Submitted URL: http://www.duolingo.com/
Effective URL: https://www.duolingo.com/
Submission: On April 21 via api from US

Summary

This website contacted 24 IPs in 4 countries across 19 domains to perform 89 HTTP transactions. The main IP is 3.94.217.247, located in Ashburn, United States and belongs to AMAZON-AES, US. The main domain is www.duolingo.com.
TLS certificate: Issued by Go Daddy Secure Certificate Authority... on November 19th 2020. Valid for: a year.
This is the only time www.duolingo.com was scanned on urlscan.io!

urlscan.io Verdict: No classification

Domain & IP information

IP Address AS Autonomous System
1 6 3.94.217.247 14618 (AMAZON-AES)
38 2600:9000:219... 16509 (AMAZON-02)
12 3.91.139.220 14618 (AMAZON-AES)
1 2a00:1450:400... 15169 (GOOGLE)
1 151.101.14.110 54113 (FASTLY)
1 18.213.121.197 14618 (AMAZON-AES)
1 35.201.112.186 15169 (GOOGLE)
1 52.85.14.100 16509 (AMAZON-02)
2 35.186.220.184 15169 (GOOGLE)
1 2a00:1450:400... 15169 (GOOGLE)
1 3 172.217.16.134 15169 (GOOGLE)
2 172.217.23.98 15169 (GOOGLE)
4 2a03:2880:f03... 32934 (FACEBOOK)
2 52.210.156.96 16509 (AMAZON-02)
1 1 13.224.193.32 16509 (AMAZON-02)
1 2 54.216.122.10 16509 (AMAZON-02)
1 2a00:1450:400... 15169 (GOOGLE)
1 2a00:1450:400... 15169 (GOOGLE)
1 2 2a00:1450:400... 15169 (GOOGLE)
2 2a00:1450:400... 15169 (GOOGLE)
3 2a03:2880:f13... 32934 (FACEBOOK)
1 2a00:1450:400... 15169 (GOOGLE)
1 1 2a00:1450:400... 15169 (GOOGLE)
1 1 2a00:1450:400... 15169 (GOOGLE)
1 52.210.90.219 16509 (AMAZON-02)
2 2a02:26f0:710... 20940 (AKAMAI-ASN1)
3 151.101.112.84 54113 (FASTLY)
89 24
Domain Requested by
38 d35aaqx5ub95lt.cloudfront.net www.duolingo.com
d35aaqx5ub95lt.cloudfront.net
12 excess.duolingo.com d35aaqx5ub95lt.cloudfront.net
5 www.duolingo.com 1 redirects d35aaqx5ub95lt.cloudfront.net
4 connect.facebook.net www.duolingo.com
connect.facebook.net
9814127.fls.doubleclick.net
3 ct.pinterest.com s.pinimg.com
9814127.fls.doubleclick.net
3 www.facebook.com www.duolingo.com
9814127.fls.doubleclick.net
3 9814127.fls.doubleclick.net 1 redirects www.googletagmanager.com
adservice.google.com
2 s.pinimg.com 9814127.fls.doubleclick.net
s.pinimg.com
2 www.google.de www.duolingo.com
2 www.google.com 1 redirects www.duolingo.com
2 cnv.event.prod.bidr.io 1 redirects www.duolingo.com
2 c0.adalyser.com www.duolingo.com
2 www.googleadservices.com www.googletagmanager.com
www.googleadservices.com
2 www.google-analytics.com www.googletagmanager.com
d35aaqx5ub95lt.cloudfront.net
2 collector-pxasqjfz9w.px-cloud.net d35aaqx5ub95lt.cloudfront.net
2 stories.duolingo.com d35aaqx5ub95lt.cloudfront.net
1 insight.adsrvr.org 9814127.fls.doubleclick.net
1 adservice.google.de 1 redirects
1 googleads.g.doubleclick.net 1 redirects
1 adservice.google.com 9814127.fls.doubleclick.net
1 stats.g.doubleclick.net d35aaqx5ub95lt.cloudfront.net
1 pixel.pointmediatracker.com 1 redirects
1 brb.duolingo.com d35aaqx5ub95lt.cloudfront.net
1 edge.fullstory.com d35aaqx5ub95lt.cloudfront.net
1 client.perimeterx.net d35aaqx5ub95lt.cloudfront.net
1 www.googletagmanager.com d35aaqx5ub95lt.cloudfront.net
89 26
Subject Issuer Validity Valid
*.duolingo.com
Go Daddy Secure Certificate Authority - G2
2020-11-19 -
2021-12-21
a year crt.sh
*.cloudfront.net
DigiCert Global CA G2
2021-02-22 -
2022-02-21
a year crt.sh
*.google-analytics.com
GTS CA 1O1
2021-03-23 -
2021-06-15
3 months crt.sh
f4.shared.global.fastly.net
GlobalSign CloudSSL CA - SHA256 - G3
2021-04-21 -
2022-04-10
a year crt.sh
edge.fullstory.com
GTS CA 1D2
2021-02-23 -
2021-05-24
3 months crt.sh
*.px-cloud.net
Sectigo RSA Domain Validation Secure Server CA
2020-09-24 -
2021-09-21
a year crt.sh
*.doubleclick.net
GTS CA 1O1
2021-03-23 -
2021-06-15
3 months crt.sh
www.googleadservices.com
GTS CA 1O1
2021-03-23 -
2021-06-15
3 months crt.sh
*.facebook.com
DigiCert SHA2 High Assurance Server CA
2021-04-06 -
2021-07-03
3 months crt.sh
*.adalyser.com
Thawte RSA CA 2018
2019-06-04 -
2021-07-07
2 years crt.sh
*.event.prod.bidr.io
Amazon
2021-02-26 -
2022-03-27
a year crt.sh
*.googleadservices.com
GTS CA 1O1
2021-03-23 -
2021-06-15
3 months crt.sh
*.g.doubleclick.net
GTS CA 1O1
2021-03-23 -
2021-06-15
3 months crt.sh
www.google.com
GTS CA 1O1
2021-03-23 -
2021-06-15
3 months crt.sh
www.google.de
GTS CA 1O1
2021-03-23 -
2021-06-15
3 months crt.sh
*.google.com
GTS CA 1O1
2021-03-23 -
2021-06-15
3 months crt.sh
*.google.de
GTS CA 1O1
2021-03-23 -
2021-06-15
3 months crt.sh
*.adsrvr.org
GlobalSign GCC R3 DV TLS CA 2020
2021-03-18 -
2022-04-19
a year crt.sh
*.pinterest.com
DigiCert SHA2 High Assurance Server CA
2020-07-16 -
2021-08-04
a year crt.sh

This page contains 4 frames:

Primary Page: https://www.duolingo.com/
Frame ID: 42D20763EC06B632A4D6BD3D3F8A1D92
Requests: 69 HTTP requests in this frame

Frame: https://9814127.fls.doubleclick.net/activityi;dc_pre=CMSbnIS7kPACFUmFewodXlYAmQ;src=9814127;type=hv3;cat=allpa0;ord=8725219669195;gtm=2wg472;auiddc=669409411.1619046718;~oref=https%3A%2F%2Fwww.duolingo.com%2F
Frame ID: DD3E17DC73455A867625E46D2CD2A8B1
Requests: 1 HTTP requests in this frame

Frame: https://adservice.google.com/ddm/fls/i/dc_pre=CMSbnIS7kPACFUmFewodXlYAmQ;src=9814127;type=hv3;cat=allpa0;ord=8725219669195;gtm=2wg472;auiddc=669409411.1619046718;~oref=https%3A%2F%2Fwww.duolingo.com%2F
Frame ID: 90EF12890AE3DFDFBCDF97C639CC930D
Requests: 1 HTTP requests in this frame

Frame: https://9814127.fls.doubleclick.net/ddm/fls/r/dc_pre=CMSbnIS7kPACFUmFewodXlYAmQ;src=9814127;type=hv3;cat=allpa0;ord=8725219669195;gtm=2wg472;auiddc=669409411.1619046718;~oref=https%3A%2F%2Fwww.duolingo.com%2F
Frame ID: D550C83B378B0AF1AA2AB7DCD8D5D5CE
Requests: 11 HTTP requests in this frame

Screenshot


Page URL History Show full URLs

  1. http://www.duolingo.com/ HTTP 301
    https://www.duolingo.com/ Page URL

Detected technologies

Overall confidence: 100%
Detected patterns
  • html /<[^>]+data-react/i

Overall confidence: 100%
Detected patterns
  • html /googletagmanager\.com\/ns\.html[^>]+><\/iframe>/i

Page Statistics

89
Requests

100 %
HTTPS

48 %
IPv6

19
Domains

26
Subdomains

24
IPs

4
Countries

1087 kB
Transfer

3604 kB
Size

23
Cookies

Page URL History

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

  1. http://www.duolingo.com/ HTTP 301
    https://www.duolingo.com/ Page URL

Redirected requests

There were HTTP redirect chains for the following requests:

Request Chain 61
  • https://9814127.fls.doubleclick.net/activityi;src=9814127;type=hv3;cat=allpa0;ord=8725219669195;gtm=2wg472;auiddc=669409411.1619046718;~oref=https%3A%2F%2Fwww.duolingo.com%2F HTTP 302
  • https://9814127.fls.doubleclick.net/activityi;dc_pre=CMSbnIS7kPACFUmFewodXlYAmQ;src=9814127;type=hv3;cat=allpa0;ord=8725219669195;gtm=2wg472;auiddc=669409411.1619046718;~oref=https%3A%2F%2Fwww.duolingo.com%2F
Request Chain 65
  • https://pixel.pointmediatracker.com/kpi?c=duolingo&kpi=visit&tag_id=111&fpc=5d71eab2-a13b-406a-a167-10b147626b7d&utm_source=undefined&utm_medium=undefined&utm_campaign=undefined&gtmcb=1617352005 HTTP 302
  • https://cnv.event.prod.bidr.io/log/cnv?tag_id=111&buzz_key=blisspoint&value=duolingo&segment_key=&order=a00f1242-ace9-4ea2-a517-b5e164ab17d7.null&ord=121375350175905083 HTTP 303
  • https://cnv.event.prod.bidr.io/log/cnv?tag_id=111&buzz_key=blisspoint&value=duolingo&segment_key=&order=a00f1242-ace9-4ea2-a517-b5e164ab17d7.null&ord=121375350175905083&_bee_ppp=1
Request Chain 74
  • https://googleads.g.doubleclick.net/pagead/viewthroughconversion/397119219/?random=544275712&cv=9&fst=1619046718475&num=1&value=1&label=k0ETCJGBvf0BEPOdrr0B&guid=ON&resp=GooglemKTybQhCsO&eid=2505059650&u_h=1200&u_w=1600&u_ah=1200&u_aw=1600&u_cd=24&u_his=2&u_tz=120&u_java=false&u_nplug=0&u_nmime=0&gtm=2wg472&sendb=1&ig=1&frm=0&url=https%3A%2F%2Fwww.duolingo.com%2F&tiba=Duolingo%20-%20The%20world%27s%20best%20way%20to%20learn%20a%20language&hn=www.googleadservices.com&async=1&fmt=3&ctc_id=CAIVAgAAAB0CAAAA&ct_cookie_present=false&ocp_id=PrGAYMzlH_LG7_UP44eHgAg&sscte=1&crd=&eitems=ChEI8Jr_gwYQw9eEkPLuhMK3ARIdAAeV_RmfktOvF6tgkreaRQUZcyjmTrJT_baAi5U HTTP 302
  • https://www.google.com/pagead/1p-conversion/397119219/?random=544275712&cv=9&fst=1619046718475&num=1&value=1&label=k0ETCJGBvf0BEPOdrr0B&guid=ON&resp=GooglemKTybQhCsO&eid=2505059650&u_h=1200&u_w=1600&u_ah=1200&u_aw=1600&u_cd=24&u_his=2&u_tz=120&u_java=false&u_nplug=0&u_nmime=0&gtm=2wg472&sendb=1&ig=1&frm=0&url=https%3A%2F%2Fwww.duolingo.com%2F&tiba=Duolingo%20-%20The%20world%27s%20best%20way%20to%20learn%20a%20language&hn=www.googleadservices.com&async=1&fmt=3&ctc_id=CAIVAgAAAB0CAAAA&ct_cookie_present=false&sscte=1&crd=&is_vtc=1&ocp_id=PrGAYMzlH_LG7_UP44eHgAg&cid=CAQSKQCNIrLMYI3siikRC_U2mn0D2h6DWHwYRqRkkv_haoZMorhKkN-lGPuB&eitems=ChEI8Jr_gwYQw9eEkPLuhMK3ARIdAAeV_RlhBhVD6bCZmCfpxknz2K8U4DZ9NRWMQv8&random=4193590802&resp=GooglemKTybQhCsO HTTP 302
  • https://www.google.de/pagead/1p-conversion/397119219/?random=544275712&cv=9&fst=1619046718475&num=1&value=1&label=k0ETCJGBvf0BEPOdrr0B&guid=ON&resp=GooglemKTybQhCsO&eid=2505059650&u_h=1200&u_w=1600&u_ah=1200&u_aw=1600&u_cd=24&u_his=2&u_tz=120&u_java=false&u_nplug=0&u_nmime=0&gtm=2wg472&sendb=1&ig=1&frm=0&url=https%3A%2F%2Fwww.duolingo.com%2F&tiba=Duolingo%20-%20The%20world%27s%20best%20way%20to%20learn%20a%20language&hn=www.googleadservices.com&async=1&fmt=3&ctc_id=CAIVAgAAAB0CAAAA&ct_cookie_present=false&sscte=1&crd=&is_vtc=1&ocp_id=PrGAYMzlH_LG7_UP44eHgAg&cid=CAQSKQCNIrLMYI3siikRC_U2mn0D2h6DWHwYRqRkkv_haoZMorhKkN-lGPuB&eitems=ChEI8Jr_gwYQw9eEkPLuhMK3ARIdAAeV_RlhBhVD6bCZmCfpxknz2K8U4DZ9NRWMQv8&random=4193590802&resp=GooglemKTybQhCsO&ipr=y
Request Chain 76
  • https://adservice.google.de/ddm/fls/i/dc_pre=CMSbnIS7kPACFUmFewodXlYAmQ;src=9814127;type=hv3;cat=allpa0;ord=8725219669195;gtm=2wg472;auiddc=669409411.1619046718;~oref=https%3A%2F%2Fwww.duolingo.com%2F HTTP 302
  • https://9814127.fls.doubleclick.net/ddm/fls/r/dc_pre=CMSbnIS7kPACFUmFewodXlYAmQ;src=9814127;type=hv3;cat=allpa0;ord=8725219669195;gtm=2wg472;auiddc=669409411.1619046718;~oref=https%3A%2F%2Fwww.duolingo.com%2F

89 HTTP transactions

Resource
Path
Size
x-fer
Type
MIME-Type
Primary Request /
www.duolingo.com/
Redirect Chain
  • http://www.duolingo.com/
  • https://www.duolingo.com/
18 KB
7 KB
Document
General
Full URL
https://www.duolingo.com/
Protocol
H2
Security
TLS 1.2, ECDHE_RSA, AES_128_GCM
Server
3.94.217.247 Ashburn, United States, ASN14618 (AMAZON-AES, US),
Reverse DNS
ec2-3-94-217-247.compute-1.amazonaws.com
Software
duo-api /
Resource Hash
97de9eb048163cea8eb7b289d2a249d66d2759f16041ece21948ebabd26dd1d0
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 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36
accept
text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9
sec-fetch-site
none
sec-fetch-mode
navigate
sec-fetch-user
?1
sec-fetch-dest
document
accept-encoding
gzip, deflate, br
accept-language
en-US
Upgrade-Insecure-Requests
1
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

date
Wed, 21 Apr 2021 23:11:57 GMT
content-type
text/html; charset=UTF-8
set-cookie
AWSALB=jAPmTDZwiF07R1vx3mNQcW0WKaunkKOqcU1xlX2DmLHPomKBx4ES9f3/mcIM6hvXWdOh8tNQQTncvFccHtQXgEDDuIMAD9xarNRnhoYSbiNnB8uj2O4lay3lAbLr; Expires=Wed, 28 Apr 2021 23:11:57 GMT; Path=/ AWSALBCORS=jAPmTDZwiF07R1vx3mNQcW0WKaunkKOqcU1xlX2DmLHPomKBx4ES9f3/mcIM6hvXWdOh8tNQQTncvFccHtQXgEDDuIMAD9xarNRnhoYSbiNnB8uj2O4lay3lAbLr; Expires=Wed, 28 Apr 2021 23:11:57 GMT; Path=/; SameSite=None; Secure logged_out_uuid=b3e3f908-9126-4747-907b-94432cb01131; Domain=.duolingo.com; Max-Age=31536000; Path=/; expires=Thu, 21-Apr-2022 23:11:57 GMT lang=en; Domain=.duolingo.com; Max-Age=31536000; Path=/; expires=Thu, 21-Apr-2022 23:11:57 GMT wuuid=7d823ca4-df04-45ef-b0e0-c718d3d4407d
server
duo-api
no-retry
1
surrogate-control
no-store
expires
0
pragma
no-cache
cache-control
no-store, no-cache, must-revalidate, proxy-revalidate
x-frame-options
SAMEORIGIN
x-tid
ffff03fa6080b041012e
x-ws
UK
x-runtime
0.02004
x-ipcountry
US
content-encoding
gzip
x-envoy-upstream-service-time
22
x-duo-request-host
www.duolingo.com

Redirect headers

Date
Wed, 21 Apr 2021 23:11:57 GMT
Content-Length
0
Connection
keep-alive
location
https://www.duolingo.com/
x-duo-request-host
www.duolingo.com
server
duo-api
x-envoy-upstream-service-time
0
app-487fce57.css
d35aaqx5ub95lt.cloudfront.net/css/
94 KB
20 KB
Stylesheet
General
Full URL
https://d35aaqx5ub95lt.cloudfront.net/css/app-487fce57.css
Requested by
Host: www.duolingo.com
URL: https://www.duolingo.com/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2600:9000:2190:2800:7:60cd:e840:21 , United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software
AmazonS3 /
Resource Hash
320a592b8d9ad213ff473567beeba8ff9da560130b5a57122515e38f634bcad5

Request headers

Referer
https://www.duolingo.com/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

date
Wed, 14 Apr 2021 21:06:23 GMT
content-encoding
gzip
last-modified
Wed, 14 Apr 2021 20:52:32 GMT
server
AmazonS3
age
612336
etag
"d954452261af746492e0be573668f608"
x-cache
Hit from cloudfront
content-type
text/css
via
1.1 7245e91891539560c1f484b1e46159c9.cloudfront.net (CloudFront)
cache-control
max-age=315360000
x-amz-cf-pop
ZRH50-C1
accept-ranges
bytes
content-length
20479
x-amz-cf-id
EuBvv0zeSqMPV3TUaFikss0oFyKCknTKHaeVfL3FU-8VAPGPMdZKNA==
reactVendor.react-redux-61e98355.js
d35aaqx5ub95lt.cloudfront.net/js/
10 KB
4 KB
Script
General
Full URL
https://d35aaqx5ub95lt.cloudfront.net/js/reactVendor.react-redux-61e98355.js
Requested by
Host: www.duolingo.com
URL: https://www.duolingo.com/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2600:9000:2190:2800:7:60cd:e840:21 , United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software
AmazonS3 /
Resource Hash
f3c4aa02dd0cd63d393ef5930d475d38e8a71b45edff092fcb97c4869662e29e

Request headers

Referer
https://www.duolingo.com/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

date
Wed, 07 Apr 2021 20:55:56 GMT
content-encoding
gzip
last-modified
Wed, 07 Apr 2021 20:36:41 GMT
server
AmazonS3
age
1217763
etag
"0777ebfa2fcda664f45a9a387b16e02f"
x-cache
Hit from cloudfront
content-type
application/javascript
via
1.1 7245e91891539560c1f484b1e46159c9.cloudfront.net (CloudFront)
cache-control
max-age=315360000
x-amz-cf-pop
ZRH50-C1
accept-ranges
bytes
content-length
3494
x-amz-cf-id
2B2zTpQJ_GbWz9PQklpP0hIhaEJktcb9mb02aI-mXfNBZ9X4or_DCg==
reactVendor.react-focus-lock-f86e6e24.js
d35aaqx5ub95lt.cloudfront.net/js/
5 KB
2 KB
Script
General
Full URL
https://d35aaqx5ub95lt.cloudfront.net/js/reactVendor.react-focus-lock-f86e6e24.js
Requested by
Host: www.duolingo.com
URL: https://www.duolingo.com/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2600:9000:2190:2800:7:60cd:e840:21 , United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software
AmazonS3 /
Resource Hash
804aee718e78d61a21ec6413ce671841dbce2e9f1b3a61dad710e5fd4003e3e4

Request headers

Referer
https://www.duolingo.com/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

date
Wed, 07 Apr 2021 20:55:56 GMT
content-encoding
gzip
last-modified
Wed, 07 Apr 2021 20:36:41 GMT
server
AmazonS3
age
1217763
etag
"a194471378091c267aa3b235d4fe1493"
x-cache
Hit from cloudfront
content-type
application/javascript
via
1.1 7245e91891539560c1f484b1e46159c9.cloudfront.net (CloudFront)
cache-control
max-age=315360000
x-amz-cf-pop
ZRH50-C1
accept-ranges
bytes
content-length
2106
x-amz-cf-id
szZZ9cmn960Y8vV2Nd9Q8IEo1BrHhHAeDWp0PvObR7mpgE1RT08--Q==
reactVendor.react-transition-group-cd36ccec.js
d35aaqx5ub95lt.cloudfront.net/js/
9 KB
3 KB
Script
General
Full URL
https://d35aaqx5ub95lt.cloudfront.net/js/reactVendor.react-transition-group-cd36ccec.js
Requested by
Host: www.duolingo.com
URL: https://www.duolingo.com/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2600:9000:2190:2800:7:60cd:e840:21 , United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software
AmazonS3 /
Resource Hash
a8a040ae8bb40362042fd16860923f776e6bb1319411e65ebb76363185f46a53

Request headers

Referer
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TLS 1.3, , AES_128_GCM
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Request headers

Accept
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content-encoding
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Request headers

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Response headers

date
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accept-encoding
gzip, identity
server
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H2
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TLS 1.3, , AES_128_GCM
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Software
AmazonS3 /
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Request headers

Accept
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Response headers

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content-encoding
gzip
vary
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age
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x-cache
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content-length
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access-control-allow-origin
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server
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etag
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cache-control
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Protocol
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Request headers

Referer
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User-Agent
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Response headers

date
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accept-encoding
gzip, identity
server
Jetty(9.2.z-SNAPSHOT)
access-control-max-age
3600
access-control-allow-methods
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312 B
XHR
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Request headers

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date
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Protocol
H2
Security
TLS 1.2, ECDHE_RSA, AES_128_GCM
Server
3.91.139.220 Ashburn, United States, ASN14618 (AMAZON-AES, US),
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Software
Jetty(9.2.z-SNAPSHOT) /
Resource Hash
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Request headers

Referer
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User-Agent
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Response headers

date
Wed, 21 Apr 2021 23:11:58 GMT
accept-encoding
gzip, identity
server
Jetty(9.2.z-SNAPSHOT)
access-control-max-age
3600
access-control-allow-methods
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312 B
XHR
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Full URL
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Host: d35aaqx5ub95lt.cloudfront.net
URL: https://d35aaqx5ub95lt.cloudfront.net/js/app-87145714.js
Protocol
H2
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Request headers

Referer
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User-Agent
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Response headers

date
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accept-encoding
gzip, identity
server
Jetty(9.2.z-SNAPSHOT)
access-control-max-age
3600
access-control-allow-methods
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712 B
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URL: https://d35aaqx5ub95lt.cloudfront.net/js/app-87145714.js
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H2
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TLS 1.3, , AES_128_GCM
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AmazonS3 /
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Request headers

Accept
application/json, text/plain, */*
Referer
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User-Agent
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Response headers

date
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via
1.1 e9bbd2678353d8f1e96802ff2420d982.cloudfront.net (CloudFront)
server
AmazonS3
x-amz-cf-pop
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Requested by
Host: d35aaqx5ub95lt.cloudfront.net
URL: https://d35aaqx5ub95lt.cloudfront.net/js/app-87145714.js
Protocol
H2
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TLS 1.2, ECDHE_RSA, AES_128_GCM
Server
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Security Headers
Name Value
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Request headers

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cors
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gzip, deflate, br
accept-language
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x-requested-with
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cookie
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accept
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cache-control
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sec-fetch-site
same-origin
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Accept
application/json, text/plain, */*
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X-Amzn-Trace-Id
User=0
User-Agent
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Response headers

date
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content-encoding
gzip
x-ws
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surrogate-control
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duo-api
no-retry
1
x-frame-options
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content-type
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pragma
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Full URL
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URL: https://d35aaqx5ub95lt.cloudfront.net/js/app-87145714.js
Protocol
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Accept
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X-Amzn-Trace-Id
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User-Agent
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Response headers

date
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x-content-type-options
nosniff
x-duo-request-host
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x-envoy-upstream-service-time
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pragma
no-cache
referrer-policy
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x-frame-options
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Protocol
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Server
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Resource Hash
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Request headers

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cors
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accept-encoding
gzip, deflate, br
accept-language
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sec-fetch-site
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Response headers

date
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x-ws
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access-control-allow-origin
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Protocol
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TLS 1.2, ECDHE_RSA, AES_128_GCM
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x-requested-with
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date
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content-encoding
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x-ws
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surrogate-control
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x-duo-request-host
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TLS 1.3, , AES_128_GCM
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Software
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Response headers

date
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via
1.1 google
access-control-allow-methods
GET,HEAD,PUT,PATCH,POST,DELETE
content-type
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General
Full URL
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Requested by
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URL: https://www.googletagmanager.com/gtm.js?id=GTM-TX6Z97C
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H2
Security
TLS 1.3, , AES_128_GCM
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Security Headers
Name Value
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Request headers

Referer
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User-Agent
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Response headers

strict-transport-security
max-age=10886400; includeSubDomains; preload
content-encoding
gzip
x-content-type-options
nosniff
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server
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age
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date
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vary
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9814127.fls.doubleclick.net/ Frame DD3E
Redirect Chain
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Protocol
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QUIC, , AES_128_GCM
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:scheme
https
:path
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Referer
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Response headers

p3p
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cross-origin
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expires
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cache-control
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strict-transport-security
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content-type
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pragma
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Redirect headers

p3p
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content-type
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nosniff
server
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content-length
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x-xss-protection
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alt-svc
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conversion_async.js
www.googleadservices.com/pagead/
35 KB
14 KB
Script
General
Full URL
https://www.googleadservices.com/pagead/conversion_async.js
Requested by
Host: www.googletagmanager.com
URL: https://www.googletagmanager.com/gtm.js?id=GTM-TX6Z97C
Protocol
H2
Security
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Request headers

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Response headers

date
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content-encoding
gzip
x-content-type-options
nosniff
p3p
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General
Full URL
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Requested by
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URL: https://www.duolingo.com/
Protocol
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Server
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Security Headers
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Request headers

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Response headers

content-security-policy
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date
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strict-transport-security
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priority
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12 KB
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Full URL
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Requested by
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Protocol
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Security
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Server
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Response headers

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Content-Encoding
gzip
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"60b9cf4ef4ac6dab5294025f3c443ba3cca92451"
X-Powered-By
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  • https://cnv.event.prod.bidr.io/log/cnv?tag_id=111&buzz_key=blisspoint&value=duolingo&segment_key=&order=a00f1242-ace9-4ea2-a517-b5e164ab17d7.null&ord=121375350175905083
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43 B
793 B
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Full URL
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Requested by
Host: www.duolingo.com
URL: https://www.duolingo.com/
Protocol
HTTP/1.1
Security
TLS 1.2, ECDHE_RSA, AES_128_GCM
Server
54.216.122.10 Dublin, Ireland, ASN16509 (AMAZON-02, US),
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Security Headers
Name Value
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Request headers

Referer
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User-Agent
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Response headers

pragma
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Server
nginx
strict-transport-security
max-age=2592000; includeSubDomains
p3p
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cache-control
no-cache, must-revalidate
Connection
keep-alive
content-type
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Content-Length
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expires
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Redirect headers

location
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Date
Wed, 21 Apr 2021 23:11:59 GMT
Server
nginx
Connection
keep-alive
Content-Length
0
strict-transport-security
max-age=2592000; includeSubDomains
collect
www.google-analytics.com/j/
2 B
22 B
XHR
General
Full URL
https://www.google-analytics.com/j/collect?v=1&_v=j90&a=417548458&t=pageview&_s=1&dl=https%3A%2F%2Fwww.duolingo.com%2F&ul=en-us&de=UTF-8&dt=Duolingo%20-%20The%20world%27s%20best%20way%20to%20learn%20a%20language&sd=24-bit&sr=1600x1200&vp=1600x1200&je=0&_u=YEBAAEABAAAAAC~&jid=743517675&gjid=2025689495&cid=129998210.1619046718&tid=UA-21595814-1&_gid=1269648523.1619046718&_r=1&gtm=2wg472TX6Z97C&did=i5iSjo&z=327247887
Requested by
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URL: https://d35aaqx5ub95lt.cloudfront.net/js/app-87145714.js
Protocol
H3-29
Security
QUIC, , AES_128_GCM
Server
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Reverse DNS
Software
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Resource Hash
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Security Headers
Name Value
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Request headers

Referer
https://www.duolingo.com/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36
Content-Type
text/plain

Response headers

pragma
no-cache
date
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x-content-type-options
nosniff
last-modified
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server
Golfe2
content-type
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access-control-allow-origin
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cache-control
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cross-origin-resource-policy
cross-origin
alt-svc
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content-length
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expires
Fri, 01 Jan 1990 00:00:00 GMT
1735692093320310
connect.facebook.net/signals/config/
255 KB
73 KB
Script
General
Full URL
https://connect.facebook.net/signals/config/1735692093320310?v=2.9.39&r=stable
Requested by
Host: connect.facebook.net
URL: https://connect.facebook.net/en_US/fbevents.js
Protocol
H3-29
Security
QUIC, , AES_128_GCM
Server
2a03:2880:f03d:1c:face:b00c:0:3 , United States, ASN32934 (FACEBOOK, US),
Reverse DNS
Software
/
Resource Hash
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Security Headers
Name Value
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X-Content-Type-Options nosniff
X-Frame-Options DENY
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Request headers

Referer
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User-Agent
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Response headers

content-security-policy
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cross-origin-resource-policy
cross-origin
alt-svc
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content-length
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x-fb-rlafr
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pragma
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cross-origin-embedder-policy-report-only
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x-frame-options
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strict-transport-security
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report-to
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content-type
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vary
Accept-Encoding
cache-control
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priority
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expires
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/
www.googleadservices.com/pagead/conversion/397119219/
2 KB
1 KB
Script
General
Full URL
https://www.googleadservices.com/pagead/conversion/397119219/?random=1619046718475&cv=9&fst=1619046718475&num=1&value=1&label=k0ETCJGBvf0BEPOdrr0B&guid=ON&resp=GooglemKTybQhCsO&eid=2505059650&u_h=1200&u_w=1600&u_ah=1200&u_aw=1600&u_cd=24&u_his=2&u_tz=120&u_java=false&u_nplug=0&u_nmime=0&gtm=2wg472&sendb=1&ig=1&frm=0&url=https%3A%2F%2Fwww.duolingo.com%2F&tiba=Duolingo%20-%20The%20world%27s%20best%20way%20to%20learn%20a%20language&hn=www.googleadservices.com&bttype=purchase&async=1&rfmt=3&fmt=4
Requested by
Host: www.googleadservices.com
URL: https://www.googleadservices.com/pagead/conversion_async.js
Protocol
H3-29
Security
QUIC, , AES_128_GCM
Server
172.217.23.98 , United States, ASN15169 (GOOGLE, US),
Reverse DNS
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Software
cafe /
Resource Hash
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Security Headers
Name Value
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Request headers

Referer
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User-Agent
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Response headers

pragma
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date
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content-encoding
gzip
x-content-type-options
nosniff
server
cafe
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*
p3p
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cache-control
no-cache, must-revalidate
cross-origin-resource-policy
cross-origin
content-disposition
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content-type
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alt-svc
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content-length
1216
x-xss-protection
0
expires
Fri, 01 Jan 1990 00:00:00 GMT
collect
stats.g.doubleclick.net/j/
4 B
89 B
XHR
General
Full URL
https://stats.g.doubleclick.net/j/collect?t=dc&aip=1&_r=3&v=1&_v=j90&tid=UA-21595814-1&cid=129998210.1619046718&jid=743517675&gjid=2025689495&_gid=1269648523.1619046718&_u=YEBAAEAAAAAAAC~&z=887921856
Requested by
Host: d35aaqx5ub95lt.cloudfront.net
URL: https://d35aaqx5ub95lt.cloudfront.net/js/app-87145714.js
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2a00:1450:400c:c06::9a Brussels, Belgium, ASN15169 (GOOGLE, US),
Reverse DNS
Software
Golfe2 /
Resource Hash
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Security Headers
Name Value
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Request headers

Referer
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User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36
Content-Type
text/plain

Response headers

pragma
no-cache
strict-transport-security
max-age=10886400; includeSubDomains; preload
x-content-type-options
nosniff
last-modified
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server
Golfe2
date
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content-type
text/plain
access-control-allow-origin
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cache-control
no-cache, no-store, must-revalidate
access-control-allow-credentials
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cross-origin-resource-policy
cross-origin
alt-svc
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content-length
4
expires
Fri, 01 Jan 1990 00:00:00 GMT
ga-audiences
www.google.com/ads/
42 B
285 B
Image
General
Full URL
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Requested by
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URL: https://www.duolingo.com/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
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Reverse DNS
Software
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Resource Hash
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Security Headers
Name Value
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Request headers

Referer
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User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

pragma
no-cache
date
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x-content-type-options
nosniff
server
cafe
timing-allow-origin
*
p3p
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cache-control
no-cache, no-store, must-revalidate
cross-origin-resource-policy
cross-origin
content-type
image/gif
alt-svc
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content-length
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x-xss-protection
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expires
Fri, 01 Jan 1990 00:00:00 GMT
ga-audiences
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42 B
107 B
Image
General
Full URL
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Requested by
Host: www.duolingo.com
URL: https://www.duolingo.com/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2a00:1450:4001:812::2003 Frankfurt am Main, Germany, ASN15169 (GOOGLE, US),
Reverse DNS
Software
cafe /
Resource Hash
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Security Headers
Name Value
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Request headers

Referer
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User-Agent
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Response headers

pragma
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date
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x-content-type-options
nosniff
server
cafe
timing-allow-origin
*
p3p
policyref="https://www.googleadservices.com/pagead/p3p.xml", CP="NOI DEV PSA PSD IVA IVD OTP OUR OTR IND OTC"
cache-control
no-cache, no-store, must-revalidate
cross-origin-resource-policy
cross-origin
content-type
image/gif
alt-svc
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content-length
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x-xss-protection
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expires
Fri, 01 Jan 1990 00:00:00 GMT
/
www.facebook.com/tr/
44 B
409 B
Image
General
Full URL
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Requested by
Host: www.duolingo.com
URL: https://www.duolingo.com/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2a03:2880:f13d:83:face:b00c:0:25de , United States, ASN32934 (FACEBOOK, US),
Reverse DNS
Software
proxygen-bolt /
Resource Hash
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Security Headers
Name Value
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Request headers

Referer
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User-Agent
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Response headers

date
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last-modified
Fri, 21 Dec 2012 00:00:01 GMT
server
proxygen-bolt
strict-transport-security
max-age=31536000; includeSubDomains
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alt-svc
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expires
Wed, 21 Apr 2021 23:11:58 GMT
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adservice.google.com/ddm/fls/i/ Frame 90EF
476 B
851 B
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General
Full URL
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Requested by
Host: 9814127.fls.doubleclick.net
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Security
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Server
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Software
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:scheme
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sec-fetch-site
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sec-fetch-mode
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sec-fetch-dest
iframe
referer
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accept-encoding
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accept-language
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1
User-Agent
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Referer
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Response headers

p3p
policyref="https://www.googleadservices.com/pagead/p3p.xml", CP="NOI DEV PSA PSD IVA IVD OTP OUR OTR IND OTC"
timing-allow-origin
*
cross-origin-resource-policy
cross-origin
date
Wed, 21 Apr 2021 23:11:58 GMT
expires
Fri, 01 Jan 1990 00:00:00 GMT
cache-control
no-cache, must-revalidate
content-type
text/html; charset=UTF-8
pragma
no-cache
x-content-type-options
nosniff
content-encoding
gzip
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cafe
content-length
378
x-xss-protection
0
alt-svc
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/
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Redirect Chain
  • https://googleads.g.doubleclick.net/pagead/viewthroughconversion/397119219/?random=544275712&cv=9&fst=1619046718475&num=1&value=1&label=k0ETCJGBvf0BEPOdrr0B&guid=ON&resp=GooglemKTybQhCsO&eid=250505...
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42 B
64 B
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General
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Requested by
Host: www.duolingo.com
URL: https://www.duolingo.com/
Protocol
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Security
QUIC, , AES_128_GCM
Server
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Reverse DNS
Software
cafe /
Resource Hash
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Security Headers
Name Value
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Request headers

Referer
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User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

pragma
no-cache
date
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x-content-type-options
nosniff
server
cafe
timing-allow-origin
*
p3p
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cache-control
no-cache, no-store, must-revalidate
cross-origin-resource-policy
cross-origin
content-security-policy
script-src 'none'; object-src 'none'
content-type
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alt-svc
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server
proxygen-bolt
strict-transport-security
max-age=31536000; includeSubDomains
content-type
image/gif
cache-control
no-cache, must-revalidate, max-age=0
cross-origin-resource-policy
cross-origin
content-length
44
alt-svc
h3-29=":443"; ma=3600,h3-27=":443"; ma=3600
priority
u=3,i
expires
Wed, 21 Apr 2021 23:11:58 GMT
main.dec9de31.js
s.pinimg.com/ct/lib/ Frame D550
49 KB
17 KB
Script
General
Full URL
https://s.pinimg.com/ct/lib/main.dec9de31.js
Requested by
Host: s.pinimg.com
URL: https://s.pinimg.com/ct/core.js
Protocol
H2
Security
TLS 1.3, , AES_256_GCM
Server
2a02:26f0:7100:1a5::1931 Frankfurt am Main, Germany, ASN20940 (AKAMAI-ASN1, NL),
Reverse DNS
Software
/
Resource Hash
850420a74b035447dcf888c73803e7588d07aa16c80c3ee326c7c575186bd001

Request headers

Referer
https://9814127.fls.doubleclick.net/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

content-encoding
gzip
x-cdn
akamai
etag
"534cdacf4ffd94bf57ac75057dd94604"
vary
Accept-Encoding, Origin
access-control-allow-methods
GET
content-type
application/javascript
access-control-allow-origin
*
access-control-max-age
86400
cache-control
max-age=1209600
x-fallback
51f4334-104.126.36.167
accept-ranges
bytes
content-length
17139
access-control-expose-headers
X-CDN
/
ct.pinterest.com/user/ Frame D550
57 B
457 B
XHR
General
Full URL
https://ct.pinterest.com/user/?tid=2612728976278&pd=%7B%22em%22%3A%2224aba99b2defbb47ee981b4200313f61f3ae31541d8717bdac1e463c838939b0%22%7D&cb=1619046718942
Requested by
Host: s.pinimg.com
URL: https://s.pinimg.com/ct/lib/main.dec9de31.js
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
151.101.112.84 Frankfurt am Main, Germany, ASN54113 (FASTLY, US),
Reverse DNS
Software
/
Resource Hash
97f2a7de8ee34ba39b204787cb7186545101c11acd513323ab02339b8154a0f9

Request headers

Referer
https://9814127.fls.doubleclick.net/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

pragma
no-cache
date
Wed, 21 Apr 2021 23:11:58 GMT
content-encoding
gzip
referrer-policy
origin
x-cdn
fastly
content-type
application/json; charset=utf-8
access-control-allow-origin
https://9814127.fls.doubleclick.net
access-control-expose-headers
Epik,Pin-Unauth
cache-control
no-cache,no-store,must-revalidate,max-age=0
pin-unauth
dWlkPU16VTNZakkzTVRNdFkyTXhNUzAwTnpjNUxUbGlNamd0T1dKalpHVTBOekF4TTJJMw
x-pinterest-rid
9595974097708010
x-envoy-upstream-service-time
2
access-control-allow-credentials
true
content-length
69
expires
Sat, 01 Jan 2000 00:00:00 GMT
/
ct.pinterest.com/v3/ Frame D550
35 B
96 B
Image
General
Full URL
https://ct.pinterest.com/v3/?tid=2612728976278&pd=%7B%22em%22%3A%2224aba99b2defbb47ee981b4200313f61f3ae31541d8717bdac1e463c838939b0%22%7D&event=init&ad=%7B%22loc%22%3A%22https%3A%2F%2F9814127.fls.doubleclick.net%2Fddm%2Ffls%2Fr%2Fdc_pre%3DCMSbnIS7kPACFUmFewodXlYAmQ%3Bsrc%3D9814127%3Btype%3Dhv3%3Bcat%3Dallpa0%3Bord%3D8725219669195%3Bgtm%3D2wg472%3Bauiddc%3D669409411.1619046718%3B~oref%3Dhttps%253A%252F%252Fwww.duolingo.com%252F%22%2C%22ref%22%3A%22https%3A%2F%2Fadservice.google.com%2F%22%2C%22if%22%3Atrue%2C%22sh%22%3A1200%2C%22sw%22%3A1600%2C%22mh%22%3A%22dec9de31%22%7D&cb=1619046718943
Requested by
Host: 9814127.fls.doubleclick.net
URL: https://9814127.fls.doubleclick.net/ddm/fls/r/dc_pre=CMSbnIS7kPACFUmFewodXlYAmQ;src=9814127;type=hv3;cat=allpa0;ord=8725219669195;gtm=2wg472;auiddc=669409411.1619046718;~oref=https%3A%2F%2Fwww.duolingo.com%2F
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
151.101.112.84 Frankfurt am Main, Germany, ASN54113 (FASTLY, US),
Reverse DNS
Software
/
Resource Hash
37b17c5135a176a9474521af147d96dfa1fb4ca0f43f00d1400bd1885be3ab9b

Request headers

Referer
https://9814127.fls.doubleclick.net/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

pragma
no-cache
date
Wed, 21 Apr 2021 23:11:58 GMT
referrer-policy
origin
x-cdn
fastly
content-type
image/gif
access-control-allow-origin
*
cache-control
no-cache,no-store,must-revalidate,max-age=0
x-envoy-upstream-service-time
3
x-pinterest-rid
1529369596397875
content-length
35
expires
Sat, 01 Jan 2000 00:00:00 GMT
/
ct.pinterest.com/md/ Frame D550
0
198 B
XHR
General
Full URL
https://ct.pinterest.com/md/
Requested by
Host: s.pinimg.com
URL: https://s.pinimg.com/ct/lib/main.dec9de31.js
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
151.101.112.84 Frankfurt am Main, Germany, ASN54113 (FASTLY, US),
Reverse DNS
Software
/
Resource Hash
e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

Request headers

Referer
https://9814127.fls.doubleclick.net/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36
Content-Type
text/plain

Response headers

pragma
no-cache
date
Wed, 21 Apr 2021 23:11:59 GMT
referrer-policy
origin
x-cdn
fastly
access-control-allow-origin
*
cache-control
no-cache,no-store,must-revalidate,max-age=0
x-envoy-upstream-service-time
1
x-pinterest-rid
1289832230083441
expires
Sat, 01 Jan 2000 00:00:00 GMT
collector
collector-pxasqjfz9w.px-cloud.net/api/v2/
366 B
431 B
XHR
General
Full URL
https://collector-pxasqjfz9w.px-cloud.net/api/v2/collector
Requested by
Host: d35aaqx5ub95lt.cloudfront.net
URL: https://d35aaqx5ub95lt.cloudfront.net/js/app-87145714.js
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
35.186.220.184 Kansas City, United States, ASN15169 (GOOGLE, US),
Reverse DNS
184.220.186.35.bc.googleusercontent.com
Software
/
Resource Hash
abbda66051e5c7c445ec5d7c17822cf12f0a428170468b994c74f4d7334f8d91

Request headers

Referer
https://www.duolingo.com/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36
Content-type
application/x-www-form-urlencoded

Response headers

date
Wed, 21 Apr 2021 23:11:59 GMT
via
1.1 google
access-control-allow-methods
GET,HEAD,PUT,PATCH,POST,DELETE
content-type
application/json; charset=utf-8
access-control-allow-origin
https://www.duolingo.com
access-control-allow-credentials
true
timing-allow-origin
*
alt-svc
clear
content-length
366
/
www.facebook.com/tr/ Frame D550
44 B
88 B
Image
General
Full URL
https://www.facebook.com/tr/?id=1735692093320310&ev=Microdata&dl=https%3A%2F%2F9814127.fls.doubleclick.net%2Fddm%2Ffls%2Fr%2Fdc_pre%3DCMSbnIS7kPACFUmFewodXlYAmQ%3Bsrc%3D9814127%3Btype%3Dhv3%3Bcat%3Dallpa0%3Bord%3D8725219669195%3Bgtm%3D2wg472%3Bauiddc%3D669409411.1619046718%3B~oref%3Dhttps%253A%252F%252Fwww.duolingo.com%252F&rl=https%3A%2F%2Fadservice.google.com%2F&if=true&ts=1619046720259&cd[DataLayer]=%5B%5D&cd[Meta]=%7B%22title%22%3A%22%22%7D&cd[OpenGraph]=%7B%7D&cd[Schema.org]=%5B%5D&cd[JSON-LD]=%5B%5D&sw=1600&sh=1200&v=2.9.39&r=stable&ec=1&o=30&it=1619046718731&coo=false&es=automatic&tm=3&rqm=GET
Protocol
H3-29
Security
QUIC, , AES_128_GCM
Server
2a03:2880:f13d:83:face:b00c:0:25de , United States, ASN32934 (FACEBOOK, US),
Reverse DNS
Software
proxygen-bolt /
Resource Hash
10d8d42d73a02ddb877101e72fbfa15a0ec820224d97cedee4cf92d571be5caa
Security Headers
Name Value
Strict-Transport-Security max-age=31536000; includeSubDomains

Request headers

Referer
https://9814127.fls.doubleclick.net/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

date
Wed, 21 Apr 2021 23:12:00 GMT
last-modified
Fri, 21 Dec 2012 00:00:01 GMT
server
proxygen-bolt
strict-transport-security
max-age=31536000; includeSubDomains
content-type
image/gif
cache-control
no-cache, must-revalidate, max-age=0
cross-origin-resource-policy
cross-origin
content-length
44
alt-svc
h3-29=":443"; ma=3600,h3-27=":443"; ma=3600
priority
u=3,i
expires
Wed, 21 Apr 2021 23:12:00 GMT

Verdicts & Comments Add Verdict or Comment

85 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.

object| 0 object| onbeforexrselect object| ontransitionrun object| ontransitionstart object| ontransitioncancel object| cookieStore function| showDirectoryPicker function| showOpenFilePicker function| showSaveFilePicker boolean| originAgentCluster object| trustedTypes boolean| crossOriginIsolated object| duo boolean| objectEntries object| features boolean| isAbc undefined| el object| webpackJsonp function| setImmediate function| clearImmediate object| dataLayer number| _rollbarStartTime function| rollbar boolean| _rollbarDidLoad function| _rollbarURH function| ga object| gaDevIds object| gaplugins function| HowlerGlobal object| Howler function| Howl function| Sound string| _pxAppId string| _pxParam1 string| _pxParam2 boolean| _fs_debug string| _fs_host string| _fs_script string| _fs_org string| _fs_namespace function| FS boolean| _fs_initialized object| google_tag_manager object| PXAsQJFZ9W object| PX undefined| _AsQJFZ9Whandler function| create_UUID function| createCookie object| google_tag_data string| GoogleAnalyticsObject function| fbq function| _fbq object| GlobalAdalyserNamespace function| adalyserTracker string| _fs_loaded function| _fs_shutdown object| gaGlobal object| gaData function| GooglemKTybQhCsO function| google_trackConversion object| GooglebQhCsO function| adalyserModules function| trackerCore function| rng object| _rnds8 undefined| _rnds function| parse function| unparse function| v1 function| v4 object| _byteToHex object| _hexToByte object| _seedBytes object| _nodeId number| _clockseq number| _lastMSecs number| _lastNSecs function| uuid function| cookie string| queueName function| queue function| sha1 function| api object| mutState object| AdalyserTracker

23 Cookies

Domain/Path Name / Value
.duolingo.com/ Name: __adal_ca
Value: so%3Ddirect%26me%3Dnone%26ca%3Ddirect%26co%3D%28not%2520set%29%26ke%3D%28not%2520set%29
.duolingo.com/ Name: __adal_id
Value: af3e8092-53dd-4327-b714-c192dbec6b33.1619046719.1.1619046719.1619046719.bbf457ac-30d8-481b-93fd-4ca0a087e393
www.duolingo.com/ Name: AWSALBCORS
Value: PxJtCdWjq38Ryh/O5rKnR0zrPYsK/ioTYh/yuYvjXnNE+7Bpi6lZ23HK7343egW8nhf5yfVQCuO/w3KQyNjxKGkTtXKbHwfzCVA4YVw+aShoi65/oTNfzcBAjutw
.doubleclick.net/ Name: IDE
Value: AHWqTUnfS14ZWWYsjS5ijOHN8RqvaCPcTUPj9pIKHuS9NXumBpFvSdHDo6rW5m87
.duolingo.com/ Name: __adal_ses
Value: *
.duolingo.com/ Name: _px3
Value: 0e3bb0ec75ebc066df4245ac34279a63019e155b5ca58ffb7f0b75ee1c101795:cby18w/iack0Hly+9qQgzvu+0fiWwAdBp+0jdiEcHzVMxNhs3Km4OGcGqTrtvqyRT7I+8Z0F6bedbb6vDKrfFg==:1000:LLFh9/OeWqNIpRJqfiZRfeEpEG9Z2S4mGDZRI3dAM8utfezG/1tdW8DWQ5ggg3UFnKlKlrQkBDBSlYXcTDrmeJ/ENwkyNFDt3NWxP3Pf4MmlSUB8RxH4sngBO3koxXtTLmPRXTEEGQ+2DIMtRdGlUmfLAUb3wLdJGs9edqkLHX8=
.duolingo.com/ Name: tsl
Value: 1619046718142
.duolingo.com/ Name: _ga
Value: GA1.2.129998210.1619046718
.duolingo.com/ Name: _gcl_au
Value: 1.1.669409411.1619046718
.duolingo.com/ Name: _fbp
Value: fb.1.1619046718509.1509967065
www.duolingo.com/ Name: FPC
Value: 5d71eab2-a13b-406a-a167-10b147626b7d
.duolingo.com/ Name: lp
Value: splash
.duolingo.com/ Name: lr
Value:
.duolingo.com/ Name: __adal_cw
Value: 1619046718555
.duolingo.com/ Name: initial_referrer
Value: $direct
.duolingo.com/ Name: _gat_UA-21595814-1
Value: 1
.duolingo.com/ Name: _gid
Value: GA1.2.1269648523.1619046718
.duolingo.com/ Name: lu
Value: https://www.duolingo.com/
.duolingo.com/ Name: logged_out_uuid
Value: b3e3f908-9126-4747-907b-94432cb01131
www.duolingo.com/ Name: AWSALB
Value: PxJtCdWjq38Ryh/O5rKnR0zrPYsK/ioTYh/yuYvjXnNE+7Bpi6lZ23HK7343egW8nhf5yfVQCuO/w3KQyNjxKGkTtXKbHwfzCVA4YVw+aShoi65/oTNfzcBAjutw
.duolingo.com/ Name: _pxvid
Value: f8c2f7d8-a2f6-11eb-89c6-0242ac120005
www.duolingo.com/ Name: wuuid
Value: 7d823ca4-df04-45ef-b0e0-c718d3d4407d
.duolingo.com/ Name: lang
Value: en

Security Headers

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

Header Value
X-Frame-Options SAMEORIGIN

Indicators

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

9814127.fls.doubleclick.net
adservice.google.com
adservice.google.de
brb.duolingo.com
c0.adalyser.com
client.perimeterx.net
cnv.event.prod.bidr.io
collector-pxasqjfz9w.px-cloud.net
connect.facebook.net
ct.pinterest.com
d35aaqx5ub95lt.cloudfront.net
edge.fullstory.com
excess.duolingo.com
googleads.g.doubleclick.net
insight.adsrvr.org
pixel.pointmediatracker.com
s.pinimg.com
stats.g.doubleclick.net
stories.duolingo.com
www.duolingo.com
www.facebook.com
www.google-analytics.com
www.google.com
www.google.de
www.googleadservices.com
www.googletagmanager.com
13.224.193.32
151.101.112.84
151.101.14.110
172.217.16.134
172.217.23.98
18.213.121.197
2600:9000:2190:2800:7:60cd:e840:21
2a00:1450:4001:808::2002
2a00:1450:4001:80e::2002
2a00:1450:4001:80e::2004
2a00:1450:4001:80f::2008
2a00:1450:4001:810::200e
2a00:1450:4001:812::2003
2a00:1450:4001:827::2002
2a00:1450:4001:827::200e
2a00:1450:400c:c06::9a
2a02:26f0:7100:1a5::1931
2a03:2880:f03d:1c:face:b00c:0:3
2a03:2880:f13d:83:face:b00c:0:25de
3.91.139.220
3.94.217.247
35.186.220.184
35.201.112.186
52.210.156.96
52.210.90.219
52.85.14.100
54.216.122.10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