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engineering.fb.com Open in urlscan Pro
2a04:fa87:fffd::c000:42ec  Public Scan

Go To Rescan Add Verdict Report
Submitted URL: http://facebookmicrosites.github.io/
Effective URL: https://engineering.fb.com/
Submission: On May 06 via manual from BH — Scanned from SG
 Behaviour Indicators
Similar DOM Content API
Verdicts

Summary

This website contacted 6 IPs in 3 countries across 5 domains to perform 42 HTTP transactions. The main IP is 2a04:fa87:fffd::c000:42ec, located in Ireland and belongs to AUTOMATTIC, US. The main domain is engineering.fb.com. The Cisco Umbrella rank of the primary domain is 760612.
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 2606:50c0:800... 54113 (FASTLY)
1 1 157.240.235.15 32934 (FACEBOOK)
1 1 2a04:fa87:fff... 2635 (AUTOMATTIC)
36 2a04:fa87:fff... 2635 (AUTOMATTIC)
1 2404:6800:400... 15169 (GOOGLE)
1 2a03:2880:f00... 32934 (FACEBOOK)
1 157.240.235.1 32934 (FACEBOOK)
42 6
2    2606:50c0:8003::153 (United States)

ASN54113 (FASTLY, US)
facebookmicrosites.github.io
1    157.240.235.15 (Singapore, Singapore)

ASN32934 (FACEBOOK, US)
PTR: edge-star-shv-04-sin6.facebook.com
code.facebook.com
1    2a04:fa87:fffd::c000:421d (Ireland)

ASN2635 (AUTOMATTIC, US)
code.fb.com
36    2a04:fa87:fffd::c000:42ec (Ireland)

ASN2635 (AUTOMATTIC, US)
engineering.fb.com
1    2404:6800:4003:c02::8b (Singapore, Singapore)

ASN15169 (GOOGLE, US)
www.googleoptimize.com
1    2a03:2880:f00c:10d:face:b00c:0:3 (Singapore, Singapore)

ASN32934 (FACEBOOK, US)
connect.facebook.net
1    157.240.235.1 (Singapore, Singapore)

ASN32934 (FACEBOOK, US)
PTR: xx-fbcdn-shv-04-sin6.fbcdn.net
connect.facebook.net
Apex Domain
Subdomains		 Transfer
37 fb.com
code.fb.com
engineering.fb.com — Cisco Umbrella Rank: 760612
1 MB
2 facebook.net
connect.facebook.net — Cisco Umbrella Rank: 183
91 KB
2 github.io
facebookmicrosites.github.io — Cisco Umbrella Rank: 534210
1 KB
1 googleoptimize.com
www.googleoptimize.com — Cisco Umbrella Rank: 2828
63 KB
1 facebook.com
code.facebook.com
104 B
42 5
Domain Requested by
36 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
42 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
GTS CA 1C3		 2024-04-16 -
2024-07-09		 3 months crt.sh
*.facebook.com
DigiCert SHA2 High Assurance Server CA		 2024-02-13 -
2024-05-13		 3 months crt.sh

This page contains 1 frames:

Primary Page: https://engineering.fb.com/
Frame ID: 11DA3FDE2D0738C6E7051303AC902C1A
Requests: 42 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

42
Requests

98 %
HTTPS

71 %
IPv6

5
Domains

6
Subdomains

6
IPs

3
Countries

1499 kB
Transfer

2729 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/

42 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
526 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
2606:50c0:8003::153 , United States, ASN54113 (FASTLY, US),
Reverse DNS
Software
GitHub.com /
Resource Hash
Security Headers
Name Value
Strict-Transport-Security max-age=31557600

Request headers

Accept-Language
zh-SG,zh;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/124.0.0.0 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
Mon, 06 May 2024 09:30:24 GMT
etag
"5a7c83e9-71"
expires
Fri, 19 Apr 2024 16:10:15 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
31ebac54eecc348183e96b76e20e382e5f5b4af9
x-github-request-id
78E2:2315E5:21CCBF:23D135:6622950F
x-proxy-cache
MISS
x-served-by
cache-mel11253-MEL
x-timer
S1714987824.786234,VS0,VE221

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
2a04:fa87:fffd::c000:42ec , Ireland, ASN2635 (AUTOMATTIC, US),
Reverse DNS
Software
nginx / WordPress VIP <https://wpvip.com>
Resource Hash
571ae912138cfe0723ccce4e1e04a21626588a41524e29c2473af10039095f12
Security Headers
Name Value
Strict-Transport-Security max-age=31536000;includeSubdomains;preload

Request headers

Accept-Language
zh-SG,zh;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/124.0.0.0 Safari/537.36
sec-ch-ua
"Google Chrome";v="124", "Not:A-Brand";v="8", "Chromium";v="124"
sec-ch-ua-mobile
?0
sec-ch-ua-platform
"Win32"

Response headers

accept-ranges
bytes
age
891
cache-control
max-age=300, must-revalidate
content-encoding
br
content-length
14668
content-type
text/html; charset=UTF-8
date
Mon, 06 May 2024 09:30:24 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
sin2 123 242 443

Redirect headers

age
12400
cache-control
max-age=300, must-revalidate
content-encoding
gzip
content-length
20
content-type
text/html; charset=utf-8
date
Mon, 06 May 2024 09:30:24 GMT
location
https://engineering.fb.com/
server
nginx
strict-transport-security
max-age=31536000;includeSubdomains;preload
x-cache
grace
x-rq
sin1 123 243 443
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
2606:50c0:8003::153 , United States, ASN54113 (FASTLY, US),
Reverse DNS
Software
GitHub.com /
Resource Hash
Security Headers
Name Value
Strict-Transport-Security max-age=31557600

Request headers

sec-ch-ua
"Google Chrome";v="124", "Not:A-Brand";v="8", "Chromium";v="124"
Referer
https://facebookmicrosites.github.io/
Accept-Language
zh-SG,zh;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/124.0.0.0 Safari/537.36
sec-ch-ua-platform
"Win32"

Response headers

x-fastly-request-id
b1e6b94f78a3b641f4e559c3fbdbe29b79be3872
strict-transport-security
max-age=31557600
content-encoding
gzip
via
1.1 varnish
date
Mon, 06 May 2024 09:30:24 GMT
age
1754
x-cache
HIT
x-cache-hits
0
content-length
559
x-served-by
cache-mel11253-MEL
server
GitHub.com
x-github-request-id
9A2A:17D753:860F2D:8EBE98:66389C55
x-timer
S1714987824.208560,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/ 		172 KB
63 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
2404:6800:4003:c02::8b Singapore, Singapore, ASN15169 (GOOGLE, US),
Reverse DNS
Software
Google Tag Manager /
Resource Hash
c656c7f41cb069ff71b7a41599c7c77ffa260c428920e6d993ba2b0a8ad921c3
Security Headers
Name Value
Strict-Transport-Security max-age=31536000; includeSubDomains
X-Xss-Protection 0

Request headers

sec-ch-ua
"Google Chrome";v="124", "Not:A-Brand";v="8", "Chromium";v="124"
Referer
https://engineering.fb.com/
Accept-Language
zh-SG,zh;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/124.0.0.0 Safari/537.36
sec-ch-ua-platform
"Win32"

Response headers

date
Mon, 06 May 2024 09:30:24 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
63912
x-xss-protection
0
last-modified
Mon, 06 May 2024 09:00:00 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
Mon, 06 May 2024 09:30:24 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=1712700738g
Requested by
Host: engineering.fb.com
URL: https://engineering.fb.com/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2a04:fa87:fffd::c000:42ec , Ireland, 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="124", "Not:A-Brand";v="8", "Chromium";v="124"
Referer
https://engineering.fb.com/
Accept-Language
zh-SG,zh;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/124.0.0.0 Safari/537.36
sec-ch-ua-platform
"Win32"

Response headers

date
Mon, 06 May 2024 09:30:24 GMT
content-encoding
br
strict-transport-security
max-age=31536000;includeSubdomains;preload
last-modified
Tue, 09 Apr 2024 22:12:18 GMT
server
nginx
x-rq
sin2 123 242 443
etag
W/"6615bd42-1bae5"
vary
Accept-Encoding
x-cache
HIT
content-type
text/css
cache-control
max-age=31536000
/
engineering.fb.com/_static/ 		15 KB
4 KB 		Stylesheet
General
Check archive.org
Download Go to
Full URL
https://engineering.fb.com/_static/??-eJzTLy/QzcxLzilNSS3WzyrWz01NyUxMzUnNTc0rQeEU5CRWphbp5qSmJyZX6uVm5uklFxfr6OPTDpRD5sM02efaGpobGpkbGJgbWwIARJYu4A==
Requested by
Host: engineering.fb.com
URL: https://engineering.fb.com/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2a04:fa87:fffd::c000:42ec , Ireland, 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="124", "Not:A-Brand";v="8", "Chromium";v="124"
Referer
https://engineering.fb.com/
Accept-Language
zh-SG,zh;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/124.0.0.0 Safari/537.36
sec-ch-ua-platform
"Win32"

Response headers

date
Mon, 06 May 2024 09:30:24 GMT
content-encoding
br
strict-transport-security
max-age=31536000;includeSubdomains;preload
last-modified
Tue, 09 Apr 2024 22:12:19 GMT
server
nginx
x-rq
sin2 123 242 443
vary
Accept-Encoding
x-cache
HIT
content-type
text/css;charset=utf-8
cache-control
max-age=31536000
related-posts-block-styles.min.css
engineering.fb.com/wp-content/mu-plugins/search/elasticpress-next/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-next/dist/css/related-posts-block-styles.min.css?m=1713212360g
Requested by
Host: engineering.fb.com
URL: https://engineering.fb.com/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2a04:fa87:fffd::c000:42ec , Ireland, 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="124", "Not:A-Brand";v="8", "Chromium";v="124"
Referer
https://engineering.fb.com/
Accept-Language
zh-SG,zh;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/124.0.0.0 Safari/537.36
sec-ch-ua-platform
"Win32"

Response headers

date
Mon, 06 May 2024 09:30:24 GMT
strict-transport-security
max-age=31536000;includeSubdomains;preload
x-rq
sin2 123 243 443
last-modified
Mon, 15 Apr 2024 20:19:20 GMT
server
nginx
etag
"661d8bc8-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/??-eJxlzdEOgjAMheEXsmsmqPHC+CzaFZjSsdgSX98NMSHx9sv5c/CdgaZknAzzOPcxKRbqQ35V1+ohqmGVFRyp7nAT2sDCijQFhu5eWL5N2SENcQywLJzE9NfKDL/fB1u+0RN845qlXaE2V7n4k2/b82F/9B8khEFW
Requested by
Host: engineering.fb.com
URL: https://engineering.fb.com/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2a04:fa87:fffd::c000:42ec , Ireland, ASN2635 (AUTOMATTIC, US),
Reverse DNS
Software
nginx /
Resource Hash
2146904adf0775d23266635fa256fdd3f6a9e6aaeae06b6d26d4fa0c4ff0b216
Security Headers
Name Value
Strict-Transport-Security max-age=31536000;includeSubdomains;preload

Request headers

sec-ch-ua
"Google Chrome";v="124", "Not:A-Brand";v="8", "Chromium";v="124"
Referer
https://engineering.fb.com/
Accept-Language
zh-SG,zh;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/124.0.0.0 Safari/537.36
sec-ch-ua-platform
"Win32"

Response headers

date
Mon, 06 May 2024 09:30:24 GMT
content-encoding
br
strict-transport-security
max-age=31536000;includeSubdomains;preload
last-modified
Tue, 30 Apr 2024 16:41:01 GMT
server
nginx
x-rq
sin2 123 243 443
vary
Accept-Encoding
x-cache
HIT
content-type
text/css;charset=utf-8
cache-control
max-age=31536000
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
2a04:fa87:fffd::c000:42ec , Ireland, 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="124", "Not:A-Brand";v="8", "Chromium";v="124"
Referer
https://engineering.fb.com/
Accept-Language
zh-SG,zh;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/124.0.0.0 Safari/537.36
sec-ch-ua-platform
"Win32"

Response headers

date
Mon, 06 May 2024 09:30:24 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
sin2 123 242 443
etag
W/"64e4adc5-1b00"
vary
Accept-Encoding
x-cache
HIT
content-type
application/javascript
cache-control
max-age=31536000
/
engineering.fb.com/_static/ 		118 KB
41 KB 		Script
General
Check archive.org
Download Go to
Full URL
https://engineering.fb.com/_static/??-eJzTLy/QzcxLzilNSS3WzwKiwtLUokoopZebmaeXVayjj0+Rbm5melFiSSqy4uT8vJLUvBL9kozUXKCW0ryU1KLikqLEApDugvyCgtQiqHL7XFtDc0MjcwMDc2PLLAD3zzQB
Requested by
Host: engineering.fb.com
URL: https://engineering.fb.com/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2a04:fa87:fffd::c000:42ec , Ireland, 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="124", "Not:A-Brand";v="8", "Chromium";v="124"
Referer
https://engineering.fb.com/
Accept-Language
zh-SG,zh;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/124.0.0.0 Safari/537.36
sec-ch-ua-platform
"Win32"

Response headers

date
Mon, 06 May 2024 09:30:24 GMT
content-encoding
br
strict-transport-security
max-age=31536000;includeSubdomains;preload
last-modified
Tue, 09 Apr 2024 22:12:19 GMT
server
nginx
x-rq
sin2 123 242 443
vary
Accept-Encoding
x-cache
HIT
content-type
application/javascript
cache-control
max-age=31536000
FacebookReader-Medium.woff2
engineering.fb.com/wp-content/themes/code-fb-com/fonts/ 		35 KB
35 KB 		Font
General
Check archive.org
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Full URL
https://engineering.fb.com/wp-content/themes/code-fb-com/fonts/FacebookReader-Medium.woff2
Requested by
Host: engineering.fb.com
URL: https://engineering.fb.com/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2a04:fa87:fffd::c000:42ec , Ireland, ASN2635 (AUTOMATTIC, US),
Reverse DNS
Software
nginx /
Resource Hash
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Security Headers
Name Value
Strict-Transport-Security max-age=31536000;includeSubdomains;preload

Request headers

sec-ch-ua
"Google Chrome";v="124", "Not:A-Brand";v="8", "Chromium";v="124"
Referer
https://engineering.fb.com/
Origin
https://engineering.fb.com
Accept-Language
zh-SG,zh;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/124.0.0.0 Safari/537.36
sec-ch-ua-platform
"Win32"

Response headers

date
Mon, 06 May 2024 09:30:24 GMT
strict-transport-security
max-age=31536000;includeSubdomains;preload
x-rq
sin2 123 242 443
last-modified
Tue, 22 Aug 2023 12:44:53 GMT
server
nginx
etag
"64e4adc5-8aa0"
x-cache
HIT
content-type
application/font-woff2
access-control-allow-origin
*
access-control-allow-methods
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cache-control
max-age=31536000
accept-ranges
bytes
content-length
35488
FacebookReader-Regular.woff2
engineering.fb.com/wp-content/themes/code-fb-com/fonts/ 		34 KB
35 KB 		Font
General
Check archive.org
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Full URL
https://engineering.fb.com/wp-content/themes/code-fb-com/fonts/FacebookReader-Regular.woff2
Requested by
Host: engineering.fb.com
URL: https://engineering.fb.com/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2a04:fa87:fffd::c000:42ec , Ireland, ASN2635 (AUTOMATTIC, US),
Reverse DNS
Software
nginx /
Resource Hash
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Security Headers
Name Value
Strict-Transport-Security max-age=31536000;includeSubdomains;preload

Request headers

sec-ch-ua
"Google Chrome";v="124", "Not:A-Brand";v="8", "Chromium";v="124"
Referer
https://engineering.fb.com/
Origin
https://engineering.fb.com
Accept-Language
zh-SG,zh;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/124.0.0.0 Safari/537.36
sec-ch-ua-platform
"Win32"

Response headers

date
Mon, 06 May 2024 09:30:24 GMT
strict-transport-security
max-age=31536000;includeSubdomains;preload
x-rq
sin2 123 242 443
last-modified
Tue, 22 Aug 2023 12:44:53 GMT
server
nginx
etag
"64e4adc5-89a4"
x-cache
HIT
content-type
application/font-woff2
access-control-allow-origin
*
access-control-allow-methods
GET, HEAD
cache-control
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accept-ranges
bytes
content-length
35236
Optimistic_Display_W_Md.woff2
engineering.fb.com/wp-content/themes/code-fb-com/fonts/ 		12 KB
12 KB 		Font
General
Check archive.org
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Full URL
https://engineering.fb.com/wp-content/themes/code-fb-com/fonts/Optimistic_Display_W_Md.woff2
Requested by
Host: engineering.fb.com
URL: https://engineering.fb.com/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2a04:fa87:fffd::c000:42ec , Ireland, ASN2635 (AUTOMATTIC, US),
Reverse DNS
Software
nginx /
Resource Hash
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Security Headers
Name Value
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Request headers

sec-ch-ua
"Google Chrome";v="124", "Not:A-Brand";v="8", "Chromium";v="124"
Referer
https://engineering.fb.com/
Origin
https://engineering.fb.com
Accept-Language
zh-SG,zh;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/124.0.0.0 Safari/537.36
sec-ch-ua-platform
"Win32"

Response headers

date
Mon, 06 May 2024 09:30:24 GMT
strict-transport-security
max-age=31536000;includeSubdomains;preload
x-rq
sin2 123 242 443
last-modified
Tue, 22 Aug 2023 12:44:53 GMT
server
nginx
etag
"64e4adc5-3048"
x-cache
HIT
content-type
application/font-woff2
access-control-allow-origin
*
access-control-allow-methods
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cache-control
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accept-ranges
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435213050_700020278765420_3779565176929850987_n.png
engineering.fb.com/wp-content/uploads/2024/04/ 		171 KB
171 KB 		Image
General
Check archive.org
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Full URL
https://engineering.fb.com/wp-content/uploads/2024/04/435213050_700020278765420_3779565176929850987_n.png
Requested by
Host: engineering.fb.com
URL: https://engineering.fb.com/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2a04:fa87:fffd::c000:42ec , Ireland, ASN2635 (AUTOMATTIC, US),
Reverse DNS
Software
nginx /
Resource Hash
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Security Headers
Name Value
Strict-Transport-Security max-age=31536000;includeSubdomains;preload

Request headers

sec-ch-ua
"Google Chrome";v="124", "Not:A-Brand";v="8", "Chromium";v="124"
Referer
https://engineering.fb.com/
Accept-Language
zh-SG,zh;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/124.0.0.0 Safari/537.36
sec-ch-ua-platform
"Win32"

Response headers

date
Mon, 06 May 2024 09:30:24 GMT
strict-transport-security
max-age=31536000;includeSubdomains;preload
x-rq
sin2 115 120 443
last-modified
Thu, 11 Apr 2024 18:32:01 GMT
server
nginx
etag
"e32947d1ff3a86fb"
vary
Accept
x-cache
HIT
content-type
image/webp
cache-control
max-age=31536000
accept-ranges
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content-length
174984
MTIA-Chip_Social-Share.jpg
engineering.fb.com/wp-content/uploads/2024/04/ 		145 KB
145 KB 		Image
General
Check archive.org
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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
Requested by
Host: engineering.fb.com
URL: https://engineering.fb.com/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2a04:fa87:fffd::c000:42ec , Ireland, ASN2635 (AUTOMATTIC, US),
Reverse DNS
Software
nginx /
Resource Hash
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Security Headers
Name Value
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Request headers

sec-ch-ua
"Google Chrome";v="124", "Not:A-Brand";v="8", "Chromium";v="124"
Referer
https://engineering.fb.com/
Accept-Language
zh-SG,zh;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/124.0.0.0 Safari/537.36
sec-ch-ua-platform
"Win32"

Response headers

date
Mon, 06 May 2024 09:30:24 GMT
strict-transport-security
max-age=31536000;includeSubdomains;preload
x-rq
sin2 113 214 443
last-modified
Wed, 10 Apr 2024 15:50:14 GMT
server
nginx
etag
"8ae080d09edab7db"
vary
Accept
x-cache
HIT
content-type
image/webp
cache-control
max-age=31536000
accept-ranges
bytes
content-length
148220
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engineering.fb.com/wp-content/uploads/2024/03/ 		110 KB
110 KB 		Image
General
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Full URL
https://engineering.fb.com/wp-content/uploads/2024/03/Meta-24K-GenAi-Clusters-hero.png?w=580&h=326&crop=1
Requested by
Host: engineering.fb.com
URL: https://engineering.fb.com/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2a04:fa87:fffd::c000:42ec , Ireland, ASN2635 (AUTOMATTIC, US),
Reverse DNS
Software
nginx /
Resource Hash
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Security Headers
Name Value
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Request headers

sec-ch-ua
"Google Chrome";v="124", "Not:A-Brand";v="8", "Chromium";v="124"
Referer
https://engineering.fb.com/
Accept-Language
zh-SG,zh;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/124.0.0.0 Safari/537.36
sec-ch-ua-platform
"Win32"

Response headers

date
Mon, 06 May 2024 09:30:24 GMT
strict-transport-security
max-age=31536000;includeSubdomains;preload
x-rq
sin2 113 87 443
last-modified
Tue, 12 Mar 2024 15:13:14 GMT
server
nginx
etag
"28169b8016ca4d48"
vary
Accept
x-cache
HIT
content-type
image/webp
cache-control
max-age=31536000
accept-ranges
bytes
content-length
112728
meta_logo_full.svg
engineering.fb.com/wp-content/themes/code-fb-com/img/ 		14 KB
9 KB 		Image
General
Check archive.org
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Full URL
https://engineering.fb.com/wp-content/themes/code-fb-com/img/meta_logo_full.svg
Requested by
Host: engineering.fb.com
URL: https://engineering.fb.com/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2a04:fa87:fffd::c000:42ec , Ireland, ASN2635 (AUTOMATTIC, US),
Reverse DNS
Software
nginx /
Resource Hash
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Security Headers
Name Value
Strict-Transport-Security max-age=31536000;includeSubdomains;preload

Request headers

sec-ch-ua
"Google Chrome";v="124", "Not:A-Brand";v="8", "Chromium";v="124"
Referer
https://engineering.fb.com/
Accept-Language
zh-SG,zh;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/124.0.0.0 Safari/537.36
sec-ch-ua-platform
"Win32"

Response headers

date
Mon, 06 May 2024 09:30:24 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
sin2 123 242 443
etag
W/"64e4adc5-36a6"
vary
Accept-Encoding
x-cache
HIT
content-type
image/svg+xml
cache-control
max-age=31536000
/
engineering.fb.com/_static/ 		214 KB
68 KB 		Script
General
Check archive.org
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
Requested by
Host: engineering.fb.com
URL: https://engineering.fb.com/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2a04:fa87:fffd::c000:42ec , Ireland, ASN2635 (AUTOMATTIC, US),
Reverse DNS
Software
nginx /
Resource Hash
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Security Headers
Name Value
Strict-Transport-Security max-age=31536000;includeSubdomains;preload

Request headers

sec-ch-ua
"Google Chrome";v="124", "Not:A-Brand";v="8", "Chromium";v="124"
Referer
https://engineering.fb.com/
Accept-Language
zh-SG,zh;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/124.0.0.0 Safari/537.36
sec-ch-ua-platform
"Win32"

Response headers

date
Mon, 06 May 2024 09:30:24 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
sin2 123 243 443
vary
Accept-Encoding
x-cache
HIT
content-type
application/javascript
cache-control
max-age=31536000
79af6484-86b7-4c4e-bd56-cd31934adcd9
https://engineering.fb.com/ 		1 KB
0 		Other
General
Check archive.org
Download Go to
Full URL
blob:https://engineering.fb.com/79af6484-86b7-4c4e-bd56-cd31934adcd9
Requested by
Host: engineering.fb.com
URL: https://engineering.fb.com/
Protocol
BLOB
Server
-, , ASN (),
Reverse DNS
Software
/
Resource Hash
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Request headers

Accept-Language
zh-SG,zh;q=0.9;q=0.9
Referer
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0.0.0 Safari/537.36

Response headers

Content-Length
1185
Content-Type
text/javascript
sdk.js
connect.facebook.net/en_US/ 		3 KB
4 KB 		Script
General
Check archive.org
Download Go to
Full URL
https://connect.facebook.net/en_US/sdk.js
Requested by
Host: engineering.fb.com
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
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2a03:2880:f00c:10d:face:b00c:0:3 Singapore, Singapore, ASN32934 (FACEBOOK, US),
Reverse DNS
Software
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Resource Hash
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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="124", "Not:A-Brand";v="8", "Chromium";v="124"
Referer
https://engineering.fb.com/
Accept-Language
zh-SG,zh;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/124.0.0.0 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
Mon, 06 May 2024 09:30:24 GMT
content-md5
wzla29q67tcW1slRWf5r4g==
document-policy
force-load-at-top
cross-origin-resource-policy
cross-origin
alt-svc
h3=":443"; ma=86400
content-length
1687
reporting-endpoints
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x-fb-connection-quality
EXCELLENT; q=0.9, rtt=6, rtx=0, c=12, mss=1294, tbw=2781, tp=-1, tpl=-1, uplat=0, ullat=-1
x-fb-debug
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cross-origin-embedder-policy-report-only
require-corp;report-to="coep_report"
x-fb-content-md5
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cross-origin-opener-policy
same-origin-allow-popups;report-to="coop_report"
etag
"e75a9a2b0e8fcfeb594f52a72f02e6fc"
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
*
access-control-expose-headers
X-FB-Content-MD5
cache-control
public,max-age=1200,stale-while-revalidate=3600
permissions-policy
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x-frame-options
DENY
timing-allow-origin
*
expires
Mon, 06 May 2024 09:32:37 GMT
icon-search.svg
engineering.fb.com/wp-content/themes/code-fb-com/img/ 		406 B
645 B 		Image
General
Check archive.org
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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
Security
TLS 1.3, , AES_128_GCM
Server
2a04:fa87:fffd::c000:42ec , Ireland, ASN2635 (AUTOMATTIC, US),
Reverse DNS
Software
nginx /
Resource Hash
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Security Headers
Name Value
Strict-Transport-Security max-age=31536000;includeSubdomains;preload

Request headers

sec-ch-ua
"Google Chrome";v="124", "Not:A-Brand";v="8", "Chromium";v="124"
Referer
https://engineering.fb.com/
Accept-Language
zh-SG,zh;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/124.0.0.0 Safari/537.36
sec-ch-ua-platform
"Win32"

Response headers

date
Mon, 06 May 2024 09:30:24 GMT
strict-transport-security
max-age=31536000;includeSubdomains;preload
x-rq
sin2 123 243 443
last-modified
Tue, 22 Aug 2023 12:44:53 GMT
server
nginx
etag
"64e4adc5-196"
x-cache
HIT
content-type
image/svg+xml
cache-control
max-age=31536000
accept-ranges
bytes
content-length
406
logo-meta.svg
engineering.fb.com/wp-content/themes/code-fb-com/img/ 		8 KB
3 KB 		Image
General
Check archive.org
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Full URL
https://engineering.fb.com/wp-content/themes/code-fb-com/img/logo-meta.svg
Requested by
Host: engineering.fb.com
URL: https://engineering.fb.com/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2a04:fa87:fffd::c000:42ec , Ireland, ASN2635 (AUTOMATTIC, US),
Reverse DNS
Software
nginx /
Resource Hash
bf7464b77326a2e577433ce4ca8d0d52c257c17393848b758c4a76cccda18ec3
Security Headers
Name Value
Strict-Transport-Security max-age=31536000;includeSubdomains;preload

Request headers

sec-ch-ua
"Google Chrome";v="124", "Not:A-Brand";v="8", "Chromium";v="124"
Referer
https://engineering.fb.com/
Accept-Language
zh-SG,zh;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/124.0.0.0 Safari/537.36
sec-ch-ua-platform
"Win32"

Response headers

date
Mon, 06 May 2024 09:30:24 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
sin2 123 242 443
etag
W/"64e4adc5-21b3"
vary
Accept-Encoding
x-cache
HIT
content-type
image/svg+xml
cache-control
max-age=31536000
429817884_378736968282688_5229858100996829794_n.png
engineering.fb.com/wp-content/uploads/2024/04/ 		188 KB
189 KB 		Image
General
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Full URL
https://engineering.fb.com/wp-content/uploads/2024/04/429817884_378736968282688_5229858100996829794_n.png?w=545&h=326&crop=1
Requested by
Host: engineering.fb.com
URL: https://engineering.fb.com/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2a04:fa87:fffd::c000:42ec , Ireland, ASN2635 (AUTOMATTIC, US),
Reverse DNS
Software
nginx /
Resource Hash
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Security Headers
Name Value
Strict-Transport-Security max-age=31536000;includeSubdomains;preload

Request headers

sec-ch-ua
"Google Chrome";v="124", "Not:A-Brand";v="8", "Chromium";v="124"
Referer
https://engineering.fb.com/
Accept-Language
zh-SG,zh;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/124.0.0.0 Safari/537.36
sec-ch-ua-platform
"Win32"

Response headers

date
Mon, 06 May 2024 09:30:24 GMT
strict-transport-security
max-age=31536000;includeSubdomains;preload
x-rq
sin2 115 147 443
last-modified
Thu, 11 Apr 2024 16:43:56 GMT
server
nginx
etag
"7625b86cfc22f7f1"
vary
Accept
x-cache
HIT
content-type
image/webp
cache-control
max-age=31536000
accept-ranges
bytes
content-length
192906
Meta-Tech-Podcast-61.webp
engineering.fb.com/wp-content/uploads/2024/03/ 		13 KB
13 KB 		Image
General
Check archive.org
Download Go to Show image
Full URL
https://engineering.fb.com/wp-content/uploads/2024/03/Meta-Tech-Podcast-61.webp?w=580&h=326&crop=1
Requested by
Host: engineering.fb.com
URL: https://engineering.fb.com/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2a04:fa87:fffd::c000:42ec , Ireland, ASN2635 (AUTOMATTIC, US),
Reverse DNS
Software
nginx /
Resource Hash
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Security Headers
Name Value
Strict-Transport-Security max-age=31536000;includeSubdomains;preload

Request headers

sec-ch-ua
"Google Chrome";v="124", "Not:A-Brand";v="8", "Chromium";v="124"
Referer
https://engineering.fb.com/
Accept-Language
zh-SG,zh;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/124.0.0.0 Safari/537.36
sec-ch-ua-platform
"Win32"

Response headers

date
Mon, 06 May 2024 09:30:24 GMT
strict-transport-security
max-age=31536000;includeSubdomains;preload
x-rq
sin2 115 147 443
last-modified
Tue, 26 Mar 2024 17:12:16 GMT
server
nginx
etag
"ed82b57b4e44c2f8"
vary
Accept
x-cache
HIT
content-type
image/webp
cache-control
max-age=31536000
accept-ranges
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13112
Threads-fediverse-hero-white.png
engineering.fb.com/wp-content/uploads/2024/03/ 		35 KB
36 KB 		Image
General
Check archive.org
Download Go to Show image
Full URL
https://engineering.fb.com/wp-content/uploads/2024/03/Threads-fediverse-hero-white.png?w=580&h=326&crop=1
Requested by
Host: engineering.fb.com
URL: https://engineering.fb.com/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2a04:fa87:fffd::c000:42ec , Ireland, ASN2635 (AUTOMATTIC, US),
Reverse DNS
Software
nginx /
Resource Hash
bd5a7ef3ccd64a64a52b1920a79d286ae4ff6580f210db0b99b447e655eecfb5
Security Headers
Name Value
Strict-Transport-Security max-age=31536000;includeSubdomains;preload

Request headers

sec-ch-ua
"Google Chrome";v="124", "Not:A-Brand";v="8", "Chromium";v="124"
Referer
https://engineering.fb.com/
Accept-Language
zh-SG,zh;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/124.0.0.0 Safari/537.36
sec-ch-ua-platform
"Win32"

Response headers

date
Mon, 06 May 2024 09:30:24 GMT
strict-transport-security
max-age=31536000;includeSubdomains;preload
x-rq
sin2 115 147 443
last-modified
Thu, 21 Mar 2024 21:01:14 GMT
server
nginx
etag
"da84761192d250c1"
vary
Accept
x-cache
HIT
content-type
image/webp
cache-control
max-age=31536000
accept-ranges
bytes
content-length
36088
Optimizing-BWE-with-ML-Hero.png
engineering.fb.com/wp-content/uploads/2024/03/ 		29 KB
29 KB 		Image
General
Check archive.org
Download Go to Show image
Full URL
https://engineering.fb.com/wp-content/uploads/2024/03/Optimizing-BWE-with-ML-Hero.png?w=580&h=326&crop=1
Requested by
Host: engineering.fb.com
URL: https://engineering.fb.com/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2a04:fa87:fffd::c000:42ec , Ireland, ASN2635 (AUTOMATTIC, US),
Reverse DNS
Software
nginx /
Resource Hash
50c16f1e41c1cce00cab2eaf83a90e6a8f3c19e5d741c46091c1e9feec9396f6
Security Headers
Name Value
Strict-Transport-Security max-age=31536000;includeSubdomains;preload

Request headers

sec-ch-ua
"Google Chrome";v="124", "Not:A-Brand";v="8", "Chromium";v="124"
Referer
https://engineering.fb.com/
Accept-Language
zh-SG,zh;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/124.0.0.0 Safari/537.36
sec-ch-ua-platform
"Win32"

Response headers

date
Mon, 06 May 2024 09:30:24 GMT
strict-transport-security
max-age=31536000;includeSubdomains;preload
x-rq
sin2 115 120 443
last-modified
Thu, 21 Mar 2024 00:29:41 GMT
server
nginx
etag
"d048461dac89082e"
vary
Accept
x-cache
HIT
content-type
image/webp
cache-control
max-age=31536000
accept-ranges
bytes
content-length
29236
RTC-Video-hero-B.png
engineering.fb.com/wp-content/uploads/2024/03/ 		14 KB
14 KB 		Image
General
Check archive.org
Download Go to Show image
Full URL
https://engineering.fb.com/wp-content/uploads/2024/03/RTC-Video-hero-B.png?w=580&h=326&crop=1
Requested by
Host: engineering.fb.com
URL: https://engineering.fb.com/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2a04:fa87:fffd::c000:42ec , Ireland, ASN2635 (AUTOMATTIC, US),
Reverse DNS
Software
nginx /
Resource Hash
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Security Headers
Name Value
Strict-Transport-Security max-age=31536000;includeSubdomains;preload

Request headers

sec-ch-ua
"Google Chrome";v="124", "Not:A-Brand";v="8", "Chromium";v="124"
Referer
https://engineering.fb.com/
Accept-Language
zh-SG,zh;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/124.0.0.0 Safari/537.36
sec-ch-ua-platform
"Win32"

Response headers

date
Mon, 06 May 2024 09:30:24 GMT
strict-transport-security
max-age=31536000;includeSubdomains;preload
x-rq
sin2 115 147 443
last-modified
Wed, 20 Mar 2024 22:15:02 GMT
server
nginx
etag
"b47ce162fdb66a7d"
vary
Accept
x-cache
HIT
content-type
image/webp
cache-control
max-age=31536000
accept-ranges
bytes
content-length
14026
Logarithm-hero.png
engineering.fb.com/wp-content/uploads/2024/03/ 		115 KB
116 KB 		Image
General
Check archive.org
Download Go to Show image
Full URL
https://engineering.fb.com/wp-content/uploads/2024/03/Logarithm-hero.png?w=580&h=326&crop=1
Requested by
Host: engineering.fb.com
URL: https://engineering.fb.com/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2a04:fa87:fffd::c000:42ec , Ireland, ASN2635 (AUTOMATTIC, US),
Reverse DNS
Software
nginx /
Resource Hash
e59e35cac76b7958de94bd59c5a5bccf7949e19dcd2b43ba68016bc87990775e
Security Headers
Name Value
Strict-Transport-Security max-age=31536000;includeSubdomains;preload

Request headers

sec-ch-ua
"Google Chrome";v="124", "Not:A-Brand";v="8", "Chromium";v="124"
Referer
https://engineering.fb.com/
Accept-Language
zh-SG,zh;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/124.0.0.0 Safari/537.36
sec-ch-ua-platform
"Win32"

Response headers

date
Mon, 06 May 2024 09:30:24 GMT
strict-transport-security
max-age=31536000;includeSubdomains;preload
x-rq
sin2 116 203 443
last-modified
Mon, 18 Mar 2024 16:10:38 GMT
server
nginx
etag
"6b2b43ecbafd0817"
vary
Accept
x-cache
HIT
content-type
image/webp
cache-control
max-age=31536000
accept-ranges
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content-length
118052
Woman-with-smartphone_EU-flag_smaller.jpg
engineering.fb.com/wp-content/uploads/2024/03/ 		20 KB
20 KB 		Image
General
Check archive.org
Download Go to Show image
Full URL
https://engineering.fb.com/wp-content/uploads/2024/03/Woman-with-smartphone_EU-flag_smaller.jpg?w=580&h=326&crop=1
Requested by
Host: engineering.fb.com
URL: https://engineering.fb.com/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2a04:fa87:fffd::c000:42ec , Ireland, ASN2635 (AUTOMATTIC, US),
Reverse DNS
Software
nginx /
Resource Hash
3529fa6817b54b9ea362e5ee20032453fda1295cf6caa4a01ad220f6d5d29e45
Security Headers
Name Value
Strict-Transport-Security max-age=31536000;includeSubdomains;preload

Request headers

sec-ch-ua
"Google Chrome";v="124", "Not:A-Brand";v="8", "Chromium";v="124"
Referer
https://engineering.fb.com/
Accept-Language
zh-SG,zh;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/124.0.0.0 Safari/537.36
sec-ch-ua-platform
"Win32"

Response headers

date
Mon, 06 May 2024 09:30:24 GMT
strict-transport-security
max-age=31536000;includeSubdomains;preload
x-rq
sin2 113 214 443
last-modified
Wed, 06 Mar 2024 10:24:05 GMT
server
nginx
etag
"8baa5faedab0962f"
vary
Accept
x-cache
HIT
content-type
image/webp
cache-control
max-age=31536000
accept-ranges
bytes
content-length
20410
Meta-Tech-Podcast-DotSlash-Hero.png
engineering.fb.com/wp-content/uploads/2024/02/ 		59 KB
59 KB 		Image
General
Check archive.org
Download Go to Show image
Full URL
https://engineering.fb.com/wp-content/uploads/2024/02/Meta-Tech-Podcast-DotSlash-Hero.png?w=580&h=326&crop=1
Requested by
Host: engineering.fb.com
URL: https://engineering.fb.com/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2a04:fa87:fffd::c000:42ec , Ireland, ASN2635 (AUTOMATTIC, US),
Reverse DNS
Software
nginx /
Resource Hash
446e504635bc0903378f81073d7fa1e848d5a762361809a7e2d1c166c24324b4
Security Headers
Name Value
Strict-Transport-Security max-age=31536000;includeSubdomains;preload

Request headers

sec-ch-ua
"Google Chrome";v="124", "Not:A-Brand";v="8", "Chromium";v="124"
Referer
https://engineering.fb.com/
Accept-Language
zh-SG,zh;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/124.0.0.0 Safari/537.36
sec-ch-ua-platform
"Win32"

Response headers

date
Mon, 06 May 2024 09:30:24 GMT
strict-transport-security
max-age=31536000;includeSubdomains;preload
x-rq
sin2 112 213 443
last-modified
Mon, 26 Feb 2024 19:51:43 GMT
server
nginx
etag
"76952195c3173882"
vary
Accept
x-cache
HIT
content-type
image/webp
cache-control
max-age=31536000
accept-ranges
bytes
content-length
60594
Velox-Arrow-Hero.png
engineering.fb.com/wp-content/uploads/2024/02/ 		11 KB
11 KB 		Image
General
Check archive.org
Download Go to Show image
Full URL
https://engineering.fb.com/wp-content/uploads/2024/02/Velox-Arrow-Hero.png?w=580&h=326&crop=1
Requested by
Host: engineering.fb.com
URL: https://engineering.fb.com/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2a04:fa87:fffd::c000:42ec , Ireland, ASN2635 (AUTOMATTIC, US),
Reverse DNS
Software
nginx /
Resource Hash
cfc7d80e3cb8161d8652e5e3973b2502e4f111ba208c737f95276f4f087eb45b
Security Headers
Name Value
Strict-Transport-Security max-age=31536000;includeSubdomains;preload

Request headers

sec-ch-ua
"Google Chrome";v="124", "Not:A-Brand";v="8", "Chromium";v="124"
Referer
https://engineering.fb.com/
Accept-Language
zh-SG,zh;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/124.0.0.0 Safari/537.36
sec-ch-ua-platform
"Win32"

Response headers

date
Mon, 06 May 2024 09:30:24 GMT
strict-transport-security
max-age=31536000;includeSubdomains;preload
x-rq
sin2 112 53 443
last-modified
Tue, 20 Feb 2024 17:03:48 GMT
server
nginx
etag
"3f7ab11c162ac4af"
vary
Accept
x-cache
HIT
content-type
image/webp
cache-control
max-age=31536000
accept-ranges
bytes
content-length
11398
datahallway_thumb.jpg
engineering.fb.com/wp-content/themes/code-fb-com/img/ 		81 KB
81 KB 		Image
General
Check archive.org
Download Go to Show image
Full URL
https://engineering.fb.com/wp-content/themes/code-fb-com/img/datahallway_thumb.jpg
Requested by
Host: engineering.fb.com
URL: https://engineering.fb.com/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2a04:fa87:fffd::c000:42ec , Ireland, ASN2635 (AUTOMATTIC, US),
Reverse DNS
Software
nginx /
Resource Hash
365cce13b2f627432ef5eec720e4a9b8dc047ece4ea6581d238ecd7689feecfc
Security Headers
Name Value
Strict-Transport-Security max-age=31536000;includeSubdomains;preload

Request headers

sec-ch-ua
"Google Chrome";v="124", "Not:A-Brand";v="8", "Chromium";v="124"
Referer
https://engineering.fb.com/
Accept-Language
zh-SG,zh;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/124.0.0.0 Safari/537.36
sec-ch-ua-platform
"Win32"

Response headers

date
Mon, 06 May 2024 09:30:24 GMT
strict-transport-security
max-age=31536000;includeSubdomains;preload
x-rq
sin2 123 243 443
last-modified
Tue, 22 Aug 2023 12:44:53 GMT
server
nginx
etag
"64e4adc5-14319"
x-cache
HIT
content-type
image/jpeg
cache-control
max-age=31536000
accept-ranges
bytes
content-length
82713
fbopensource.png
engineering.fb.com/wp-content/themes/code-fb-com/img/ 		5 KB
5 KB 		Image
General
Check archive.org
Download Go to Show image
Full URL
https://engineering.fb.com/wp-content/themes/code-fb-com/img/fbopensource.png
Requested by
Host: engineering.fb.com
URL: https://engineering.fb.com/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2a04:fa87:fffd::c000:42ec , Ireland, ASN2635 (AUTOMATTIC, US),
Reverse DNS
Software
nginx /
Resource Hash
08577020800123a94ed17e369994852a0a1c05ea875abe776773fac88c50fa11
Security Headers
Name Value
Strict-Transport-Security max-age=31536000;includeSubdomains;preload

Request headers

sec-ch-ua
"Google Chrome";v="124", "Not:A-Brand";v="8", "Chromium";v="124"
Referer
https://engineering.fb.com/
Accept-Language
zh-SG,zh;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/124.0.0.0 Safari/537.36
sec-ch-ua-platform
"Win32"

Response headers

date
Mon, 06 May 2024 09:30:24 GMT
strict-transport-security
max-age=31536000;includeSubdomains;preload
x-rq
sin2 123 242 443
last-modified
Tue, 22 Aug 2023 12:44:53 GMT
server
nginx
etag
"64e4adc5-12a9"
x-cache
HIT
content-type
image/png
cache-control
max-age=31536000
accept-ranges
bytes
content-length
4777
meta_logo.png
engineering.fb.com/wp-content/themes/code-fb-com/img/ 		14 KB
14 KB 		Image
General
Check archive.org
Download Go to Show image
Full URL
https://engineering.fb.com/wp-content/themes/code-fb-com/img/meta_logo.png
Requested by
Host: engineering.fb.com
URL: https://engineering.fb.com/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2a04:fa87:fffd::c000:42ec , Ireland, ASN2635 (AUTOMATTIC, US),
Reverse DNS
Software
nginx /
Resource Hash
50e7e31d30ee2ce7b70c0fa524c2c270245a42fc1f6842a24d73b2d6e45d0e00
Security Headers
Name Value
Strict-Transport-Security max-age=31536000;includeSubdomains;preload

Request headers

sec-ch-ua
"Google Chrome";v="124", "Not:A-Brand";v="8", "Chromium";v="124"
Referer
https://engineering.fb.com/
Accept-Language
zh-SG,zh;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/124.0.0.0 Safari/537.36
sec-ch-ua-platform
"Win32"

Response headers

date
Mon, 06 May 2024 09:30:24 GMT
strict-transport-security
max-age=31536000;includeSubdomains;preload
x-rq
sin2 123 243 443
last-modified
Tue, 22 Aug 2023 12:44:53 GMT
server
nginx
etag
"64e4adc5-3791"
x-cache
HIT
content-type
image/png
cache-control
max-age=31536000
accept-ranges
bytes
content-length
14225
android.png
engineering.fb.com/wp-content/themes/code-fb-com/img/ 		2 KB
2 KB 		Image
General
Check archive.org
Download Go to Show image
Full URL
https://engineering.fb.com/wp-content/themes/code-fb-com/img/android.png
Requested by
Host: engineering.fb.com
URL: https://engineering.fb.com/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2a04:fa87:fffd::c000:42ec , Ireland, ASN2635 (AUTOMATTIC, US),
Reverse DNS
Software
nginx /
Resource Hash
d2bec5f5316d88ccd7002de34073446f76ca5d7f40d04a999bc743cc42345cdf
Security Headers
Name Value
Strict-Transport-Security max-age=31536000;includeSubdomains;preload

Request headers

sec-ch-ua
"Google Chrome";v="124", "Not:A-Brand";v="8", "Chromium";v="124"
Referer
https://engineering.fb.com/
Accept-Language
zh-SG,zh;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/124.0.0.0 Safari/537.36
sec-ch-ua-platform
"Win32"

Response headers

date
Mon, 06 May 2024 09:30:24 GMT
strict-transport-security
max-age=31536000;includeSubdomains;preload
x-rq
sin2 123 243 443
last-modified
Tue, 22 Aug 2023 12:44:53 GMT
server
nginx
etag
"64e4adc5-911"
x-cache
HIT
content-type
image/png
cache-control
max-age=31536000
accept-ranges
bytes
content-length
2321
ios.png
engineering.fb.com/wp-content/themes/code-fb-com/img/ 		1 KB
1 KB 		Image
General
Check archive.org
Download Go to Show image
Full URL
https://engineering.fb.com/wp-content/themes/code-fb-com/img/ios.png
Requested by
Host: engineering.fb.com
URL: https://engineering.fb.com/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2a04:fa87:fffd::c000:42ec , Ireland, ASN2635 (AUTOMATTIC, US),
Reverse DNS
Software
nginx /
Resource Hash
a307103cb2b2b6949644369c9a229f412901c9c8546fd677459f14948a02a629
Security Headers
Name Value
Strict-Transport-Security max-age=31536000;includeSubdomains;preload

Request headers

sec-ch-ua
"Google Chrome";v="124", "Not:A-Brand";v="8", "Chromium";v="124"
Referer
https://engineering.fb.com/
Accept-Language
zh-SG,zh;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/124.0.0.0 Safari/537.36
sec-ch-ua-platform
"Win32"

Response headers

date
Mon, 06 May 2024 09:30:25 GMT
strict-transport-security
max-age=31536000;includeSubdomains;preload
x-rq
sin2 123 243 443
last-modified
Tue, 22 Aug 2023 12:44:53 GMT
server
nginx
etag
"64e4adc5-421"
x-cache
HIT
content-type
image/png
cache-control
max-age=31536000
accept-ranges
bytes
content-length
1057
web.png
engineering.fb.com/wp-content/themes/code-fb-com/img/ 		487 B
722 B 		Image
General
Check archive.org
Download Go to Show image
Full URL
https://engineering.fb.com/wp-content/themes/code-fb-com/img/web.png
Requested by
Host: engineering.fb.com
URL: https://engineering.fb.com/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2a04:fa87:fffd::c000:42ec , Ireland, ASN2635 (AUTOMATTIC, US),
Reverse DNS
Software
nginx /
Resource Hash
580605d3ce0000bcf1f48a04b908a7d6d4a6bd8bb37b988d85768dea93ab02ac
Security Headers
Name Value
Strict-Transport-Security max-age=31536000;includeSubdomains;preload

Request headers

sec-ch-ua
"Google Chrome";v="124", "Not:A-Brand";v="8", "Chromium";v="124"
Referer
https://engineering.fb.com/
Accept-Language
zh-SG,zh;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/124.0.0.0 Safari/537.36
sec-ch-ua-platform
"Win32"

Response headers

date
Mon, 06 May 2024 09:30:25 GMT
strict-transport-security
max-age=31536000;includeSubdomains;preload
x-rq
sin2 123 242 443
last-modified
Tue, 22 Aug 2023 12:44:53 GMT
server
nginx
etag
"64e4adc5-1e7"
x-cache
HIT
content-type
image/png
cache-control
max-age=31536000
accept-ranges
bytes
content-length
487
backend.png
engineering.fb.com/wp-content/themes/code-fb-com/img/ 		2 KB
2 KB 		Image
General
Check archive.org
Download Go to Show image
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
H2
Security
TLS 1.3, , AES_128_GCM
Server
2a04:fa87:fffd::c000:42ec , Ireland, ASN2635 (AUTOMATTIC, US),
Reverse DNS
Software
nginx /
Resource Hash
19284533915784ca8dab4f71230450f0a71789ea2efc70c3e750cf2dca542bb2
Security Headers
Name Value
Strict-Transport-Security max-age=31536000;includeSubdomains;preload

Request headers

sec-ch-ua
"Google Chrome";v="124", "Not:A-Brand";v="8", "Chromium";v="124"
Referer
https://engineering.fb.com/
Accept-Language
zh-SG,zh;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/124.0.0.0 Safari/537.36
sec-ch-ua-platform
"Win32"

Response headers

date
Mon, 06 May 2024 09:30:25 GMT
strict-transport-security
max-age=31536000;includeSubdomains;preload
x-rq
sin2 123 243 443
last-modified
Tue, 22 Aug 2023 12:44:53 GMT
server
nginx
etag
"64e4adc5-899"
x-cache
HIT
content-type
image/png
cache-control
max-age=31536000
accept-ranges
bytes
content-length
2201
hardware.png
engineering.fb.com/wp-content/themes/code-fb-com/img/ 		388 B
623 B 		Image
General
Check archive.org
Download Go to Show image
Full URL
https://engineering.fb.com/wp-content/themes/code-fb-com/img/hardware.png
Requested by
Host: engineering.fb.com
URL: https://engineering.fb.com/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2a04:fa87:fffd::c000:42ec , Ireland, ASN2635 (AUTOMATTIC, US),
Reverse DNS
Software
nginx /
Resource Hash
7fdc47e6ee4d23f0b2cfd864b6a6e2480e93de89519fe31e0a964e7a0a6aff1f
Security Headers
Name Value
Strict-Transport-Security max-age=31536000;includeSubdomains;preload

Request headers

sec-ch-ua
"Google Chrome";v="124", "Not:A-Brand";v="8", "Chromium";v="124"
Referer
https://engineering.fb.com/
Accept-Language
zh-SG,zh;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/124.0.0.0 Safari/537.36
sec-ch-ua-platform
"Win32"

Response headers

date
Mon, 06 May 2024 09:30:25 GMT
strict-transport-security
max-age=31536000;includeSubdomains;preload
x-rq
sin2 123 243 443
last-modified
Tue, 22 Aug 2023 12:44:53 GMT
server
nginx
etag
"64e4adc5-184"
x-cache
HIT
content-type
image/png
cache-control
max-age=31536000
accept-ranges
bytes
content-length
388
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=6.5.2
Requested by
Host: engineering.fb.com
URL: https://engineering.fb.com/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2a04:fa87:fffd::c000:42ec , Ireland, 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="124", "Not:A-Brand";v="8", "Chromium";v="124"
Referer
https://engineering.fb.com/
Accept-Language
zh-SG,zh;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/124.0.0.0 Safari/537.36
sec-ch-ua-platform
"Win32"

Response headers

date
Mon, 06 May 2024 09:30:25 GMT
content-encoding
br
strict-transport-security
max-age=31536000;includeSubdomains;preload
last-modified
Tue, 09 Apr 2024 21:25:07 GMT
server
nginx
x-rq
sin2 123 243 443
etag
W/"6615b233-4926"
vary
Accept-Encoding
x-cache
HIT
content-type
application/javascript
cache-control
max-age=31536000
sdk.js
connect.facebook.net/en_US/ 		305 KB
87 KB 		Script
General
Check archive.org
Download Go to
Full URL
https://connect.facebook.net/en_US/sdk.js?hash=d0ccf4e56ca6e58056c43037531b9934
Requested by
Host: connect.facebook.net
URL: https://connect.facebook.net/en_US/sdk.js
Protocol
H3
Security
QUIC, , AES_128_GCM
Server
157.240.235.1 Singapore, Singapore, ASN32934 (FACEBOOK, US),
Reverse DNS
xx-fbcdn-shv-04-sin6.fbcdn.net
Software
/
Resource Hash
e1e2cbaee82bc4f9f65884366dde5341ec401160aa7f7259abe5a2760c446718
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="124", "Not:A-Brand";v="8", "Chromium";v="124"
Referer
https://engineering.fb.com/
Origin
https://engineering.fb.com
Accept-Language
zh-SG,zh;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/124.0.0.0 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
Mon, 06 May 2024 09:30:25 GMT
content-md5
BE9jSNpTv+suefCHEONUDg==
document-policy
force-load-at-top
cross-origin-resource-policy
cross-origin
alt-svc
h3=":443"; ma=86400
content-length
89046
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=17, rtx=0, c=23, mss=1232, tbw=4279, tp=8, tpl=0, uplat=1, ullat=-1
x-fb-debug
6CUi/QN6uZmT3skDR8pLbxxRRQBPypwJg7UkHQwx4PmenVoax5LGNhccAgxpb85/11Z1xGT/8s67bo4VAMRpFw==
cross-origin-embedder-policy-report-only
require-corp;report-to="coep_report"
x-fb-content-md5
7df721efdf06904a5b2600cc881c034b
cross-origin-opener-policy
same-origin-allow-popups;report-to="coop_report"
etag
"73d36058954cc8ae38f3ce100aa3a3ca"
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
*
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=(), 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=(), 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=(), window-management=(), xr-spatial-tracking=();report-to="permissions_policy"
x-frame-options
DENY
timing-allow-origin
*
priority
u=3,i
expires
Tue, 06 May 2025 07:30:14 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
2a04:fa87:fffd::c000:42ec , Ireland, 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="124", "Not:A-Brand";v="8", "Chromium";v="124"
Referer
https://engineering.fb.com/
Accept-Language
zh-SG,zh;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/124.0.0.0 Safari/537.36
sec-ch-ua-platform
"Win32"

Response headers

date
Mon, 06 May 2024 09:30:25 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
sin2 123 243 443
etag
W/"64e4adc5-15b6"
vary
Accept-Encoding
x-cache
HIT
content-type
image/x-icon
cache-control
max-age=31536000

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| google_tag_manager object| google_tag_data object| dataLayer 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| FB object| twemoji object| wp 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
157.240.235.1
157.240.235.15
2404:6800:4003:c02::8b
2606:50c0:8003::153
2a03:2880:f00c:10d:face:b00c:0:3
2a04:fa87:fffd::c000:421d
2a04:fa87:fffd::c000:42ec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