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engineering.fb.com Open in urlscan Pro
192.0.66.236  Public Scan

Go To Rescan Add Verdict Report
Submitted URL: http://facebookmicrosites.github.io/
Effective URL: https://engineering.fb.com/
Submission: On June 07 via manual from PL — Scanned from PL
 Behaviour Indicators
Similar DOM Content API
Verdicts

Summary

This website contacted 5 IPs in 2 countries across 5 domains to perform 40 HTTP transactions. The main IP is 192.0.66.236, located in San Francisco, United States and belongs to AUTOMATTIC, US. The main domain is engineering.fb.com.
TLS certificate: Issued by DigiCert SHA2 High Assurance Server CA on October 30th 2023. Valid for: a year.
This is the only time engineering.fb.com was scanned on urlscan.io!

urlscan.io Verdict: No classification

Domain & IP information

IP Address AS Autonomous System
2 185.199.111.153 54113 (FASTLY)
1 1 157.240.0.13 32934 (FACEBOOK)
1 1 192.0.66.29 2635 (AUTOMATTIC)
34 192.0.66.236 2635 (AUTOMATTIC)
1 142.250.185.78 15169 (GOOGLE)
2 157.240.0.6 32934 (FACEBOOK)
40 5
2    185.199.111.153 (United States)

ASN54113 (FASTLY, US)
PTR: cdn-185-199-111-153.github.com
facebookmicrosites.github.io
1    157.240.0.13 (Frankfurt am Main, Germany)

ASN32934 (FACEBOOK, US)
PTR: edge-star-shv-02-fra3.facebook.com
code.facebook.com
1    192.0.66.29 (San Francisco, United States)

ASN2635 (AUTOMATTIC, US)
code.fb.com
34    192.0.66.236 (San Francisco, United States)

ASN2635 (AUTOMATTIC, US)
engineering.fb.com
1    142.250.185.78 (United States)

ASN15169 (GOOGLE, US)
PTR: fra16s48-in-f14.1e100.net
www.googleoptimize.com
2    157.240.0.6 (Frankfurt am Main, Germany)

ASN32934 (FACEBOOK, US)
PTR: xx-fbcdn-shv-02-fra3.fbcdn.net
connect.facebook.net
Apex Domain
Subdomains		 Transfer
35 fb.com
code.fb.com
engineering.fb.com
2 MB
2 facebook.net
connect.facebook.net — Cisco Umbrella Rank: 205
89 KB
2 github.io
facebookmicrosites.github.io — Cisco Umbrella Rank: 802725
1 KB
1 googleoptimize.com
www.googleoptimize.com — Cisco Umbrella Rank: 3844
64 KB
1 facebook.com
code.facebook.com
104 B
40 5
Domain Requested by
34 engineering.fb.com engineering.fb.com
2 connect.facebook.net engineering.fb.com
connect.facebook.net
2 facebookmicrosites.github.io
1 www.googleoptimize.com engineering.fb.com
1 code.fb.com 1 redirects
1 code.facebook.com 1 redirects
40 6
Subject Issuer Validity Valid
*.github.io
DigiCert Global G2 TLS RSA SHA256 2020 CA1		 2024-03-15 -
2025-03-14		 a year crt.sh
engineering.fb.com
DigiCert SHA2 High Assurance Server CA		 2023-10-30 -
2024-10-29		 a year crt.sh
*.google-analytics.com
WR2		 2024-05-21 -
2024-08-13		 3 months crt.sh
*.facebook.com
DigiCert SHA2 High Assurance Server CA		 2024-03-17 -
2024-06-15		 3 months crt.sh

This page contains 1 frames:

Primary Page: https://engineering.fb.com/
Frame ID: 9EDD019A268174603E0C1D686BEABEE5
Requests: 40 HTTP requests in this frame

Screenshot
Live screenshot
Full Image

Page Title

Engineering at Meta - Engineering at Meta Blog

Page URL History Show full URLs

  1. http://facebookmicrosites.github.io/ HTTP 307
    https://facebookmicrosites.github.io/ Page URL
  2. https://code.facebook.com/ HTTP 301
    https://code.fb.com/ HTTP 301
    https://engineering.fb.com/ Page URL

Detected technologies

Overall confidence: 100%
Detected patterns
  • <link rel=["']stylesheet["'] [^>]+/wp-(?:content|includes)/
  • /wp-(?:content|includes)/
Overall confidence: 100%
Detected patterns
  • //connect\.facebook\.([a-z]+)/[^/]*/[a-z]*\.js
Overall confidence: 100%
Detected patterns
  • googleoptimize\.com/optimize\.js
Overall confidence: 100%
Detected patterns
  • prism\.js

Page Statistics

40
Requests

98 %
HTTPS

0 %
IPv6

5
Domains

6
Subdomains

5
IPs

2
Countries

1708 kB
Transfer

2936 kB
Size

0
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://facebookmicrosites.github.io/ HTTP 307
    https://facebookmicrosites.github.io/ Page URL
  2. https://code.facebook.com/ HTTP 301
    https://code.fb.com/ HTTP 301
    https://engineering.fb.com/ Page URL

Redirected requests

There were HTTP redirect chains for the following requests:

Request Chain 0
  • http://facebookmicrosites.github.io/ HTTP 307
  • https://facebookmicrosites.github.io/

40 HTTP transactions

Resource
Path		 Size
x-fer		 Type
MIME-Type
/
facebookmicrosites.github.io/
Redirect Chain
  • http://facebookmicrosites.github.io/
  • https://facebookmicrosites.github.io/
113 B
534 B 		Document
General
Check archive.org
Download Go to
Full URL
https://facebookmicrosites.github.io/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
185.199.111.153 , United States, ASN54113 (FASTLY, US),
Reverse DNS
cdn-185-199-111-153.github.com
Software
GitHub.com /
Resource Hash
867954431ea93425cb69b7fcbbfe5cb30155fa750a561bd222825886d3d77bff
Security Headers
Name Value
Strict-Transport-Security max-age=31557600

Request headers

Accept-Language
pl-PL,pl;q=0.9;q=0.9
Upgrade-Insecure-Requests
1
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/125.0.0.0 Safari/537.36

Response headers

accept-ranges
bytes
access-control-allow-origin
*
age
0
cache-control
max-age=600
content-length
113
content-type
text/html; charset=utf-8
date
Fri, 07 Jun 2024 22:29:48 GMT
etag
"5a7c83e9-71"
expires
Fri, 07 Jun 2024 14:10:29 GMT
last-modified
Thu, 08 Feb 2018 17:07:53 GMT
permissions-policy
interest-cohort=()
server
GitHub.com
strict-transport-security
max-age=31557600
vary
Accept-Encoding
via
1.1 varnish
x-cache
HIT
x-cache-hits
0
x-fastly-request-id
320d9edd47217c54397944a820ffbf91a9530475
x-github-request-id
4F8C:2613B6:1C64D68:1D4CD6B:6663127C
x-proxy-cache
MISS
x-served-by
cache-fra-eddf8230034-FRA
x-timer
S1717799388.963776,VS0,VE101

Redirect headers

Location
https://facebookmicrosites.github.io/
Non-Authoritative-Reason
HttpsUpgrades
Primary Request /
engineering.fb.com/
Redirect Chain
  • https://code.facebook.com/
  • https://code.fb.com/
  • https://engineering.fb.com/
72 KB
15 KB 		Document
General
Check archive.org
Download Go to
Full URL
https://engineering.fb.com/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
192.0.66.236 San Francisco, United States, ASN2635 (AUTOMATTIC, US),
Reverse DNS
Software
nginx / WordPress VIP <https://wpvip.com>
Resource Hash
687ec4a02fa924dcb8e843d303041c1131657aa68adca319e09ffeba8f927844
Security Headers
Name Value
Strict-Transport-Security max-age=31536000;includeSubdomains;preload

Request headers

Accept-Language
pl-PL,pl;q=0.9;q=0.9
Referer
https://facebookmicrosites.github.io/
Upgrade-Insecure-Requests
1
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/125.0.0.0 Safari/537.36
sec-ch-ua
"Google Chrome";v="125", "Not:A-Brand";v="8", "Chromium";v="125"
sec-ch-ua-mobile
?0
sec-ch-ua-platform
"Win32"

Response headers

accept-ranges
bytes
cache-control
max-age=300, must-revalidate
content-encoding
br
content-type
text/html; charset=UTF-8
date
Fri, 07 Jun 2024 22:29:49 GMT
host-header
a9130478a60e5f9135f765b23f26593b
link
<https://engineering.fb.com/wp-json/>; rel="https://api.w.org/" <https://wp.me/a0Lhq>; rel=shortlink
server
nginx
strict-transport-security
max-age=31536000;includeSubdomains;preload
vary
Accept-Encoding, accept, content-type
x-cache
HIT
x-hacker
If you're reading this, you should visit wpvip.com/careers and apply to join the fun, mention this header.
x-powered-by
WordPress VIP <https://wpvip.com>
x-rq
hhn2 111 253 443

Redirect headers

content-type
text/html; charset=utf-8
date
Fri, 07 Jun 2024 22:29:48 GMT
location
https://engineering.fb.com/
server
nginx
strict-transport-security
max-age=31536000;includeSubdomains;preload
x-cache
HIT
x-rq
hhn1 111 253 443
favicon.ico
facebookmicrosites.github.io/ 		1 KB
707 B 		Other
General
Check archive.org
Download Go to
Full URL
https://facebookmicrosites.github.io/favicon.ico
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
185.199.111.153 , United States, ASN54113 (FASTLY, US),
Reverse DNS
cdn-185-199-111-153.github.com
Software
GitHub.com /
Resource Hash
Security Headers
Name Value
Strict-Transport-Security max-age=31557600

Request headers

sec-ch-ua
"Google Chrome";v="125", "Not:A-Brand";v="8", "Chromium";v="125"
Referer
https://facebookmicrosites.github.io/
Accept-Language
pl-PL,pl;q=0.9;q=0.9
sec-ch-ua-mobile
?0
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/125.0.0.0 Safari/537.36
sec-ch-ua-platform
"Win32"

Response headers

x-fastly-request-id
5bc7600ccad0c3bcda72f8d546c073e8c70b8cee
strict-transport-security
max-age=31557600
content-encoding
gzip
via
1.1 varnish
date
Fri, 07 Jun 2024 22:29:48 GMT
age
1510
x-cache
HIT
x-cache-hits
0
content-length
559
x-served-by
cache-fra-eddf8230034-FRA
server
GitHub.com
x-github-request-id
D73C:2EB690:20699EA:21734BA:666383F5
x-timer
S1717799388.129981,VS0,VE1
etag
W/"5a7c83e9-46e"
vary
Accept-Encoding
content-type
text/html; charset=utf-8
access-control-allow-origin
*
permissions-policy
interest-cohort=()
accept-ranges
bytes
x-proxy-cache
MISS
optimize.js
www.googleoptimize.com/ 		176 KB
64 KB 		Script
General
Check archive.org
Download Go to
Full URL
https://www.googleoptimize.com/optimize.js?id=OPT-TPNDQC5
Requested by
Host: engineering.fb.com
URL: https://engineering.fb.com/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
142.250.185.78 , United States, ASN15169 (GOOGLE, US),
Reverse DNS
fra16s48-in-f14.1e100.net
Software
Google Tag Manager /
Resource Hash
30a29ec45ce2491fbf1a03c89d0aa0013e2089f9c027265a0817c0e64fa3a17e
Security Headers
Name Value
Strict-Transport-Security max-age=31536000; includeSubDomains
X-Xss-Protection 0

Request headers

sec-ch-ua
"Google Chrome";v="125", "Not:A-Brand";v="8", "Chromium";v="125"
Referer
https://engineering.fb.com/
Accept-Language
pl-PL,pl;q=0.9;q=0.9
sec-ch-ua-mobile
?0
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/125.0.0.0 Safari/537.36
sec-ch-ua-platform
"Win32"

Response headers

date
Fri, 07 Jun 2024 22:29:49 GMT
content-encoding
br
strict-transport-security
max-age=31536000; includeSubDomains
cross-origin-resource-policy
cross-origin
alt-svc
h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
content-length
65209
x-xss-protection
0
last-modified
Fri, 07 Jun 2024 21:00:00 GMT
server
Google Tag Manager
vary
Accept-Encoding
content-type
application/javascript; charset=UTF-8
access-control-allow-origin
*
cache-control
private, max-age=900
access-control-allow-credentials
true
access-control-allow-headers
Cache-Control
expires
Fri, 07 Jun 2024 22:29:49 GMT
style.min.css
engineering.fb.com/wp-includes/css/dist/block-library/ 		111 KB
15 KB 		Stylesheet
General
Check archive.org
Download Go to
Full URL
https://engineering.fb.com/wp-includes/css/dist/block-library/style.min.css?m=1717605114g
Requested by
Host: engineering.fb.com
URL: https://engineering.fb.com/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
192.0.66.236 San Francisco, United States, ASN2635 (AUTOMATTIC, US),
Reverse DNS
Software
nginx /
Resource Hash
98cecf88a23542fa047ce46eedb650b5c5128761ed4386c0977b847094ddfa20
Security Headers
Name Value
Strict-Transport-Security max-age=31536000;includeSubdomains;preload

Request headers

sec-ch-ua
"Google Chrome";v="125", "Not:A-Brand";v="8", "Chromium";v="125"
Referer
https://engineering.fb.com/
Accept-Language
pl-PL,pl;q=0.9;q=0.9
sec-ch-ua-mobile
?0
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/125.0.0.0 Safari/537.36
sec-ch-ua-platform
"Win32"

Response headers

date
Fri, 07 Jun 2024 22:29:49 GMT
content-encoding
br
strict-transport-security
max-age=31536000;includeSubdomains;preload
last-modified
Wed, 05 Jun 2024 16:31:54 GMT
server
nginx
x-rq
hhn2 111 253 443
etag
W/"666092fa-1bae5"
vary
Accept-Encoding
x-cache
HIT
content-type
text/css
cache-control
max-age=31536000
accept-ranges
bytes
/
engineering.fb.com/_static/ 		15 KB
4 KB 		Stylesheet
General
Check archive.org
Download Go to
Full URL
https://engineering.fb.com/_static/??-eJzTLy/QzcxLzilNSS3WzyrWz01NyUxMzUnNTc0rQeEU5CRWphbp5qSmJyZX6uVm5uklFxfr6OPTDpRD5sM02efaGpobmpsZmBoamgIARK0u3Q==
Requested by
Host: engineering.fb.com
URL: https://engineering.fb.com/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
192.0.66.236 San Francisco, United States, ASN2635 (AUTOMATTIC, US),
Reverse DNS
Software
nginx /
Resource Hash
3d2c10cf69410c10177fc6e56937d05151b182841fa6aee36f651d587d91fbb8
Security Headers
Name Value
Strict-Transport-Security max-age=31536000;includeSubdomains;preload

Request headers

sec-ch-ua
"Google Chrome";v="125", "Not:A-Brand";v="8", "Chromium";v="125"
Referer
https://engineering.fb.com/
Accept-Language
pl-PL,pl;q=0.9;q=0.9
sec-ch-ua-mobile
?0
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/125.0.0.0 Safari/537.36
sec-ch-ua-platform
"Win32"

Response headers

date
Fri, 07 Jun 2024 22:29:49 GMT
content-encoding
br
strict-transport-security
max-age=31536000;includeSubdomains;preload
last-modified
Wed, 05 Jun 2024 16:31:55 GMT
server
nginx
x-rq
hhn2 111 253 443
vary
Accept-Encoding
x-cache
HIT
content-type
text/css;charset=utf-8
cache-control
max-age=31536000
accept-ranges
bytes
related-posts-block-styles.min.css
engineering.fb.com/wp-content/mu-plugins/search/elasticpress/dist/css/ 		222 B
456 B 		Stylesheet
General
Check archive.org
Download Go to
Full URL
https://engineering.fb.com/wp-content/mu-plugins/search/elasticpress/dist/css/related-posts-block-styles.min.css?m=1717522010g
Requested by
Host: engineering.fb.com
URL: https://engineering.fb.com/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
192.0.66.236 San Francisco, United States, ASN2635 (AUTOMATTIC, US),
Reverse DNS
Software
nginx /
Resource Hash
9790593b4acafa770479511a888914881594976c5dcad980c82e781c5625ff44
Security Headers
Name Value
Strict-Transport-Security max-age=31536000;includeSubdomains;preload

Request headers

sec-ch-ua
"Google Chrome";v="125", "Not:A-Brand";v="8", "Chromium";v="125"
Referer
https://engineering.fb.com/
Accept-Language
pl-PL,pl;q=0.9;q=0.9
sec-ch-ua-mobile
?0
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/125.0.0.0 Safari/537.36
sec-ch-ua-platform
"Win32"

Response headers

date
Fri, 07 Jun 2024 22:29:49 GMT
strict-transport-security
max-age=31536000;includeSubdomains;preload
x-rq
hhn2 111 254 443
last-modified
Tue, 04 Jun 2024 17:26:50 GMT
server
nginx
etag
"665f4e5a-de"
x-cache
HIT
content-type
text/css
cache-control
max-age=31536000
accept-ranges
bytes
content-length
222
/
engineering.fb.com/_static/ 		567 KB
76 KB 		Stylesheet
General
Check archive.org
Download Go to
Full URL
https://engineering.fb.com/_static/??-eJxlzdEKwjAMheEXMo2tyvBCfBZN41ZdumIyfH3bOUHw9uP8HHwVoCkbZ8Myzn3KipX6WJ7NtXlMathkBUeqG/wJbWBhRZoiw+1aWT5N3SENaYywLJyk/NfKDN/fO1u50AP8zu2XdoXWnOXkO98dQtiG4xskiEFT
Requested by
Host: engineering.fb.com
URL: https://engineering.fb.com/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
192.0.66.236 San Francisco, United States, ASN2635 (AUTOMATTIC, US),
Reverse DNS
Software
nginx /
Resource Hash
96feaa061a9a436157cdc1a67d3ee5c48cf27cc98f52a176085bc946296814db
Security Headers
Name Value
Strict-Transport-Security max-age=31536000;includeSubdomains;preload

Request headers

sec-ch-ua
"Google Chrome";v="125", "Not:A-Brand";v="8", "Chromium";v="125"
Referer
https://engineering.fb.com/
Accept-Language
pl-PL,pl;q=0.9;q=0.9
sec-ch-ua-mobile
?0
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/125.0.0.0 Safari/537.36
sec-ch-ua-platform
"Win32"

Response headers

date
Fri, 07 Jun 2024 22:29:49 GMT
content-encoding
br
strict-transport-security
max-age=31536000;includeSubdomains;preload
last-modified
Tue, 04 Jun 2024 17:27:09 GMT
server
nginx
x-rq
hhn2 111 254 443
vary
Accept-Encoding
x-cache
HIT
content-type
text/css;charset=utf-8
cache-control
max-age=31536000
accept-ranges
bytes
gdprconsent.js
engineering.fb.com/wp-content/plugins/wp-gdpr-consent/dist/ 		7 KB
3 KB 		Script
General
Check archive.org
Download Go to
Full URL
https://engineering.fb.com/wp-content/plugins/wp-gdpr-consent/dist/gdprconsent.js?ver=2.0.0
Requested by
Host: engineering.fb.com
URL: https://engineering.fb.com/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
192.0.66.236 San Francisco, United States, ASN2635 (AUTOMATTIC, US),
Reverse DNS
Software
nginx /
Resource Hash
28d7cefcb8d905642b38655f85c9c3ff9ab995b8ccb9e4d4533ff0be0f4df530
Security Headers
Name Value
Strict-Transport-Security max-age=31536000;includeSubdomains;preload

Request headers

sec-ch-ua
"Google Chrome";v="125", "Not:A-Brand";v="8", "Chromium";v="125"
Referer
https://engineering.fb.com/
Accept-Language
pl-PL,pl;q=0.9;q=0.9
sec-ch-ua-mobile
?0
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/125.0.0.0 Safari/537.36
sec-ch-ua-platform
"Win32"

Response headers

date
Fri, 07 Jun 2024 22:29:49 GMT
content-encoding
br
strict-transport-security
max-age=31536000;includeSubdomains;preload
last-modified
Tue, 22 Aug 2023 12:44:53 GMT
server
nginx
x-rq
hhn2 111 254 443
etag
W/"64e4adc5-1b00"
vary
Accept-Encoding
x-cache
HIT
content-type
application/javascript
cache-control
max-age=31536000
accept-ranges
bytes
/
engineering.fb.com/_static/ 		118 KB
41 KB 		Script
General
Check archive.org
Download Go to
Full URL
https://engineering.fb.com/_static/??-eJx9y0EKgCAQheELVebCXEVniRxKyWkaR6LbZ+CiVfDgbb5fXdR6XPbsIKlQdmbgu14XPXYhNeoPtdGvPAt88XKgAIqSDWJJMjrgJDzTW9NBBFz5FEdttR16o7UJD/fjM/4=
Requested by
Host: engineering.fb.com
URL: https://engineering.fb.com/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
192.0.66.236 San Francisco, United States, ASN2635 (AUTOMATTIC, US),
Reverse DNS
Software
nginx /
Resource Hash
3bd47bed84470b3207347025097bc09de1d98f29b1de9e7f7539819f55a2f307
Security Headers
Name Value
Strict-Transport-Security max-age=31536000;includeSubdomains;preload

Request headers

sec-ch-ua
"Google Chrome";v="125", "Not:A-Brand";v="8", "Chromium";v="125"
Referer
https://engineering.fb.com/
Accept-Language
pl-PL,pl;q=0.9;q=0.9
sec-ch-ua-mobile
?0
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/125.0.0.0 Safari/537.36
sec-ch-ua-platform
"Win32"

Response headers

date
Fri, 07 Jun 2024 22:29:49 GMT
content-encoding
br
strict-transport-security
max-age=31536000;includeSubdomains;preload
last-modified
Wed, 05 Jun 2024 16:31:55 GMT
server
nginx
x-rq
hhn2 111 253 443
vary
Accept-Encoding
x-cache
HIT
content-type
application/javascript
cache-control
max-age=31536000
accept-ranges
bytes
FacebookReader-Medium.woff2
engineering.fb.com/wp-content/themes/code-fb-com/fonts/ 		35 KB
35 KB 		Font
General
Check archive.org
Download Go to
Full URL
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date
Fri, 07 Jun 2024 22:29:49 GMT
strict-transport-security
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Full URL
https://engineering.fb.com/wp-content/themes/code-fb-com/fonts/FacebookReader-Regular.woff2
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date
Fri, 07 Jun 2024 22:29:49 GMT
strict-transport-security
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https://engineering.fb.com/wp-content/themes/code-fb-com/fonts/Optimistic_Display_W_Md.woff2
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Response headers

date
Fri, 07 Jun 2024 22:29:49 GMT
strict-transport-security
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Full URL
https://engineering.fb.com/wp-content/uploads/2024/05/Eng-Blog-Self-Serve-Hero-Images-PRIVACY-103-Orange.jpg
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Response headers

date
Fri, 07 Jun 2024 22:29:49 GMT
strict-transport-security
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sec-ch-ua-mobile
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sec-ch-ua-platform
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date
Fri, 07 Jun 2024 22:29:49 GMT
strict-transport-security
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Accept-Language
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sec-ch-ua-mobile
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sec-ch-ua-platform
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Response headers

date
Fri, 07 Jun 2024 22:29:49 GMT
strict-transport-security
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Download Go to Show image
Full URL
https://engineering.fb.com/wp-content/themes/code-fb-com/img/meta_logo_full.svg
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Host: engineering.fb.com
URL: https://engineering.fb.com/
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sec-ch-ua-mobile
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sec-ch-ua-platform
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date
Fri, 07 Jun 2024 22:29:49 GMT
content-encoding
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Download Go to
Full URL
https://engineering.fb.com/_static/??/wp-content/themes/code-fb-com/dist/js/child-theme.min.js,/wp-content/themes/code-fb-com/js/prism.js?m=1692708293j
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URL: https://engineering.fb.com/
Protocol
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sec-ch-ua-mobile
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sec-ch-ua-platform
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date
Fri, 07 Jun 2024 22:29:49 GMT
content-encoding
br
strict-transport-security
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last-modified
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server
nginx
x-rq
hhn2 111 253 443
vary
Accept-Encoding
x-cache
HIT
content-type
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max-age=31536000
accept-ranges
bytes
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Download Go to Show image
Full URL
https://engineering.fb.com/wp-content/themes/code-fb-com/img/icon-search.svg
Requested by
Host: engineering.fb.com
URL: https://engineering.fb.com/
Protocol
H2
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sec-ch-ua
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sec-ch-ua-mobile
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sec-ch-ua-platform
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Response headers

date
Fri, 07 Jun 2024 22:29:49 GMT
strict-transport-security
max-age=31536000;includeSubdomains;preload
x-rq
hhn2 111 254 443
last-modified
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server
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Download Go to Show image
Full URL
https://engineering.fb.com/wp-content/themes/code-fb-com/img/logo-meta.svg
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Host: engineering.fb.com
URL: https://engineering.fb.com/
Protocol
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sec-ch-ua
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sec-ch-ua-mobile
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sec-ch-ua-platform
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Response headers

date
Fri, 07 Jun 2024 22:29:49 GMT
content-encoding
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strict-transport-security
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last-modified
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server
nginx
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hhn2 111 254 443
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Full URL
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sec-ch-ua-mobile
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sec-ch-ua-platform
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Response headers

date
Fri, 07 Jun 2024 22:29:49 GMT
strict-transport-security
max-age=31536000;includeSubdomains;preload
x-rq
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last-modified
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server
nginx
etag
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Full URL
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sec-ch-ua-mobile
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sec-ch-ua-platform
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Response headers

date
Fri, 07 Jun 2024 22:29:49 GMT
strict-transport-security
max-age=31536000;includeSubdomains;preload
x-rq
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last-modified
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server
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etag
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Full URL
https://engineering.fb.com/wp-content/uploads/2024/04/MTIA-Chip_Social-Share.jpg?w=580&h=326&crop=1
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URL: https://engineering.fb.com/
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Accept-Language
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sec-ch-ua-mobile
?0
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sec-ch-ua-platform
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Response headers

date
Fri, 07 Jun 2024 22:29:49 GMT
strict-transport-security
max-age=31536000;includeSubdomains;preload
x-rq
hhn2 109 84 443
last-modified
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server
nginx
etag
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Accept
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sec-ch-ua-platform
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Response headers

date
Fri, 07 Jun 2024 22:29:49 GMT
strict-transport-security
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engineering.fb.com/wp-content/uploads/2024/03/ 		35 KB
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URL: https://engineering.fb.com/
Protocol
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TLS 1.3, , AES_128_GCM
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sec-ch-ua
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Referer
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Accept-Language
pl-PL,pl;q=0.9;q=0.9
sec-ch-ua-mobile
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sec-ch-ua-platform
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Response headers

date
Fri, 07 Jun 2024 22:29:49 GMT
strict-transport-security
max-age=31536000;includeSubdomains;preload
x-rq
hhn2 109 200 443
last-modified
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engineering.fb.com/wp-content/uploads/2024/03/ 		29 KB
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Protocol
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sec-ch-ua
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Accept-Language
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sec-ch-ua-mobile
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sec-ch-ua-platform
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Response headers

date
Fri, 07 Jun 2024 22:29:49 GMT
strict-transport-security
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14 KB 		Image
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Host: engineering.fb.com
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Protocol
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sec-ch-ua
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Accept-Language
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sec-ch-ua-mobile
?0
User-Agent
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sec-ch-ua-platform
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Response headers

date
Fri, 07 Jun 2024 22:29:49 GMT
strict-transport-security
max-age=31536000;includeSubdomains;preload
x-rq
hhn2 109 144 443
last-modified
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server
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etag
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engineering.fb.com/wp-content/uploads/2024/03/ 		115 KB
116 KB 		Image
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sec-ch-ua
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Accept-Language
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sec-ch-ua-mobile
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sec-ch-ua-platform
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Response headers

date
Fri, 07 Jun 2024 22:29:49 GMT
strict-transport-security
max-age=31536000;includeSubdomains;preload
x-rq
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last-modified
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engineering.fb.com/wp-content/uploads/2024/03/ 		110 KB
110 KB 		Image
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Protocol
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sec-ch-ua
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sec-ch-ua-mobile
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sec-ch-ua-platform
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Response headers

date
Fri, 07 Jun 2024 22:29:49 GMT
strict-transport-security
max-age=31536000;includeSubdomains;preload
x-rq
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last-modified
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server
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sec-ch-ua
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Accept-Language
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sec-ch-ua-mobile
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sec-ch-ua-platform
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Response headers

date
Fri, 07 Jun 2024 22:29:49 GMT
strict-transport-security
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x-rq
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last-modified
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server
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2 KB 		Image
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https://engineering.fb.com/wp-content/themes/code-fb-com/img/android.png
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Host: engineering.fb.com
URL: https://engineering.fb.com/
Protocol
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sec-ch-ua
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Accept-Language
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sec-ch-ua-mobile
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sec-ch-ua-platform
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Response headers

date
Fri, 07 Jun 2024 22:29:49 GMT
strict-transport-security
max-age=31536000;includeSubdomains;preload
x-rq
hhn2 111 254 443
last-modified
Tue, 22 Aug 2023 12:44:53 GMT
server
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etag
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https://engineering.fb.com/wp-content/themes/code-fb-com/img/ios.png
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sec-ch-ua
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Accept-Language
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sec-ch-ua-mobile
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sec-ch-ua-platform
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Response headers

date
Fri, 07 Jun 2024 22:29:49 GMT
strict-transport-security
max-age=31536000;includeSubdomains;preload
x-rq
hhn2 111 254 443
last-modified
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server
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https://engineering.fb.com/wp-content/themes/code-fb-com/img/web.png
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Host: engineering.fb.com
URL: https://engineering.fb.com/
Protocol
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sec-ch-ua
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sec-ch-ua-mobile
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sec-ch-ua-platform
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Response headers

date
Fri, 07 Jun 2024 22:29:49 GMT
strict-transport-security
max-age=31536000;includeSubdomains;preload
x-rq
hhn2 111 254 443
last-modified
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server
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etag
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2 KB 		Image
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Full URL
https://engineering.fb.com/wp-content/themes/code-fb-com/img/backend.png
Requested by
Host: engineering.fb.com
URL: https://engineering.fb.com/
Protocol
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sec-ch-ua
"Google Chrome";v="125", "Not:A-Brand";v="8", "Chromium";v="125"
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Accept-Language
pl-PL,pl;q=0.9;q=0.9
sec-ch-ua-mobile
?0
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sec-ch-ua-platform
"Win32"

Response headers

date
Fri, 07 Jun 2024 22:29:49 GMT
strict-transport-security
max-age=31536000;includeSubdomains;preload
x-rq
hhn2 111 254 443
last-modified
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server
nginx
etag
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https://engineering.fb.com/wp-content/themes/code-fb-com/img/hardware.png
Requested by
Host: engineering.fb.com
URL: https://engineering.fb.com/
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sec-ch-ua
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sec-ch-ua-mobile
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sec-ch-ua-platform
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Response headers

date
Fri, 07 Jun 2024 22:29:49 GMT
strict-transport-security
max-age=31536000;includeSubdomains;preload
x-rq
hhn2 111 253 443
last-modified
Tue, 22 Aug 2023 12:44:53 GMT
server
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etag
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4 KB 		Script
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Full URL
https://connect.facebook.net/en_US/sdk.js
Requested by
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sec-ch-ua-mobile
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sec-ch-ua-platform
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Response headers

strict-transport-security
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Fri, 07 Jun 2024 22:29:50 GMT
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content-type
application/x-javascript; charset=utf-8
access-control-allow-origin
*
origin-agent-cluster
?0
access-control-expose-headers
X-FB-Content-MD5
cache-control
public,max-age=1200,stale-while-revalidate=3600
permissions-policy
accelerometer=(), attribution-reporting=(), autoplay=(), battery=(self), bluetooth=(), camera=(), ch-device-memory=(), ch-downlink=(), ch-dpr=(), ch-ect=(), ch-rtt=(), ch-save-data=(), ch-ua-arch=(), ch-ua-bitness=(), ch-viewport-height=(), ch-viewport-width=(), ch-width=(), clipboard-read=(), clipboard-write=(), compute-pressure=(), display-capture=(), encrypted-media=(), fullscreen=(self), gamepad=(), geolocation=(), gyroscope=(), hid=(), idle-detection=(), interest-cohort=(), keyboard-map=(), local-fonts=(), magnetometer=(), microphone=(), midi=(), otp-credentials=(), payment=(), picture-in-picture=(), private-state-token-issuance=(), publickey-credentials-get=(), screen-wake-lock=(), serial=(), shared-storage=(), shared-storage-select-url=(), private-state-token-redemption=(), usb=(), usb-unrestricted=(), unload=(self), window-management=(), xr-spatial-tracking=();report-to="permissions_policy"
x-frame-options
DENY
timing-allow-origin
*
expires
Fri, 07 Jun 2024 22:32:16 GMT
wp-emoji-release.min.js
engineering.fb.com/wp-includes/js/ 		18 KB
5 KB 		Script
General
Check archive.org
Download Go to
Full URL
https://engineering.fb.com/wp-includes/js/wp-emoji-release.min.js?ver=6.5.4
Requested by
Host: engineering.fb.com
URL: https://engineering.fb.com/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
192.0.66.236 San Francisco, United States, ASN2635 (AUTOMATTIC, US),
Reverse DNS
Software
nginx /
Resource Hash
4e6ce5444c7f396cef0eb1fa3611034151e485dd06fbe5573a5583e1eebc98c3
Security Headers
Name Value
Strict-Transport-Security max-age=31536000;includeSubdomains;preload

Request headers

sec-ch-ua
"Google Chrome";v="125", "Not:A-Brand";v="8", "Chromium";v="125"
Referer
https://engineering.fb.com/
Accept-Language
pl-PL,pl;q=0.9;q=0.9
sec-ch-ua-mobile
?0
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/125.0.0.0 Safari/537.36
sec-ch-ua-platform
"Win32"

Response headers

date
Fri, 07 Jun 2024 22:29:49 GMT
content-encoding
br
strict-transport-security
max-age=31536000;includeSubdomains;preload
last-modified
Wed, 05 Jun 2024 16:31:55 GMT
server
nginx
x-rq
hhn2 111 253 443
etag
W/"666092fb-4926"
vary
Accept-Encoding
x-cache
HIT
content-type
application/javascript
cache-control
max-age=31536000
accept-ranges
bytes
sdk.js
connect.facebook.net/en_US/ 		299 KB
86 KB 		Script
General
Check archive.org
Download Go to
Full URL
https://connect.facebook.net/en_US/sdk.js?hash=761e0e91795c49fcdf13091ee74a1313
Requested by
Host: connect.facebook.net
URL: https://connect.facebook.net/en_US/sdk.js
Protocol
H3
Security
QUIC, , AES_128_GCM
Server
157.240.0.6 Frankfurt am Main, Germany, ASN32934 (FACEBOOK, US),
Reverse DNS
xx-fbcdn-shv-02-fra3.fbcdn.net
Software
/
Resource Hash
ab3a3b493d9a70ad7434bb3b8982eaf9acf4229af19f2192cdc840bb0f45d681
Security Headers
Name Value
Strict-Transport-Security max-age=31536000; preload; includeSubDomains
X-Content-Type-Options nosniff
X-Frame-Options DENY

Request headers

sec-ch-ua
"Google Chrome";v="125", "Not:A-Brand";v="8", "Chromium";v="125"
Referer
https://engineering.fb.com/
Origin
https://engineering.fb.com
Accept-Language
pl-PL,pl;q=0.9;q=0.9
sec-ch-ua-mobile
?0
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/125.0.0.0 Safari/537.36
sec-ch-ua-platform
"Win32"

Response headers

strict-transport-security
max-age=31536000; preload; includeSubDomains
content-encoding
gzip
x-content-type-options
nosniff
date
Fri, 07 Jun 2024 22:29:50 GMT
content-md5
hGWdGY3It5i8sEzLHa5ruA==
document-policy
force-load-at-top
cross-origin-resource-policy
cross-origin
alt-svc
h3=":443"; ma=86400
content-length
87600
reporting-endpoints
coop_report="https://www.facebook.com/browser_reporting/coop/?minimize=0", coep_report="https://www.facebook.com/browser_reporting/coep/?minimize=0", permissions_policy="https://www.facebook.com/ajax/browser_error_reports/"
x-fb-connection-quality
EXCELLENT; q=0.9, rtt=39, rtx=0, c=23, mss=1232, tbw=4313, tp=9, tpl=0, uplat=0, ullat=-1
x-fb-debug
+QAID4N8r406tQ90RXNezlmnykjldQHeMLm0Lh4QJ0tOScsYSFM/w5AtY39f+4JYcNQCeHPgTLMSwi3Zu20XkQ==
cross-origin-embedder-policy-report-only
require-corp;report-to="coep_report"
x-fb-content-md5
68cf000b7d8cde31cd105a9187ecb96e
cross-origin-opener-policy
same-origin-allow-popups;report-to="coop_report"
etag
"1f2e73d474e24c3ea96dc3fede49bb2e"
vary
Accept-Encoding
report-to
{"max_age":2592000,"endpoints":[{"url":"https:\/\/www.facebook.com\/browser_reporting\/coop\/?minimize=0"}],"group":"coop_report","include_subdomains":true}, {"max_age":86400,"endpoints":[{"url":"https:\/\/www.facebook.com\/browser_reporting\/coep\/?minimize=0"}],"group":"coep_report"}, {"max_age":21600,"endpoints":[{"url":"https:\/\/www.facebook.com\/ajax\/browser_error_reports\/"}],"group":"permissions_policy"}
content-type
application/x-javascript; charset=utf-8
access-control-allow-origin
*
origin-agent-cluster
?0
access-control-expose-headers
X-FB-Content-MD5
cache-control
public,max-age=31536000,stale-while-revalidate=3600,immutable
permissions-policy
accelerometer=(), attribution-reporting=(), autoplay=(), battery=(self), bluetooth=(), camera=(), ch-device-memory=(), ch-downlink=(), ch-dpr=(), ch-ect=(), ch-rtt=(), ch-save-data=(), ch-ua-arch=(), ch-ua-bitness=(), ch-viewport-height=(), ch-viewport-width=(), ch-width=(), clipboard-read=(), clipboard-write=(), compute-pressure=(), display-capture=(), encrypted-media=(), fullscreen=(self), gamepad=(), geolocation=(), gyroscope=(), hid=(), idle-detection=(), interest-cohort=(), keyboard-map=(), local-fonts=(), magnetometer=(), microphone=(), midi=(), otp-credentials=(), payment=(), picture-in-picture=(), private-state-token-issuance=(), publickey-credentials-get=(), screen-wake-lock=(), serial=(), shared-storage=(), shared-storage-select-url=(), private-state-token-redemption=(), usb=(), usb-unrestricted=(), unload=(self), window-management=(), xr-spatial-tracking=();report-to="permissions_policy"
x-frame-options
DENY
timing-allow-origin
*
priority
u=3,i
expires
Sat, 07 Jun 2025 19:53:07 GMT
favicon.ico
engineering.fb.com/wp-content/themes/code-fb-com/ 		5 KB
2 KB 		Other
General
Check archive.org
Download Go to
Full URL
https://engineering.fb.com/wp-content/themes/code-fb-com/favicon.ico
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
192.0.66.236 San Francisco, United States, ASN2635 (AUTOMATTIC, US),
Reverse DNS
Software
nginx /
Resource Hash
b96d739c3a8ac4ef0b34212c8a2b7f23dcb7b039e0dd14ef170d8e9232972bf7
Security Headers
Name Value
Strict-Transport-Security max-age=31536000;includeSubdomains;preload

Request headers

sec-ch-ua
"Google Chrome";v="125", "Not:A-Brand";v="8", "Chromium";v="125"
Referer
https://engineering.fb.com/
Accept-Language
pl-PL,pl;q=0.9;q=0.9
sec-ch-ua-mobile
?0
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/125.0.0.0 Safari/537.36
sec-ch-ua-platform
"Win32"

Response headers

date
Fri, 07 Jun 2024 22:29:50 GMT
content-encoding
br
strict-transport-security
max-age=31536000;includeSubdomains;preload
last-modified
Tue, 22 Aug 2023 12:44:53 GMT
server
nginx
x-rq
hhn2 111 253 443
etag
W/"64e4adc5-15b6"
vary
Accept-Encoding
x-cache
HIT
content-type
image/x-icon
cache-control
max-age=31536000
accept-ranges
bytes

Verdicts & Comments Add Verdict or Comment

51 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| _wpemojiSettings object| _domassistevents function| gdprSafeTrack undefined| $ function| jQuery function| Popper object| loadmore_params object| search_params function| LazyLoad function| createLightbox function| createFacebookPlayer function| checkFacebookUrl function| twitterSharePopup function| fbShare function| shareHackerNews function| twitterFollow function| tabHandler function| loadPosts function| newPostsInit object| jQuerynavbarSearchbarToggler object| jQuerynavbarMenuToggler object| jQuerynavbarMobileSearch object| jQuerysearchContainer object| jQuerynavContainer function| hideSearchContainer function| showSearchContainer function| hideNavContainer function| showNavContainer function| truncateTitle function| validateAndSanitize function| jobEvents function| jobEventTracking function| readMoreInTracking function| videoAjaxHandler function| createVideoPlayer function| resetPlaylist function| setPlaylists function| setActivePlaylist function| categoryDropdownInit function| videoInit object| _self object| Prism function| DOMPurify object| bootstrap object| twemoji object| wp object| google_tag_manager object| google_tag_data object| dataLayer object| FB object| __buffer

0 Cookies

2 Console Messages

Source Level URL
Text
security warning
Message:
Error with Permissions-Policy header: Origin trial controlled feature not enabled: 'interest-cohort'.
network error URL: https://facebookmicrosites.github.io/favicon.ico
Message:
Failed to load resource: the server responded with a status of 404 ()

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
Strict-Transport-Security max-age=31557600

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.

code.facebook.com
code.fb.com
connect.facebook.net
engineering.fb.com
facebookmicrosites.github.io
www.googleoptimize.com
142.250.185.78
157.240.0.13
157.240.0.6
185.199.111.153
192.0.66.236
192.0.66.29
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