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

URL:
https://www.duolingo.com/
Submission: On March 08 via manual (March 8th 2019, 6:55:03 pm UTC) from CA

Summary HTTP 38 Redirects Links 45 Behaviour Indicators

Summary

This website contacted 10 IPs in 2 countries across 8 domains to perform 38 HTTP transactions. The main IP is 52.5.127.99, 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	52.5.127.99 52.5.127.99	14618 (AMAZON-AES) (AMAZON-AES - Amazon.com)
11	2600:9000:200... 2600:9000:200c:200:7:60cd:e840:21	16509 (AMAZON-02) (AMAZON-02 - Amazon.com)
1	2a00:1450:400... 2a00:1450:4001:808::2008	15169 (GOOGLE) (GOOGLE - Google LLC)
1	151.101.2.110 151.101.2.110	54113 (FASTLY) (FASTLY - Fastly)
1	13.35.254.194 13.35.254.194	16509 (AMAZON-02) (AMAZON-02 - Amazon.com)
2	2600:9000:200... 2600:9000:200c:6e00:7:60cd:e840:21	16509 (AMAZON-02) (AMAZON-02 - Amazon.com)
12	52.204.245.71 52.204.245.71	14618 (AMAZON-AES) (AMAZON-AES - Amazon.com)
4	35.190.10.112 35.190.10.112	15169 (GOOGLE) (GOOGLE - Google LLC)
1 2	2a00:1450:400... 2a00:1450:4001:816::200e	15169 (GOOGLE) (GOOGLE - Google LLC)
1 1	2a00:1450:400... 2a00:1450:400c:c0b::9c	15169 (GOOGLE) (GOOGLE - Google LLC)
1 1	2a00:1450:400... 2a00:1450:4001:824::2004	15169 (GOOGLE) (GOOGLE - Google LLC)
1	2a00:1450:400... 2a00:1450:4001:820::2003	15169 (GOOGLE) (GOOGLE - Google LLC)
38	10

4 52.5.127.99 (Ashburn, United States)

ASN14618 (AMAZON-AES - Amazon.com, Inc., US)
PTR: ec2-52-5-127-99.compute-1.amazonaws.com

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

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

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

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

1 2a00:1450:4001:808::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 13.35.254.194 (Seattle, United States)

ASN16509 (AMAZON-02 - Amazon.com, Inc., US)
PTR: server-13-35-254-194.fra6.r.cloudfront.net

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

2 2600:9000:200c:6e00:7:60cd:e840:21 (United States)

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

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

12 52.204.245.71 (Ashburn, United States)

ASN14618 (AMAZON-AES - Amazon.com, Inc., US)
PTR: ec2-52-204-245-71.compute-1.amazonaws.com

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

4 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 2a00:1450:4001:816::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:c0b::9c (Ireland) 1 redirects

ASN15169 (GOOGLE - Google LLC, US)

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

1 2a00:1450:4001:824::2004 (Ireland) 1 redirects

ASN15169 (GOOGLE - Google LLC, US)

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

1 2a00:1450:4001:820::2003 (Ireland)

ASN15169 (GOOGLE - Google LLC, US)

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

	Apex Domain Subdomains	Transfer
16	duolingo.com www.duolingo.com excess.duolingo.com	14 KB
14	cloudfront.net d35aaqx5ub95lt.cloudfront.net d7mj4aqfscim2.cloudfront.net	850 KB
5	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	364 B
1	doubleclick.net 1 redirects stats.g.doubleclick.net	160 B
1	googletagmanager.com www.googletagmanager.com	24 KB
38	8

	Domain	Requested by
13	d35aaqx5ub95lt.cloudfront.net	www.duolingo.com d35aaqx5ub95lt.cloudfront.net
12	excess.duolingo.com	d35aaqx5ub95lt.cloudfront.net
4	collector-pxasqjfz9w.perimeterx.net	d35aaqx5ub95lt.cloudfront.net
4	www.duolingo.com	d35aaqx5ub95lt.cloudfront.net
2	www.google-analytics.com	1 redirects www.googletagmanager.com
1	www.google.de	www.duolingo.com
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
38	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	`2019-02-28` - `2019-04-14`	a month	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: BBFBC2956848C6995EC54107B94E60C3
Requests: 38 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

38
Requests

100 %
HTTPS

58 %
IPv6

8
Domains

11
Subdomains

10
IPs

2
Countries

931 kB
Transfer

3202 kB
Size

12
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=289982497&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=1792292951&gjid=1088170102&cid=1427489995.1552071289&tid=UA-21595814-1&_gid=1424188747.1552071289&_r=1&gtm=2ou2q1&z=296985673 HTTP 302
https://stats.g.doubleclick.net/r/collect?v=1&aip=1&t=dc&_r=3&tid=UA-21595814-1&cid=1427489995.1552071289&jid=1792292951&_gid=1424188747.1552071289&gjid=1088170102&_v=j73&z=296985673 HTTP 302
https://www.google.com/ads/ga-audiences?v=1&aip=1&t=sr&_r=4&tid=UA-21595814-1&cid=1427489995.1552071289&jid=1792292951&_v=j73&z=296985673 HTTP 302
https://www.google.de/ads/ga-audiences?v=1&aip=1&t=sr&_r=4&tid=UA-21595814-1&cid=1427489995.1552071289&jid=1792292951&_v=j73&z=296985673&slf_rd=1&random=2284596647

38 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 450ms
204ms Document
text/html 52.5.127.99
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

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

Reverse DNS

ec2-52-5-127-99.compute-1.amazonaws.com

Software

duo-api /

Resource Hash

bd2d5c95b56af10519ace3bc7aeb219fe7a066f6bbf965ef8d7793bb924d5ed0

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: Fri, 08 Mar 2019 18:54:47 GMT
content-type: text/html; charset=UTF-8
set-cookie: AWSALB=BVNT78beGU8ojrXmCQTgiz1J2RMww2FUwu3E7Dgc2swPQFNgQ4C/nk1GsRL+w5OxRGRBjcJUsSpORwCqSZeLBy2OCijdvjkidF1Obxn3eeXe3Y2RHIzNXuCIMGAU; Expires=Fri, 15 Mar 2019 18:54:47 GMT; Path=/ logged_out_uuid=8e15bda7-d28d-4dbe-bf07-43cfb604893d; Domain=.duolingo.com; Max-Age=31536000; Path=/; expires=Sat, 07-Mar-2020 18:54:47 GMT lang=en; Domain=.duolingo.com; Max-Age=31536000; Path=/; expires=Sat, 07-Mar-2020 18:54:47 GMT wuuid=7a0b4f53-7248-4b21-af81-ec5233776ad7 _pxhd=68a5a413d244e3177d0a948ee27b4f5c9a63d5cb34c51ab10e120ea02538fed9:a53687b1-41d3-11e9-923f-f33e504e0f5c; path=/; expires=Sat, 07 Mar 2020 18:54:47 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: ffff69cb5c82b11e10b8
x-ws: UK
x-runtime: 0.04634
x-ipcountry: US
content-encoding: gzip
x-envoy-upstream-service-time: 92
x-duo-request-host: www.duolingo.com

GET
H2 200 ltr-1342bc25.css
d35aaqx5ub95lt.cloudfront.net/css/ 358 KB
68 KB 52ms
8ms Stylesheet
text/css 2600:9000:200c:200:7:60cd:e840:21
Amazon.com

General

Check archive.org

Show headers Download Go to

Full URL: https://d35aaqx5ub95lt.cloudfront.net/css/ltr-1342bc25.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:200:7:60cd:e840:21 , United States, ASN16509 (AMAZON-02 - Amazon.com, Inc., US),
Reverse DNS
Software: AmazonS3 /
Resource Hash: 3f389b0071db90b7eed840a3b886b0c29bfecd19a7c3e9b7e74a0c0ced22c9d8

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: Thu, 07 Mar 2019 16:15:13 GMT
content-encoding: gzip
last-modified: Thu, 07 Mar 2019 16:14:29 GMT
server: AmazonS3
age: 95975
etag: "7899515cc067512f37012f954de98164"
x-cache: Hit from cloudfront
content-type: text/css
status: 200
cache-control: max-age=315360000
accept-ranges: bytes
content-length: 69706
via: 1.1 7e6ac12144acebd1fc302708f2ecfad6.cloudfront.net (CloudFront)
x-amz-cf-id: -SYNasabvKfz2x4xKgoJ51u3G90SfilT9AvzA897qXB9gGDpFPSaxw==

GET
H2 200 vendor-e96957dd.js Show response
d35aaqx5ub95lt.cloudfront.net/js/ 1 MB
350 KB 70ms
26ms Script
text/javascript 2600:9000:200c:200:7:60cd:e840:21
Amazon.com

General

Check archive.org

Show headers Download Go to

Full URL: https://d35aaqx5ub95lt.cloudfront.net/js/vendor-e96957dd.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:200:7:60cd:e840:21 , United States, ASN16509 (AMAZON-02 - Amazon.com, Inc., US),
Reverse DNS
Software: AmazonS3 /
Resource Hash: ad2061b3589dd8bf7ca1157459f5b0bf2eed8fd605404a3d9085618383528387

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, 19 Dec 2018 16:56:47 GMT
content-encoding: gzip
last-modified: Wed, 19 Dec 2018 16:56:34 GMT
server: AmazonS3
age: 6832681
etag: "8944ff29a274a2f86190abc3fd765f69"
x-cache: Hit from cloudfront
content-type: text/javascript
status: 200
cache-control: max-age=315360000
accept-ranges: bytes
content-length: 357724
via: 1.1 7e6ac12144acebd1fc302708f2ecfad6.cloudfront.net (CloudFront)
x-amz-cf-id: ZJE_LPm0MZc4FifY2KhZM2NYvZAD5KHXboIICdZGt272gLon0abw1A==

GET
H2 200 en-61d495d9.js Show response
d35aaqx5ub95lt.cloudfront.net/strings/ 59 KB
23 KB 69ms
26ms Script
text/javascript 2600:9000:200c:200:7:60cd:e840:21
Amazon.com

General

Check archive.org

Show headers Download Go to

Full URL: https://d35aaqx5ub95lt.cloudfront.net/strings/en-61d495d9.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:200:7:60cd:e840:21 , United States, ASN16509 (AMAZON-02 - Amazon.com, Inc., US),
Reverse DNS
Software: AmazonS3 /
Resource Hash: 1896b244edb8e72b518250567b5a49eb1a640e664e1dfe4e32a826b127b3359c

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: Fri, 01 Mar 2019 17:01:51 GMT
content-encoding: gzip
last-modified: Fri, 01 Mar 2019 17:00:59 GMT
server: AmazonS3
age: 611577
etag: "680f844e2a2a63a6db763ec3d958e0d1"
x-cache: Hit from cloudfront
content-type: text/javascript
status: 200
cache-control: max-age=315360000
accept-ranges: bytes
content-length: 22746
via: 1.1 7e6ac12144acebd1fc302708f2ecfad6.cloudfront.net (CloudFront)
x-amz-cf-id: YIC0p5qOCwUbIx1oaSuFYmb7-WzG5-P_67fSOnbPzEOWzqyJL1a30w==

GET
H2 200 app-f75582f6.js Show response
d35aaqx5ub95lt.cloudfront.net/js/ 1 MB
258 KB 59ms
15ms Script
text/javascript 2600:9000:200c:200:7:60cd:e840:21
Amazon.com

General

Check archive.org

Show headers Download Go to

Full URL: https://d35aaqx5ub95lt.cloudfront.net/js/app-f75582f6.js
Requested by: Host: www.duolingo.com
URL: https://www.duolingo.com/
Protocol: H2
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Amazon.com

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Full URL: https://excess.duolingo.com/batch
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URL: https://d35aaqx5ub95lt.cloudfront.net/js/vendor-e96957dd.js
Protocol: HTTP/1.1
Security: TLS 1.2, ECDHE_RSA, AES_128_GCM
Server: 52.204.245.71 Ashburn, United States, ASN14618 (AMAZON-AES - Amazon.com, Inc., US),
Reverse DNS: ec2-52-204-245-71.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: Fri, 08 Mar 2019 18:54:48 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 153ms
153ms XHR
application/json 52.5.127.99
Amazon.com

General

Check archive.org

Show headers Download Go to

Full URL

https://www.duolingo.com/2017-06-30/config?_=1552071288350

Requested by

Host: d35aaqx5ub95lt.cloudfront.net
URL: https://d35aaqx5ub95lt.cloudfront.net/js/vendor-e96957dd.js

Protocol

Security

TLS 1.2, ECDHE_RSA, AES_128_GCM

Server

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

Reverse DNS

ec2-52-5-127-99.compute-1.amazonaws.com

Software

duo-api /

Resource Hash

6444cd50472599eb4c2123b58e8478b6655e345f19c6c5742e81aca159300b18

Security Headers

Name	Value
X-Frame-Options	SAMEORIGIN

Request headers

:path: /2017-06-30/config?_=1552071288350
pragma: no-cache
cookie: AWSALB=BVNT78beGU8ojrXmCQTgiz1J2RMww2FUwu3E7Dgc2swPQFNgQ4C/nk1GsRL+w5OxRGRBjcJUsSpORwCqSZeLBy2OCijdvjkidF1Obxn3eeXe3Y2RHIzNXuCIMGAU; logged_out_uuid=8e15bda7-d28d-4dbe-bf07-43cfb604893d; lang=en; wuuid=7a0b4f53-7248-4b21-af81-ec5233776ad7; _pxhd=68a5a413d244e3177d0a948ee27b4f5c9a63d5cb34c51ab10e120ea02538fed9:a53687b1-41d3-11e9-923f-f33e504e0f5c; lu=https://www.duolingo.com/; lp=splash
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: Fri, 08 Mar 2019 18:54:48 GMT
content-encoding: gzip
x-ws: UK
x-tid: ffff74e75c82b99402e7
surrogate-control: no-store
status: 200
x-envoy-upstream-service-time: 46
x-duo-request-host: www.duolingo.com
x-runtime: 0.00451
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=Sz8Uy9X5Cm90LNSNxlrjw5KrEUvfUlxIoPW5HUWBUNUTmmBYd/Fq8hFUI7HffrRGoDP+3NtxeGrvGVY/bR+DAy47VHxzXRBVVRVNEmkbIIMgYWFQEL6dYXm7eH1Y; Expires=Fri, 15 Mar 2019 18:54:48 GMT; Path=/
expires: 0

POST
H2 201 tracking-status Show response
www.duolingo.com/2017-06-30/ 2 B
841 B 168ms
168ms XHR
application/json 52.5.127.99
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-e96957dd.js

Protocol

Security

TLS 1.2, ECDHE_RSA, AES_128_GCM

Server

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

Reverse DNS

ec2-52-5-127-99.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
cookie: AWSALB=BVNT78beGU8ojrXmCQTgiz1J2RMww2FUwu3E7Dgc2swPQFNgQ4C/nk1GsRL+w5OxRGRBjcJUsSpORwCqSZeLBy2OCijdvjkidF1Obxn3eeXe3Y2RHIzNXuCIMGAU; logged_out_uuid=8e15bda7-d28d-4dbe-bf07-43cfb604893d; lang=en; wuuid=7a0b4f53-7248-4b21-af81-ec5233776ad7; _pxhd=68a5a413d244e3177d0a948ee27b4f5c9a63d5cb34c51ab10e120ea02538fed9:a53687b1-41d3-11e9-923f-f33e504e0f5c; lu=https://www.duolingo.com/; lp=splash
origin: https://www.duolingo.com
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: Fri, 08 Mar 2019 18:54:48 GMT
x-ws: UK
access-control-allow-origin: https://www.duolingo.com
x-tid: ffff69415c82b0c209a3
surrogate-control: no-store
status: 201
access-control-max-age: 1728000
x-envoy-upstream-service-time: 61
x-duo-request-host: www.duolingo.com
content-length: 2
x-runtime: 0.01872
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
set-cookie: AWSALB=VljLWkZTtVD8gyoNFcReJ6G3mMo0oqWBVf5k9R7oM5T/7Lf2tUua9VijbCvJHtpE04ymLapSF6tRrD/mveJ6Wm9Jp3S2hmYby5mJXI9r8sVyzsCbD5yme5Y8WB4K; Expires=Fri, 15 Mar 2019 18:54:48 GMT; Path=/
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 531ms
105ms XHR
text/plain 52.204.245.71
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-e96957dd.js
Protocol: HTTP/1.1
Security: TLS 1.2, ECDHE_RSA, AES_128_GCM
Server: 52.204.245.71 Ashburn, United States, ASN14618 (AMAZON-AES - Amazon.com, Inc., US),
Reverse DNS: ec2-52-204-245-71.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: Fri, 08 Mar 2019 18:54:48 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 529ms
104ms XHR
text/plain 52.204.245.71
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-e96957dd.js
Protocol: HTTP/1.1
Security: TLS 1.2, ECDHE_RSA, AES_128_GCM
Server: 52.204.245.71 Ashburn, United States, ASN14618 (AMAZON-AES - Amazon.com, Inc., US),
Reverse DNS: ec2-52-204-245-71.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: Fri, 08 Mar 2019 18:54:48 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 538ms
109ms XHR
text/plain 52.204.245.71
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-e96957dd.js
Protocol: HTTP/1.1
Security: TLS 1.2, ECDHE_RSA, AES_128_GCM
Server: 52.204.245.71 Ashburn, United States, ASN14618 (AMAZON-AES - Amazon.com, Inc., US),
Reverse DNS: ec2-52-204-245-71.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: Fri, 08 Mar 2019 18:54:48 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 568ms
113ms XHR
text/plain 52.204.245.71
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-e96957dd.js
Protocol: HTTP/1.1
Security: TLS 1.2, ECDHE_RSA, AES_128_GCM
Server: 52.204.245.71 Ashburn, United States, ASN14618 (AMAZON-AES - Amazon.com, Inc., US),
Reverse DNS: ec2-52-204-245-71.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: Fri, 08 Mar 2019 18:54:48 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 180ms
180ms XHR
application/json 52.5.127.99
Amazon.com

General

Check archive.org

Show headers Download Go to

Full URL

https://www.duolingo.com/api/1/courses/list?_=1552071288351

Requested by

Host: d35aaqx5ub95lt.cloudfront.net
URL: https://d35aaqx5ub95lt.cloudfront.net/js/vendor-e96957dd.js

Protocol

Security

TLS 1.2, ECDHE_RSA, AES_128_GCM

Server

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

Reverse DNS

ec2-52-5-127-99.compute-1.amazonaws.com

Software

duo-api /

Resource Hash

ef011f52ea79fbc7d98e1e106c10db02e6b41a667c46a13efd95ed9c0f9b4912

Security Headers

Name	Value
X-Frame-Options	SAMEORIGIN

Request headers

:path: /api/1/courses/list?_=1552071288351
pragma: no-cache
cookie: AWSALB=BVNT78beGU8ojrXmCQTgiz1J2RMww2FUwu3E7Dgc2swPQFNgQ4C/nk1GsRL+w5OxRGRBjcJUsSpORwCqSZeLBy2OCijdvjkidF1Obxn3eeXe3Y2RHIzNXuCIMGAU; logged_out_uuid=8e15bda7-d28d-4dbe-bf07-43cfb604893d; lang=en; wuuid=7a0b4f53-7248-4b21-af81-ec5233776ad7; _pxhd=68a5a413d244e3177d0a948ee27b4f5c9a63d5cb34c51ab10e120ea02538fed9:a53687b1-41d3-11e9-923f-f33e504e0f5c; lu=https://www.duolingo.com/; lp=splash
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, 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: Fri, 08 Mar 2019 18:54:48 GMT
content-encoding: gzip
x-ws: UK
x-tid: ffff666c5c82aeb70a88
surrogate-control: no-store
status: 200
x-envoy-upstream-service-time: 70
x-duo-request-host: www.duolingo.com
x-runtime: 0.02310
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=/neTQsle+Cn7Jlv0FDblik4kzcyqk63PSRPXSXK+D/aCvgm84bhYkRyrVvqn5cQzYs3ClEFV5FGiuz2XZMtVrqbCB/7KHVrNh69sZTkDWMfd31tam7GjmpWzl0ul; Expires=Fri, 15 Mar 2019 18:54:48 GMT; Path=/
expires: 0

OPTIONS
H/1.1 200
OK batch Show response
excess.duolingo.com/ 0
395 B 582ms
117ms XHR
text/plain 52.204.245.71
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-e96957dd.js
Protocol: HTTP/1.1
Security: TLS 1.2, ECDHE_RSA, AES_128_GCM
Server: 52.204.245.71 Ashburn, United States, ASN14618 (AMAZON-AES - Amazon.com, Inc., US),
Reverse DNS: ec2-52-204-245-71.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: Fri, 08 Mar 2019 18:54:48 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/ 536 B
837 B 94ms
40ms 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-e96957dd.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: edc38c29623f63e7fd430f32825eb0db93060b79cee426b18287a12c54749ab7

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: Fri, 08 Mar 2019 18:54:47 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: 536

GET
H2 200 analytics.js Show response
www.google-analytics.com/ 43 KB
17 KB 6ms
6ms Script
text/javascript 2a00:1450:4001:816::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

2a00:1450:4001:816::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: 1393
date: Fri, 08 Mar 2019 18:31:35 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: Fri, 08 Mar 2019 20:31:35 GMT

GET
H2

200

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

https://www.google-analytics.com/r/collect?v=1&_v=j73&a=289982497&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=1427489995.1552071289&jid=1792292951&_gid=1424188747.1552071289&gjid=1088170102&_v=j73&z=296985673
https://www.google.com/ads/ga-audiences?v=1&aip=1&t=sr&_r=4&tid=UA-21595814-1&cid=1427489995.1552071289&jid=1792292951&_v=j73&z=296985673
https://www.google.de/ads/ga-audiences?v=1&aip=1&t=sr&_r=4&tid=UA-21595814-1&cid=1427489995.1552071289&jid=1792292951&_v=j73&z=296985673&slf_rd=1&random=2284596647

42 B
109 B

20ms
19ms

Image
image/gif

2a00:1450:4001:820::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=1427489995.1552071289&jid=1792292951&_v=j73&z=296985673&slf_rd=1&random=2284596647

Requested by

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

Protocol

Security

TLS 1.2, ECDHE_RSA, AES_128_GCM

Server

2a00:1450:4001:820::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	1; mode=block

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: Fri, 08 Mar 2019 18:54:48 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: 1; mode=block
expires: Fri, 01 Jan 1990 00:00:00 GMT

Redirect headers

pragma: no-cache
date: Fri, 08 Mar 2019 18:54:48 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=1427489995.1552071289&jid=1792292951&_v=j73&z=296985673&slf_rd=1&random=2284596647
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: 1; mode=block
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 221ms
221ms XHR
text/plain 52.204.245.71
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: 52.204.245.71 Ashburn, United States, ASN14618 (AMAZON-AES - Amazon.com, Inc., US),
Reverse DNS: ec2-52-204-245-71.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: 853
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: Fri, 08 Mar 2019 18:54:49 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 131ms
130ms XHR
text/plain 52.204.245.71
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: 52.204.245.71 Ashburn, United States, ASN14618 (AMAZON-AES - Amazon.com, Inc., US),
Reverse DNS: ec2-52-204-245-71.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: 805
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: Fri, 08 Mar 2019 18:54:48 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 154ms
153ms XHR
text/plain 52.204.245.71
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: 52.204.245.71 Ashburn, United States, ASN14618 (AMAZON-AES - Amazon.com, Inc., US),
Reverse DNS: ec2-52-204-245-71.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: 861
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: Fri, 08 Mar 2019 18:54:48 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 189ms
189ms XHR
text/plain 52.204.245.71
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: 52.204.245.71 Ashburn, United States, ASN14618 (AMAZON-AES - Amazon.com, Inc., US),
Reverse DNS: ec2-52-204-245-71.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: 902
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: Fri, 08 Mar 2019 18:54:49 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 196ms
195ms XHR
text/plain 52.204.245.71
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: 52.204.245.71 Ashburn, United States, ASN14618 (AMAZON-AES - Amazon.com, Inc., US),
Reverse DNS: ec2-52-204-245-71.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: 903
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: Fri, 08 Mar 2019 18:54:49 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 163ms
163ms XHR
text/plain 52.204.245.71
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: 52.204.245.71 Ashburn, United States, ASN14618 (AMAZON-AES - Amazon.com, Inc., US),
Reverse DNS: ec2-52-204-245-71.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: 826
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: Fri, 08 Mar 2019 18:54:49 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
510 B 36ms
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-e96957dd.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: cbeb16fa081d50a153064a228d911dce20823d1692c5b216d78b58652d45eb2e

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: Fri, 08 Mar 2019 18:54:48 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: 366

POST
H2 200 collector Show response
collector-pxasqjfz9w.perimeterx.net/api/v1/ 366 B
506 B 29ms
28ms 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-e96957dd.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: 679516682d8214b39a42eed03470b8b7935151fb3d65d93fa39ffe4f70cc3b55

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: Fri, 08 Mar 2019 18:54:49 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

POST
H2 200 collector Show response
collector-pxasqjfz9w.perimeterx.net/api/v1/ 366 B
506 B 38ms
37ms 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-e96957dd.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: d505eacf7add0a05c10d64b9446beee4c1916cc19c2c4a85f38bd83adc45a3a1

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: Fri, 08 Mar 2019 18:54:52 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.

12 Cookies

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

Domain/Path	Expires	Name / Value
.www.duolingo.com/	1970-01-18 23:07:51	Name: _gat_gtag_UA_21595814_1 Value: 1
www.duolingo.com/	1969-12-31 23:59:59	Name: wuuid Value: 7a0b4f53-7248-4b21-af81-ec5233776ad7
.duolingo.com/	1970-01-19 12:05:27	Name: _pxvid Value: a5add7d5-41d3-11e9-a2c0-0242ac120010
www.duolingo.com/	1970-01-18 23:17:56	Name: AWSALB Value: kukeIKfBZYOUfb0NdnQG5ISvXlT0zzWCh14nyBOiRLPScKLVPJWBl8Gi16Qn6BcLdMnnN6sUZjQq2DYJyTS+MPFhIkVm90g6N5vGUjT8Q7zZ0uFxuYMiOyNYwhzs
.duolingo.com/	1970-01-19 07:53:27	Name: lp Value: splash
.www.duolingo.com/	1970-01-19 16:39:03	Name: _ga Value: GA1.3.1427489995.1552071289
.duolingo.com/	1970-01-18 23:07:51	Name: _px3 Value: 698049ad3d89df3835f0fcc43db1b8232bbfc3c985a777725e91e6a0e91ebb7f:G14u8IBvS4aPgw93dyQhFj3KnVfCvXsIXpUYa9cY5h3upGdxIoqdM1kZBGmjgXV7WF/EsP/ufZ72g4Ckjy8KAw==:1000:i9KsfHGhoC+A4X5C8c0Yy2wiJ1iHmxcpDXRpXa6a7AkevLVnd39eGY+udaKhgaX5iVIEQkUVpzXCRHVY7qhtUWVqgyymUUJ+oz62LxSrH/LN0bVc3RESen9z3Hxa8OVlfQhdeQCOPnQ0LALhCa3nbOIJECd8Drs5ZoTQpZvYRC8=
.duolingo.com/	1970-01-19 07:53:27	Name: lu Value: https://www.duolingo.com/
www.duolingo.com/	1970-01-19 07:53:27	Name: _pxhd Value: 68a5a413d244e3177d0a948ee27b4f5c9a63d5cb34c51ab10e120ea02538fed9:a53687b1-41d3-11e9-923f-f33e504e0f5c
.duolingo.com/	1970-01-19 07:53:27	Name: lang Value: en
.www.duolingo.com/	1970-01-18 23:09:17	Name: _gid Value: GA1.3.1424188747.1552071289
.duolingo.com/	1970-01-19 07:53:27	Name: logged_out_uuid Value: 8e15bda7-d28d-4dbe-bf07-43cfb604893d

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-e96957dd.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
13.35.254.194
151.101.2.110
2600:9000:200c:200:7:60cd:e840:21
2600:9000:200c:6e00:7:60cd:e840:21
2a00:1450:4001:808::2008
2a00:1450:4001:816::200e
2a00:1450:4001:820::2003
2a00:1450:4001:824::2004
2a00:1450:400c:c0b::9c
35.190.10.112
52.204.245.71
52.5.127.99
1845e557c54d4a182caca87a342b73a5c24bca80770893bb59ea95abf8cc9370
1896b244edb8e72b518250567b5a49eb1a640e664e1dfe4e32a826b127b3359c
26503ab2f8fd7184b8f272f63557e8d0b61c9d3cb6ee042e37a4e541dc2eb615
2cf647948337600dbe8558d968ba52007326132a72245429a5fa9c0ba3a46eda
3a385b9e624c03a915c93d61644b1229c044e35c5f6caed18c450a8aea0117f2
3e552578c7d450b023f2cd9d28f830be4335c3acc6c4ab6dadda0769f09e5f22
3f389b0071db90b7eed840a3b886b0c29bfecd19a7c3e9b7e74a0c0ced22c9d8
44136fa355b3678a1146ad16f7e8649e94fb4fc21fe77e8310c060f61caaff8a
6444cd50472599eb4c2123b58e8478b6655e345f19c6c5742e81aca159300b18
679516682d8214b39a42eed03470b8b7935151fb3d65d93fa39ffe4f70cc3b55
77a3b1dd9378c250f70b7aff31ae7bb0a19461ccf562a3088036dace4075eae7
79fec0ff6746c9a6b2c329425b4e71b9fa48f77a40aab01b33acec29f46e636e
87104700fcd29a67821b63c8b2468fa5f473f262d0d62ee50987080e4b16b101
8ee40c70098da30794ac565c9a08ba8c379f194988525c7f65824f74a3eb1a08
ad2061b3589dd8bf7ca1157459f5b0bf2eed8fd605404a3d9085618383528387
bd2d5c95b56af10519ace3bc7aeb219fe7a066f6bbf965ef8d7793bb924d5ed0
bfef53b4ea41788bf831933fb060a3a3f276d9a3f0fa740f6b19835844e94e40
cbeb16fa081d50a153064a228d911dce20823d1692c5b216d78b58652d45eb2e
d505eacf7add0a05c10d64b9446beee4c1916cc19c2c4a85f38bd83adc45a3a1
d5289bc1963fc7b88dbea3b9400d49c9f4771a4afb0bfe678851a37227923085
e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
ec078f79e27c3ad2f41eb5340fa93539fa32eaad4eb193ada5c23a497d3b939c
edc38c29623f63e7fd430f32825eb0db93060b79cee426b18287a12c54749ab7
ef011f52ea79fbc7d98e1e106c10db02e6b41a667c46a13efd95ed9c0f9b4912
ef1955ae757c8b966c83248350331bd3a30f658ced11f387f8ebf05ab3368629
f279610abe92e4096c2332b31a63f834047ac1bd24fb1acb975e7e0ad6e5dbde
f62ed07f690717c5fdec394250dfe5af0d8b8142f221513f405ab9e8c107486a
fd1612a6ac8ee33b22fc37cf39232795603b55e07aec7b71369af2815821eb17

www.duolingo.com Open in urlscan Pro 52.5.127.99 Public Scan

Summary

urlscan.io Verdict: No classification

Domain & IP information

Screenshot Live screenshot Full Image

Detected technologies

Page Statistics

38 Requests

100 %HTTPS

58 %IPv6

8 Domains

11 Subdomains

10 IPs

2 Countries

931 kBTransfer

3202 kBSize

12 Cookies

45 Outgoing links

Redirected requests

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

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

Screenshot
Live screenshot

Full Image

38
Requests

100 %
HTTPS

58 %
IPv6

8
Domains

11
Subdomains

10
IPs

2
Countries

931 kB
Transfer

3202 kB
Size

12
Cookies

38 HTTP transactions
0 data transactions