da-info

github.com

HTTPSyes
HTTP → HTTPSyes
TLS validyes
IPv6no
DNSSECno
Security score85/100
CDNGitHub Pages

Redirects & reachability

HTTPS reachableyes
HTTP reachableyes
HTTP → HTTPS yes (301 → https://github.com/)
www.github.com → github.com yes (301 → https://github.com/)
github.com → www.github.com no (200 )
Final URLhttps://github.com/
Final status200
HTTP versionHTTP/1.1
Response time251 ms
Content-Typetext/html; charset=utf-8
Servergithub.com

TLS

Valid chainyes
TLS versionTLSv1_3
Cipher suiteTLS13_AES_128_GCM_SHA256
SubjectCN=github.com
IssuerC=GB, O=Sectigo Limited, CN=Sectigo Public Server Authentication CA DV E36
Not before2026-03-06 0:00:00.0 +00:00:00
Not after2026-06-03 23:59:59.0 +00:00:00 · 36 days left
KeyOID(1.2.840.10045.2.1) (520 bits)
SignatureOID(1.2.840.10045.4.3.2)
Chain length3
SANs github.comwww.github.com

Hosting

Primary IP140.82.113.4
Reverse DNSlb-140-82-113-4-iad.github.com
ASNAS36459
ASN orgGITHUB - GitHub, Inc., US
ASN countryUS
ASN prefix140.82.113.0/24
CDN hintGitHub Pages

Registrar

RegistrarMarkMonitor Inc.
Registrar URLhttp://www.markmonitor.com
WHOIS serverwhois.verisign-grs.com
Created2007-10-09T18:20:50Z
Updated2024-09-07T09:16:32Z
Expires2026-10-09T18:20:50Z
StatusclientDeleteProhibited https://icann.org/epp#clientDeleteProhibitedclientTransferProhibited https://icann.org/epp#clientTransferProhibitedclientUpdateProhibited https://icann.org/epp#clientUpdateProhibited
Name serversdns1.p08.nsone.netdns2.p08.nsone.netdns3.p08.nsone.netdns4.p08.nsone.netns-1283.awsdns-32.orgns-1707.awsdns-21.co.ukns-421.awsdns-52.comns-520.awsdns-01.net

DNS

A140.82.113.4
AAAA (IPv6)—
www A140.82.113.4
www AAAA—
NSdns1.p08.nsone.net.dns2.p08.nsone.net.dns3.p08.nsone.net.dns4.p08.nsone.net.ns-1283.awsdns-32.org.ns-1707.awsdns-21.co.uk.ns-421.awsdns-52.com.ns-520.awsdns-01.net.
MX 0 github-com.mail.protection.outlook.com.
CAA0 issue digicert.com0 issue globalsign.com0 issue letsencrypt.org0 issue sectigo.com0 issuewild digicert.com0 issuewild letsencrypt.org0 issuewild sectigo.com
DNSSECno
TXT
MS=6BF03E6AF5CB689E315FB6199603BABF2C88D805
MS=ms44452932
MS=ms58704441
TAILSCALE-xOzoDvFUzZr5YYVCQFuD
adobe-idp-site-verification=b92c9e999aef825edc36e0a3d847d2dbad5b2fc0e05c79ddd7a16139b48ecf4b
apple-domain-verification=RyQhdzTl6Z6x8ZP4
atlassian-domain-verification=jjgw98AKv2aeoYFxiL/VFaoyPkn3undEssTRuMg6C/3Fp/iqhkV4HVV7WjYlVeF8
calendly-site-verification=at0DQARi7IZvJtXQAWhMqpmIzpvoBNF7aam5VKKxP
docusign=087098e3-3d46-47b7-9b4e-8a23028154cd
facebook-domain-verification=39xu4jzl7roi7x0n93ldkxjiaarx50
google-site-verification=82Le34Flgtd15ojYhHlGF_6g72muSjamlMVThBOJpks
google-site-verification=UTM-3akMgubp6tQtgEuAkYNYLyYAvpTnnSrDMWoDR3o
jamf-site-verification=XtaPNIYghF_e_xRDI8CjgQ
krisp-domain-verification=ZlyiK7XLhnaoUQb2hpak1PLY7dFkl1WE
loom-site-verification=f3787154f1154b7880e720a511ea664d
miro-verification=d2e174fdb00c71e0bcf58f8e58c3da2dd80dcfa9
shopify-verification-code=t1YPwcmvnxZyBycaCpk1MPyWoFs72o
stripe-verification=f88ef17321660a01bab1660454192e014defa29ba7b8de9633c69d6b4912217f
v=spf1 ip4:192.30.252.0/22 include:spf.protection.outlook.com include:_netblocks.google.com include:_netblocks2.google.com include:mail.zendesk.com include:_spf…

Email

SPFv=spf1 ip4:192.30.252.0/22 include:spf.protection.outlook.com include:_netblocks.google.com include:_netblocks2.google.com include:mail.zendesk.com include:_spf.salesforce.com include:servers.mcsv.net include:mktomail.com include:sendgrid.net ip4:62.253.227.114 ip4:166.78.69.169 ip4:166.78.69.170 ip4:166.78.71.131 ~all
DMARCv=DMARC1; p=quarantine; sp=reject; pct=100; rua=mailto:dmarc@github.com; ruf=mailto:dmarc@github.com; fo=1
MTA-STS—
BIMI—
DKIM selectors found googleselector1k1
DKIM selectors probed default, google, selector1, selector2, k1, mail, mandrill

Page metadata

TitleGitHub · Change is constant. GitHub keeps you ahead. · GitHub
DescriptionJoin the world's most widely adopted, AI-powered developer platform where millions of developers, businesses, and the largest open source community build software that advances humanity.
Canonicalhttps://github.com
Langen
Theme color#1e2327
Generator—
OG titleGitHub · Change is constant. GitHub keeps you ahead.
OG descriptionJoin the world's most widely adopted, AI-powered developer platform where millions of developers, businesses, and the largest open source community build software that advances humanity.
OG imagehttps://images.ctfassets.net/8aevphvgewt8/4pe4eOtUJ0ARpZRE4fNekf/f52b1f9c52f059a33170229883731ed0/GH-Homepage-Universe-img.png
OG type / siteobject · GitHub
Twitter cardsummary_large_image

Favicons

standard
standard
image/png
svg
svg
image/svg+xml

Manifest: https://github.com/manifest.json

Technology

Server: github.com

hosting: GitHub Pages js-library: React

Security headers

HSTS max-age=31536000; includeSubdomains; preload
max-age 31536000 · includeSubDomains · preload
CSPdefault-src 'none'; base-uri 'self'; child-src github.githubassets.com github.com/assets-cdn/worker/ github.com/assets/ gist.github.com/assets-cdn/worker/; connect-src 'self' uploads.github.com www.githubstatus.com collector.github.com raw.githubusercontent.com api.github.com github-cloud.s3.amazonaws.com github-production-repository-file-5c1aeb.s3.amazonaws.com github-production-upload-manifest-f…
X-Frame-Optionsdeny
X-Content-Type-Optionsnosniff
Referrer-Policyorigin-when-cross-origin, strict-origin-when-cross-origin
Permissions-Policy—
COOP / COEP / CORP — / — / —
Cookies Secure: yes · HttpOnly: yes

Well-known files

  • robots.txt
  • sitemap.xml
  • .well-known/security.txt
  • humans.txt
  • ads.txt
  • manifest.json

View as JSON