allow-Origin: *
Connection: keep-alive
Access-Control-Allow-Headers: Content-Type, Access-Control-Allow-Headers, Authorization
Content-Length: 34

POST
H/1.1 200
OK batch Show response
excess.duolingo.com/ 34 B
390 B 241ms
174ms XHR
text/plain 50.19.28.89
Amazon.com

General

Check archive.org

Show headers Download Go to

Full URL: https://excess.duolingo.com/batch
Protocol: HTTP/1.1
Security: TLS 1.2, ECDHE_RSA, AES_128_GCM
Server: 50.19.28.89 Ashburn, United States, ASN14618 (AMAZON-AES - Amazon.com, Inc., US),
Reverse DNS: ec2-50-19-28-89.compute-1.amazonaws.com
Software: nginx/1.12.1 /
Resource Hash: 26503ab2f8fd7184b8f272f63557e8d0b61c9d3cb6ee042e37a4e541dc2eb615

Request headers

Pragma: no-cache
Origin: https://www.duolingo.com
Accept-Encoding: gzip, deflate, br
Host: excess.duolingo.com
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36
Content-type: application/json
Accept: */*
Cache-Control: no-cache
Referer: https://www.duolingo.com/
Connection: keep-alive
Content-Length: 793
Referer: https://www.duolingo.com/
Origin: https://www.duolingo.com
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36
Content-type: application/json

Response headers

Date: Thu, 28 Mar 2019 10:06:49 GMT
Accept-Encoding: gzip, identity
Server: nginx/1.12.1
Access-Control-Max-Age: 3600
Access-Control-Allow-Methods: POST, GET, OPTIONS
Access-Control-Allow-Origin: *
Connection: keep-alive
Access-Control-Allow-Headers: Content-Type, Access-Control-Allow-Headers, Authorization
Content-Length: 34

POST
H2 200 collector Show response
collector-pxasqjfz9w.perimeterx.net/api/v1/ 366 B
511 B 27ms
27ms XHR
application/json 35.190.10.112
Google LLC

General

Check archive.org

Show headers Download Go to

Full URL: https://collector-pxasqjfz9w.perimeterx.net/api/v1/collector
Requested by: Host: d35aaqx5ub95lt.cloudfront.net
URL: https://d35aaqx5ub95lt.cloudfront.net/js/vendor-a49663e3.js
Protocol: H2
Security: TLS 1.2, ECDHE_RSA, AES_128_GCM
Server: 35.190.10.112 Mountain View, United States, ASN15169 (GOOGLE - Google LLC, US),
Reverse DNS: 112.10.190.35.bc.googleusercontent.com
Software: /
Resource Hash: 6653d36cd63ff0ba5de7c5b4eea75d4cf968644c7208867253c6f8f075b6dc92

Request headers

Referer: https://www.duolingo.com/
Origin: https://www.duolingo.com
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36
Content-type: application/x-www-form-urlencoded

Response headers

date: Thu, 28 Mar 2019 10:06:49 GMT
via: 1.1 google
status: 200
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

Verdicts & Comments Add Verdict or Comment

37 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.

7 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
www.duolingo.com/	1970-01-18 23:46:12	Name: AWSALB Value: xdKs8AZrCVzGMsufMbKXpidgFl5u3UwjQhvD+6FfvC7AAS9HrKWTybDZGYSSVDWt+xFbtue9eVwcq7hxy6O5lsxHYVTybgRbeUL14dz0mjhMCKUOCpVXTrRXrAHF
.duolingo.com/	1970-01-19 08:21:43	Name: lu Value: https://www.duolingo.com/
.duolingo.com/	1970-01-19 08:21:43	Name: lp Value: splash
www.duolingo.com/	1970-01-19 08:21:43	Name: _pxhd Value: e6d453b0ef459ec25bd00e382add182477d489d0de2add5a2c211dea65695c60:32b2bf11-5141-11e9-ba7d-fd3bd5b7c341
www.duolingo.com/	1969-12-31 23:59:59	Name: wuuid Value: a33e0301-3c5f-4cdf-ae71-0d8d0614cc1a
.duolingo.com/	1970-01-19 08:21:43	Name: lang Value: en
.duolingo.com/	1970-01-19 08:21:43	Name: logged_out_uuid Value: 8b89eb8d-532b-4d53-8b97-250bae99be7d

1 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
console-api	log	URL: https://d35aaqx5ub95lt.cloudfront.net/js/vendor-a49663e3.js(Line 53) Message: localStorage unavailable! Falling back to empty object

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.

client.perimeterx.net
collector-pxasqjfz9w.perimeterx.net
d35aaqx5ub95lt.cloudfront.net
d7mj4aqfscim2.cloudfront.net
excess.duolingo.com
stats.g.doubleclick.net
www.duolingo.com
www.google-analytics.com
www.google.com
www.google.de
www.googletagmanager.com
13.35.254.106
151.101.2.110
2600:9000:200c:3400:7:60cd:e840:21
2600:9000:200c:9e00:7:60cd:e840:21
2a00:1450:4001:815::2003
2a00:1450:4001:817::2004
2a00:1450:4001:81e::200e
2a00:1450:4001:820::2008
2a00:1450:400c:c0a::9b
34.192.142.121
35.190.10.112
50.19.28.89
54.88.115.88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www.duolingo.com Open in urlscan Pro 54.88.115.88 Public Scan

Summary

urlscan.io Verdict: No classification

Domain & IP information

Screenshot Live screenshot Full Image

Detected technologies

Page Statistics

32 Requests

100 %HTTPS

54 %IPv6

8 Domains

11 Subdomains

11 IPs

2 Countries

834 kBTransfer

2994 kBSize

7 Cookies

45 Outgoing links

Redirected requests

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

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Request headers

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

Screenshot
Live screenshot

Full Image

32
Requests

100 %
HTTPS

54 %
IPv6

8
Domains

11
Subdomains

11
IPs

2
Countries

834 kB
Transfer

2994 kB
Size

7
Cookies

32 HTTP transactions
0 data transactions