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github.com

DNS Records

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Hosting & Network

github.com runs on AS36459, with DNS by AWS Route 53 and email via Microsoft 365.

Hosting network
AS36459AS36459
Managed DNS
AWS Route 53
Email
Microsoft 365
IPv6 (AAAA)
Not enabled
CAA pinning
Set

Sits alongside 2,400 other sites on AS36459. Stable here since we started watching (Sep 1, 2026).

The apex and www are the same hosting — the apex via A records, www via a CNAME to github.com.

DNS Records for github.com

HostnameTypeTTLPriorityContent
github.comNS0dns2.p08.nsone.net
github.comNS0ns-1283.awsdns-32.org
github.comNS0ns-520.awsdns-01.net
github.comNS0dns1.p08.nsone.net
github.comNS0dns4.p08.nsone.net
github.comNS0dns3.p08.nsone.net
github.comNS0ns-1707.awsdns-21.co.uk
github.comNS0ns-421.awsdns-52.com
github.comMX0github-com.mail.protection.outlook.com
github.comSOA3600dns1.p08.nsone.net hostmaster.nsone.net 1656468023 43200 7200 1209600 3600
github.comA0140.82.114.4
github.comCAA00 issuewild digicert.com
github.comCAA00 issuewild sectigo.com
github.comCAA00 issue globalsign.com
github.comCAA00 issue digicert.com
github.comCAA00 issue sectigo.com
github.comCAA00 issuewild letsencrypt.org
github.comCAA00 issue letsencrypt.org
github.comTXT0google-site-verification=82Le34Flgtd15ojYhHlGF_6g72muSjamlMVThBOJpks
github.comTXT0MS=ms58704441
github.comTXT0stripe-verification=f88ef17321660a01bab1660454192e014defa29ba7b8de9633c69d6b4912217f
github.comTXT0docusign=087098e3-3d46-47b7-9b4e-8a23028154cd
github.comTXT0krisp-domain-verification=ZlyiK7XLhnaoUQb2hpak1PLY7dFkl1WE
github.comTXT0loom-site-verification=f3787154f1154b7880e720a511ea664d
github.comTXT000Dd0000000hHE0=1TBKg000000TN2r
github.comTXT0google-site-verification=UTM-3akMgubp6tQtgEuAkYNYLyYAvpTnnSrDMWoDR3o
github.comTXT0serval-domain-verification-ydryhj=qbkiEakpwEpTvHh5fIiCqtaue
github.comTXT0openai-domain-verification=dv-3nh33eQwdkotMIAzLrIDVZo1
github.comTXT0jamf-site-verification=XtaPNIYghF_e_xRDI8CjgQ
github.comTXT0TAILSCALE-xOzoDvFUzZr5YYVCQFuD
github.comTXT0MS=ms44452932
github.comTXT0apple-domain-verification=RyQhdzTl6Z6x8ZP4
github.comTXT0facebook-domain-verification=39xu4jzl7roi7x0n93ldkxjiaarx50
github.comTXT0calendly-site-verification=at0DQARi7IZvJtXQAWhMqpmIzpvoBNF7aam5VKKxP
github.comTXT0cursor-domain-verification-gtfwmt=1rfLOtiTngX5QSxD5HvNKTvm3
github.comTXT0shopify-verification-code=t1YPwcmvnxZyBycaCpk1MPyWoFs72o
github.comTXT0atlassian-domain-verification=jjgw98AKv2aeoYFxiL/VFaoyPkn3undEssTRuMg6C/3Fp/iqhkV4HVV7WjYlVeF8
github.comTXT0MS=6BF03E6AF5CB689E315FB6199603BABF2C88D805
github.comTXT0adobe-idp-site-verification=b92c9e999aef825edc36e0a3d847d2dbad5b2fc0e05c79ddd7a16139b48ecf4b
github.comTXT0anthropic-domain-verification-4az7qn=if8YWuRRqwLycGJDooumzHtxm
github.comTXT0miro-verification=d2e174fdb00c71e0bcf58f8e58c3da2dd80dcfa9
github.comTXT0v=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
www.github.comCNAME0github.com
www.github.comSOA86400ns-1707.awsdns-21.co.uk awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
www.github.comMX0github-com.mail.protection.outlook.com
www.github.comCAA00 issue digicert.com
www.github.comCAA00 issuewild digicert.com
www.github.comCAA00 issue sectigo.com
www.github.comCAA00 issue letsencrypt.org
www.github.comCAA00 issuewild sectigo.com
www.github.comCAA00 issuewild letsencrypt.org
www.github.comCAA00 issue globalsign.com
www.github.comNS0dns1.p08.nsone.net
www.github.comNS0ns-1283.awsdns-32.org
www.github.comNS0ns-421.awsdns-52.com
www.github.comNS0dns4.p08.nsone.net
www.github.comNS0ns-520.awsdns-01.net
www.github.comNS0ns-1707.awsdns-21.co.uk
www.github.comNS0dns3.p08.nsone.net
www.github.comNS0dns2.p08.nsone.net
www.github.comA0140.82.113.3
www.github.comTXT0MS=ms58704441
www.github.comTXT0miro-verification=d2e174fdb00c71e0bcf58f8e58c3da2dd80dcfa9
www.github.comTXT0krisp-domain-verification=ZlyiK7XLhnaoUQb2hpak1PLY7dFkl1WE
www.github.comTXT0anthropic-domain-verification-4az7qn=if8YWuRRqwLycGJDooumzHtxm
www.github.comTXT0TAILSCALE-xOzoDvFUzZr5YYVCQFuD
www.github.comTXT0serval-domain-verification-ydryhj=qbkiEakpwEpTvHh5fIiCqtaue
www.github.comTXT0apple-domain-verification=RyQhdzTl6Z6x8ZP4
www.github.comTXT0openai-domain-verification=dv-3nh33eQwdkotMIAzLrIDVZo1
www.github.comTXT0MS=ms44452932
www.github.comTXT0jamf-site-verification=XtaPNIYghF_e_xRDI8CjgQ
www.github.comTXT0cursor-domain-verification-gtfwmt=1rfLOtiTngX5QSxD5HvNKTvm3
www.github.comTXT0MS=6BF03E6AF5CB689E315FB6199603BABF2C88D805
www.github.comTXT0docusign=087098e3-3d46-47b7-9b4e-8a23028154cd
www.github.comTXT0atlassian-domain-verification=jjgw98AKv2aeoYFxiL/VFaoyPkn3undEssTRuMg6C/3Fp/iqhkV4HVV7WjYlVeF8
www.github.comTXT0calendly-site-verification=at0DQARi7IZvJtXQAWhMqpmIzpvoBNF7aam5VKKxP
www.github.comTXT0adobe-idp-site-verification=b92c9e999aef825edc36e0a3d847d2dbad5b2fc0e05c79ddd7a16139b48ecf4b
www.github.comTXT0v=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
www.github.comTXT0google-site-verification=UTM-3akMgubp6tQtgEuAkYNYLyYAvpTnnSrDMWoDR3o
www.github.comTXT0shopify-verification-code=t1YPwcmvnxZyBycaCpk1MPyWoFs72o
www.github.comTXT0loom-site-verification=f3787154f1154b7880e720a511ea664d
www.github.comTXT0stripe-verification=f88ef17321660a01bab1660454192e014defa29ba7b8de9633c69d6b4912217f
www.github.comTXT000Dd0000000hHE0=1TBKg000000TN2r
www.github.comTXT0google-site-verification=82Le34Flgtd15ojYhHlGF_6g72muSjamlMVThBOJpks
www.github.comTXT0facebook-domain-verification=39xu4jzl7roi7x0n93ldkxjiaarx50

Get alerted the moment github.com's DNS changes

This page is today's snapshot. Turn on monitoring and we'll watch github.com continuously, notifying you the moment anything moves across all three signals:

DNS monitor showing the hosting provider, current A, MX, NS, and TXT records, and a history of MX and TXT changes

Uptime

We visit the site from multiple regions worldwide and email you within minutes if it goes down, with a per-region breakdown so a real outage stands out from a regional blip.

DNS changes

We watch NS, MX, CAA, CNAME, TXT and A/AAAA records, and identify the host, network, and ASN behind them, so a real migration or hijack stands out from routine noise.

TLS certificate

We warn you 30, 14, 7, and 1 days before it expires, and flag it if the issuing authority changes or the certificate is unexpectedly replaced.

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Beta

Answers use the live DNS records shown on this page. AI-generated — double-check anything important.

About DNS Records

DNS (Domain Name System) records are instructions that provide information about a domain, including its IP addresses, mail servers, and other services. Common record types include:

  • SOA (Start of Authority) - Contains administrative information about the zone
  • NS (Nameserver) - Specifies authoritative nameservers for the domain
  • A (Address) - Maps a domain to an IPv4 address
  • AAAA - Maps a domain to an IPv6 address
  • CNAME (Canonical Name) - Creates an alias pointing to another domain
  • MX (Mail Exchange) - Specifies mail servers for the domain