developer.mozilla.org Open in urlscan Pro
2600:9000:2057:e800:2:eb5:8c00:93a1  Public Scan

Submitted URL: https://mdn.io/Structured_clone_algorithm
Effective URL: https://developer.mozilla.org/en-US/docs/Web/API/Web_Workers_API/Structured_clone_algorithm
Submission: On December 29 via api from US — Scanned from DE

Summary

This website contacted 4 IPs in 4 countries across 5 domains to perform 20 HTTP transactions. The main IP is 2600:9000:2057:e800:2:eb5:8c00:93a1, located in United States and belongs to AMAZON-02, US. The main domain is developer.mozilla.org. The Cisco Umbrella rank of the primary domain is 62351.
TLS certificate: Issued by Amazon on September 4th 2022. Valid for: a year.
This is the only time developer.mozilla.org was scanned on urlscan.io!

urlscan.io Verdict: No classification

Domain & IP information

IP Address AS Autonomous System
1 1 2606:4700:303... 13335 (CLOUDFLAR...)
2 40.114.177.156 8075 (MICROSOFT...)
15 2600:9000:205... 16509 (AMAZON-02)
2 2a00:1450:400... 15169 (GOOGLE)
1 2a00:1450:400... 15169 (GOOGLE)
20 4
Apex Domain
Subdomains
Transfer
15 mozilla.org
developer.mozilla.org — Cisco Umbrella Rank: 62351
517 KB
2 google-analytics.com
www.google-analytics.com — Cisco Umbrella Rank: 103
20 KB
2 duckduckgo.com
duckduckgo.com — Cisco Umbrella Rank: 2363
3 KB
1 doubleclick.net
stats.g.doubleclick.net — Cisco Umbrella Rank: 179
443 B
1 mdn.io
mdn.io
475 B
20 5
Domain Requested by
15 developer.mozilla.org duckduckgo.com
developer.mozilla.org
2 www.google-analytics.com developer.mozilla.org
www.google-analytics.com
2 duckduckgo.com
1 stats.g.doubleclick.net www.google-analytics.com
1 mdn.io 1 redirects
20 5
Subject Issuer Validity Valid
*.duckduckgo.com
DigiCert TLS RSA SHA256 2020 CA1
2022-10-20 -
2023-11-20
a year crt.sh
developer.mozilla.org
Amazon
2022-09-04 -
2023-10-02
a year crt.sh
*.google-analytics.com
GTS CA 1C3
2022-11-28 -
2023-02-20
3 months crt.sh
*.g.doubleclick.net
GTS CA 1C3
2022-11-28 -
2023-02-20
3 months crt.sh

This page contains 1 frames:

Primary Page: https://developer.mozilla.org/en-US/docs/Web/API/Web_Workers_API/Structured_clone_algorithm
Frame ID: 2C37F8BCC60647218E11569BF16BDF87
Requests: 20 HTTP requests in this frame

Screenshot

Page Title

The structured clone algorithm - Web APIs | MDNMDN Web DocsMDN logoMozilla logo

Page URL History Show full URLs

  1. https://mdn.io/Structured_clone_algorithm HTTP 303
    https://duckduckgo.com/?q=%21%20site%3Adeveloper.mozilla.org%20Structured_clone_algorithm Page URL
  2. https://duckduckgo.com/l/?uddg=https%3A%2F%2Fdeveloper.mozilla.org%2Fen%2DUS%2Fdocs%2FWeb%2FAPI%2FW... Page URL
  3. https://developer.mozilla.org/en-US/docs/Web/API/Web_Workers_API/Structured_clone_algorithm Page URL

Detected technologies

Overall confidence: 100%
Detected patterns
  • google-analytics\.com/(?:ga|urchin|analytics)\.js

Page Statistics

20
Requests

100 %
HTTPS

80 %
IPv6

5
Domains

5
Subdomains

4
IPs

4
Countries

541 kB
Transfer

1153 kB
Size

3
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. https://mdn.io/Structured_clone_algorithm HTTP 303
    https://duckduckgo.com/?q=%21%20site%3Adeveloper.mozilla.org%20Structured_clone_algorithm Page URL
  2. https://duckduckgo.com/l/?uddg=https%3A%2F%2Fdeveloper.mozilla.org%2Fen%2DUS%2Fdocs%2FWeb%2FAPI%2FWeb_Workers_API%2FStructured_clone_algorithm&rut=e2971638b28c7ba06bbd0cc4492fe7a2e5ca08a6bc419b263ac735732627e1ed Page URL
  3. https://developer.mozilla.org/en-US/docs/Web/API/Web_Workers_API/Structured_clone_algorithm Page URL

Redirected requests

There were HTTP redirect chains for the following requests:

Request Chain 0
  • https://mdn.io/Structured_clone_algorithm HTTP 303
  • https://duckduckgo.com/?q=%21%20site%3Adeveloper.mozilla.org%20Structured_clone_algorithm

20 HTTP transactions

Resource
Path
Size
x-fer
Type
MIME-Type
/
duckduckgo.com/
Redirect Chain
  • https://mdn.io/Structured_clone_algorithm
  • https://duckduckgo.com/?q=%21%20site%3Adeveloper.mozilla.org%20Structured_clone_algorithm
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Primary Request Structured_clone_algorithm
developer.mozilla.org/en-US/docs/Web/API/Web_Workers_API/
52 KB
13 KB
Document
General
Full URL
https://developer.mozilla.org/en-US/docs/Web/API/Web_Workers_API/Structured_clone_algorithm
Requested by
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URL: https://duckduckgo.com/l/?uddg=https%3A%2F%2Fdeveloper.mozilla.org%2Fen%2DUS%2Fdocs%2FWeb%2FAPI%2FWeb_Workers_API%2FStructured_clone_algorithm&rut=e2971638b28c7ba06bbd0cc4492fe7a2e5ca08a6bc419b263ac735732627e1ed
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URL: https://developer.mozilla.org/static/js/main.f43da69a.js
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2600:9000:2057:e800:2:eb5:8c00:93a1 , United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software
/
Resource Hash
98dc9beb16d446143143c44d78383aab73a549b146ee7e60d7c5e8c795fc5495

Request headers

accept-language
de-DE,de;q=0.9
Referer
https://developer.mozilla.org/en-US/docs/Web/API/Web_Workers_API/Structured_clone_algorithm
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/108.0.5359.124 Safari/537.36

Response headers

date
Thu, 29 Dec 2022 07:32:02 GMT
via
1.1 163be08bc1bc44818353c4fd88655bee.cloudfront.net (CloudFront)
x-amz-cf-pop
FRA6-C1
content-length
162
x-amz-cf-id
RiHpPN8wiNzz1wUfy6yWYfjgFGDb3ZSv23jROV680IlvNtjZp5ChpA==
x-cache
Miss from cloudfront
content-type
application/json
709.c22384f7.chunk.js
developer.mozilla.org/static/js/
4 KB
2 KB
Script
General
Full URL
https://developer.mozilla.org/static/js/709.c22384f7.chunk.js
Requested by
Host: developer.mozilla.org
URL: https://developer.mozilla.org/static/js/main.f43da69a.js
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2600:9000:2057:e800:2:eb5:8c00:93a1 , United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software
AmazonS3 /
Resource Hash
8f723390545f2977c444c08f73b16b803cc189192427ee8d30c7a8ebae0925f9
Security Headers
Name Value
Strict-Transport-Security max-age=63072000
X-Content-Type-Options nosniff
X-Frame-Options DENY
X-Xss-Protection 1; mode=block

Request headers

accept-language
de-DE,de;q=0.9
Referer
https://developer.mozilla.org/en-US/docs/Web/API/Web_Workers_API/Structured_clone_algorithm
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/108.0.5359.124 Safari/537.36

Response headers

date
Thu, 29 Dec 2022 00:41:00 GMT
strict-transport-security
max-age=63072000
x-content-type-options
nosniff
content-encoding
br
x-amz-cf-pop
FRA6-C1
age
24664
via
1.1 163be08bc1bc44818353c4fd88655bee.cloudfront.net (CloudFront)
x-cache
Hit from cloudfront
x-xss-protection
1; mode=block
last-modified
Mon, 19 Dec 2022 11:20:21 GMT
server
AmazonS3
etag
W/"ae12e7b6ee0dd09625f73e5eb0323ddc"
x-frame-options
DENY
vary
Accept-Encoding
content-type
text/javascript; charset=utf-8
cache-control
max-age=31536000, public
x-amz-cf-id
xHxvZTaOGYEgCz-hWVB4o2o6U-xQCOoJ9KfCMhtZH8NIXrqFEctu9Q==
collect
www.google-analytics.com/j/
4 B
213 B
XHR
General
Full URL
https://www.google-analytics.com/j/collect?v=1&_v=j98&aip=1&a=1333373983&t=pageview&_s=1&dl=https%3A%2F%2Fdeveloper.mozilla.org%2Fen-US%2Fdocs%2FWeb%2FAPI%2FWeb_Workers_API%2FStructured_clone_algorithm&dr=https%3A%2F%2Fduckduckgo.com%2F&ul=en-us&de=UTF-8&dt=The%20structured%20clone%20algorithm%20-%20Web%20APIs%20%7C%20MDN&sd=24-bit&sr=1600x1200&vp=1600x1200&je=0&_u=YEBAAAABAAAAACAAI~&jid=859418763&gjid=266922471&cid=1968426083.1672299123&tid=UA-36116321-5&_gid=904940517.1672299123&_r=1&_slc=1&z=833581136
Requested by
Host: www.google-analytics.com
URL: https://www.google-analytics.com/analytics.js
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2a00:1450:4001:828::200e Frankfurt am Main, Germany, ASN15169 (GOOGLE, US),
Reverse DNS
Software
Golfe2 /
Resource Hash
aec60bc104db041b1512185839f18f52986df7e569e5445f740dd60f763fbca8
Security Headers
Name Value
X-Content-Type-Options nosniff

Request headers

Referer
https://developer.mozilla.org/
accept-language
de-DE,de;q=0.9
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/108.0.5359.124 Safari/537.36
Content-Type
text/plain

Response headers

pragma
no-cache
date
Thu, 29 Dec 2022 07:32:03 GMT
x-content-type-options
nosniff
last-modified
Sun, 17 May 1998 03:00:00 GMT
server
Golfe2
content-type
text/plain
access-control-allow-origin
https://developer.mozilla.org
cache-control
no-cache, no-store, must-revalidate
access-control-allow-credentials
true
cross-origin-resource-policy
cross-origin
alt-svc
h3=":443"; ma=2592000,h3-29=":443"; ma=2592000,h3-Q050=":443"; ma=2592000,h3-Q046=":443"; ma=2592000,h3-Q043=":443"; ma=2592000,quic=":443"; ma=2592000; v="46,43"
content-length
4
expires
Fri, 01 Jan 1990 00:00:00 GMT
collect
stats.g.doubleclick.net/j/
1 B
443 B
XHR
General
Full URL
https://stats.g.doubleclick.net/j/collect?t=dc&aip=1&_r=3&v=1&_v=j98&tid=UA-36116321-5&cid=1968426083.1672299123&jid=859418763&gjid=266922471&_gid=904940517.1672299123&_u=YEBAAAAAAAAAACAAI~&z=644786229
Requested by
Host: www.google-analytics.com
URL: https://www.google-analytics.com/analytics.js
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2a00:1450:400c:c06::9b Brussels, Belgium, ASN15169 (GOOGLE, US),
Reverse DNS
Software
Golfe2 /
Resource Hash
6b86b273ff34fce19d6b804eff5a3f5747ada4eaa22f1d49c01e52ddb7875b4b
Security Headers
Name Value
Strict-Transport-Security max-age=10886400; includeSubDomains; preload
X-Content-Type-Options nosniff

Request headers

Referer
https://developer.mozilla.org/
accept-language
de-DE,de;q=0.9
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/108.0.5359.124 Safari/537.36
Content-Type
text/plain

Response headers

pragma
no-cache
strict-transport-security
max-age=10886400; includeSubDomains; preload
date
Thu, 29 Dec 2022 07:32:03 GMT
x-content-type-options
nosniff
last-modified
Sun, 17 May 1998 03:00:00 GMT
server
Golfe2
content-type
text/plain
access-control-allow-origin
https://developer.mozilla.org
cache-control
no-cache, no-store, must-revalidate
access-control-allow-credentials
true
cross-origin-resource-policy
cross-origin
alt-svc
h3=":443"; ma=2592000,h3-29=":443"; ma=2592000,h3-Q050=":443"; ma=2592000,h3-Q046=":443"; ma=2592000,h3-Q043=":443"; ma=2592000,quic=":443"; ma=2592000; v="46,43"
content-length
1
expires
Fri, 01 Jan 1990 00:00:00 GMT
ec22c412-bc09-4b99-95cd-22c5bbdf4f0f
developer.mozilla.org/submit/mdn-yari/page/1/
0
0
Fetch
General
Full URL
https://developer.mozilla.org/submit/mdn-yari/page/1/ec22c412-bc09-4b99-95cd-22c5bbdf4f0f
Requested by
Host: developer.mozilla.org
URL: https://developer.mozilla.org/static/js/main.f43da69a.js
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2600:9000:2057:e800:2:eb5:8c00:93a1 , United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software
openresty /
Resource Hash
Security Headers
Name Value
Strict-Transport-Security max-age=31536000
X-Frame-Options DENY

Request headers

Content-Encoding
gzip
Referer
https://developer.mozilla.org/en-US/docs/Web/API/Web_Workers_API/Structured_clone_algorithm
X-Telemetry-Agent
Glean/1.3.0 (JS on Windows)
accept-language
de-DE,de;q=0.9
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/108.0.5359.124 Safari/537.36
Content-Type
application/json; charset=utf-8

Response headers

date
Thu, 29 Dec 2022 07:32:03 GMT
strict-transport-security
max-age=31536000
via
1.1 google, 1.1 a56d6b55603697d6c44b19d4f907baaa.cloudfront.net (CloudFront)
server
openresty
x-amz-cf-pop
FRA6-C1
x-frame-options
DENY
access-control-allow-methods
GET, POST, PUT, OPTIONS
content-type
text/plain; charset=utf-8
access-control-allow-origin
https://developer.mozilla.org
x-cache
Miss from cloudfront
access-control-max-age
1728000
access-control-allow-headers
Accept-Encoding,Connection,Content-Encoding,Content-Length,Content-Type,DNT,Date,Sec-Fetch-Dest,Sec-Fetch-Mode,Sec-Fetch-Site,User-Agent,X-Client-Type,X-Client-Version,X-Debug-ID,X-Forwarded-For,X-Pingsender-Version,X-Pipeline-Proxy,X-Source-Tags,X-Telemetry-Agent
content-length
0
x-amz-cf-id
VSMZkLA53s1xZ3G4NcjbOepzuPN4YjSqUnrhhSGzU-B5lVmRVMFJUA==

Verdicts & Comments Add Verdict or Comment

9 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| oncontentvisibilityautostatechange object| Mozilla object| gaScript function| ga object| webpackChunkclient object| google_tag_data object| gaplugins object| gaGlobal object| gaData

3 Cookies

Domain/Path Name / Value
.mozilla.org/ Name: _ga
Value: GA1.2.1968426083.1672299123
.mozilla.org/ Name: _gid
Value: GA1.2.904940517.1672299123
.mozilla.org/ Name: _gat
Value: 1

2 Console Messages

Source Level URL
Text
security warning
Message:
Error with Permissions-Policy header: Origin trial controlled feature not enabled: 'interest-cohort'.
security warning
Message:
Error with Permissions-Policy header: Origin trial controlled feature not enabled: 'interest-cohort'.

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
Content-Security-Policy default-src 'none' ; connect-src https://duckduckgo.com https://*.duckduckgo.com https://duckduckgogg42xjoc72x3sjasowoarfbgcmvfimaftt6twagswzczad.onion/ ; manifest-src https://duckduckgo.com https://*.duckduckgo.com https://duckduckgogg42xjoc72x3sjasowoarfbgcmvfimaftt6twagswzczad.onion/ ; media-src https://duckduckgo.com https://*.duckduckgo.com https://duckduckgogg42xjoc72x3sjasowoarfbgcmvfimaftt6twagswzczad.onion/ ; script-src blob: https://duckduckgo.com https://*.duckduckgo.com https://duckduckgogg42xjoc72x3sjasowoarfbgcmvfimaftt6twagswzczad.onion/ 'unsafe-inline' 'unsafe-eval' ; font-src data: https://duckduckgo.com https://*.duckduckgo.com https://duckduckgogg42xjoc72x3sjasowoarfbgcmvfimaftt6twagswzczad.onion/ ; img-src data: https://duckduckgo.com https://*.duckduckgo.com https://duckduckgogg42xjoc72x3sjasowoarfbgcmvfimaftt6twagswzczad.onion/ ; style-src https://duckduckgo.com https://*.duckduckgo.com https://duckduckgogg42xjoc72x3sjasowoarfbgcmvfimaftt6twagswzczad.onion/ 'unsafe-inline' ; object-src 'none' ; worker-src blob: ; child-src blob: https://duckduckgo.com https://*.duckduckgo.com https://duckduckgogg42xjoc72x3sjasowoarfbgcmvfimaftt6twagswzczad.onion/ ; frame-src blob: https://duckduckgo.com https://*.duckduckgo.com https://duckduckgogg42xjoc72x3sjasowoarfbgcmvfimaftt6twagswzczad.onion/ ; form-action https://duckduckgo.com https://*.duckduckgo.com https://duckduckgogg42xjoc72x3sjasowoarfbgcmvfimaftt6twagswzczad.onion/ ; frame-ancestors 'self' ; base-uri 'self' ; block-all-mixed-content ;
Strict-Transport-Security max-age=31536000
X-Content-Type-Options nosniff
X-Frame-Options SAMEORIGIN
X-Xss-Protection 1;mode=block

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.

developer.mozilla.org
duckduckgo.com
mdn.io
stats.g.doubleclick.net
www.google-analytics.com
2600:9000:2057:e800:2:eb5:8c00:93a1
2606:4700:3036::ac43:d9a0
2a00:1450:4001:828::200e
2a00:1450:400c:c06::9b
40.114.177.156
0857f86311c9e7859c27fd81331d7c41da61b0f70c24c37737f95f7b5b3ecf10
30de7edcfb3573063b8f942374312ae4f70d4489192a0fdcca305d5eaac404d5
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3c3139b4473af08b61014ba1b4d575cfa854dd5448e95dc1b4dc7d8634ae4bef
4e1de5ba19cf36012c0b081f8d9b7419e0712c45763451248a4c558944ea944a
6b86b273ff34fce19d6b804eff5a3f5747ada4eaa22f1d49c01e52ddb7875b4b
7cdb5ea34953630dda82840c5e16bf5bfc86afdd060317747be3b27ef9b503d5
85f08b5f51e36ca7e961a033c6bb61d7f0e44aa0984646383ecac648e98fdcc8
8f723390545f2977c444c08f73b16b803cc189192427ee8d30c7a8ebae0925f9
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9b53238a52c63e83f135c3fe1bcbd994bda56808dc2fb43651b4b9597eb27d2f
a6acca945d0a5828dd71f5b3a65ec7256977028f790bf1ffbcbe072dbe6c6d5e
aec60bc104db041b1512185839f18f52986df7e569e5445f740dd60f763fbca8
b42e4a056cb5b80c5a315040826866445ec9332f0749e184509ab2d9d3b86719
db82d36951cf99a5dc5604479f249a26e4b3139d4e34a0abf6564d457a36d766
e1cf44e1f1b02d2985c5accb6c7b2fd147a55ada7503c895164cd252ca025086
e3844838fccdd773a216d1eb80d035e40bd0e4f3bb641eb001683c3f59881167
ee980f177a4abfd32bf66d97e1d8c9ca9397245d1d1099116754d2e4049864d8