`test.github.com`

DNSSEC	⚠️ Not signed
A	192.0.2.1
MX	`aspmx.l.google.com` ⭐
		A	2607:f8b0:4023:c06::1a^{🇺🇸 Google2607:f8b0::/32}
			PTR	`dz-in-f26.1e100.net`
		A	142.250.141.27^{🇺🇸 Google142.250.141.0/24}
			PTR	`dd-in-f27.1e100.net`
MX	`alt1.aspmx.l.google.com`⁽⁵⁾
		A	2607:f8b0:4023:2801::1b^{🇺🇸 Google2607:f8b0::/32}
			PTR	`lcausi-in-f27.1e100.net`
		A	192.178.128.27^{🇺🇸 Google192.178.128.0/24}
			PTR	`lcausi-in-f27.1e100.net`
MX	`alt2.aspmx.l.google.com`⁽⁵⁾
		A	2607:f8b0:4023:1015::1b^{🇺🇸 Google2607:f8b0::/32}
			PTR	`yudfwta-in-f27.1e100.net`
		A	172.253.135.26^{🇺🇸 Google172.253.135.0/24}
			PTR	`yudfwta-in-f26.1e100.net`
MX	`alt3.aspmx.l.google.com`⁽¹⁰⁾
		A	2607:f8b0:4023:3003::1a^{🇺🇸 Google2607:f8b0::/32}
			PTR	`yulnkjt-in-f26.1e100.net`
		A	172.253.145.26^{🇺🇸 Google172.253.145.0/24}
			PTR	`yulnkjt-in-f26.1e100.net`
MX	`alt4.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:400c:c00::1b^{🇧🇪 Google2a00:1450:400c::/48}
			PTR	`ws-in-f27.1e100.net`
			PTR	`ws-in-x1b.1e100.net`
		A	173.194.76.26^{🇺🇸 Google173.194.76.0/24}
			PTR	`ws-in-f26.1e100.net`
TXT	`v=spf1 include:_spf.google.com ~all`

`github.com`

	DNSSEC	⚠️ Not signed
	A	140.82.112.3^{🇺🇸 GITHUB140.82.112.0/24 GitHub}
	NS	`dns1.p08.nsone.net` ⭐
	NS	`dns2.p08.nsone.net`
	NS	`dns3.p08.nsone.net`
	NS	`dns4.p08.nsone.net`
	NS	`ns-1283.awsdns-32.org`
	NS	`ns-1707.awsdns-21.co.uk`
	NS	`ns-421.awsdns-52.com`
	NS	`ns-520.awsdns-01.net`
	MX	`github-com.mail.protection.outlook.com` ⭐
	TXT	`MS=6BF03E6AF5CB689E315FB6199603BABF2C88D805`
	TXT	`MS=ms44452932`
	TXT	`MS=ms58704441`
	TXT	`TAILSCALE-xOzoDvFUzZr5YYVCQFuD`
	TXT	`adobe-idp-site-verification=b92c9e999aef825edc36e0a3d847d2dbad5b2fc0e05c79ddd...`
	TXT	`apple-domain-verification=RyQhdzTl6Z6x8ZP4`
	TXT	`atlassian-domain-verification=jjgw98AKv2aeoYFxiL/VFaoyPkn3undEssTRuMg6C/3Fp/i...`
	TXT	`calendly-site-verification=at0DQARi7IZvJtXQAWhMqpmIzpvoBNF7aam5VKKxP`
	TXT	`docusign=087098e3-3d46-47b7-9b4e-8a23028154cd`
	TXT	`facebook-domain-verification=39xu4jzl7roi7x0n93ldkxjiaarx50`
	TXT	`google-site-verification=82Le34Flgtd15ojYhHlGF_6g72muSjamlMVThBOJpks`
	TXT	`google-site-verification=UTM-3akMgubp6tQtgEuAkYNYLyYAvpTnnSrDMWoDR3o`
	TXT	`jamf-site-verification=XtaPNIYghF_e_xRDI8CjgQ`
	TXT	`krisp-domain-verification=ZlyiK7XLhnaoUQb2hpak1PLY7dFkl1WE`
	TXT	`loom-site-verification=f3787154f1154b7880e720a511ea664d`
	TXT	`miro-verification=d2e174fdb00c71e0bcf58f8e58c3da2dd80dcfa9`
	TXT	`shopify-verification-code=t1YPwcmvnxZyBycaCpk1MPyWoFs72o`
	TXT	`stripe-verification=f88ef17321660a01bab1660454192e014defa29ba7b8de9633c69d6b4...`
	TXT	`v=spf1 ip4:192.30.252.0/22 include:spf.protection.outlook.com include:_netblo...`
	SOA	`dns1.p08.nsone.net`hostmaster@nsone.net serial=1656468023

WOT: SAFE (94/100)
rank #10 globally
rank #10 in the tld
This domain name "github.com" refers to the official website of GitHub, a platform primarily used by software developers for collaboration and version control. GitHub provides hosting for software development and a community of developers where they can review code, manage projects, and build software alongside millions of other developers. It is one of the largest and most advanced development platforms in the world.🔒 HSTS Preload (+subdomains)
WOT: SAFE (94/100)
📈 Tranco rank: #29

GitHub is the world's largest source code hosting platform and developer community, founded in 2008 and acquired by Microsoft in 2018 for $7.5 billion. With over 100 million developers and 400 million repositories, GitHub has become the central hub for open-source development and enterprise software collaboration.

The platform pioneered social coding features like pull requests, issues, and forking that have become industry standards. GitHub hosts the source code for countless major projects including Linux, React, TensorFlow, and VS Code. The company also provides GitHub Actions for CI/CD, GitHub Pages for static hosting, Copilot for AI-assisted coding, and comprehensive security scanning.

GitHub's infrastructure runs on Microsoft Azure, having migrated from its original Rackspace-based setup. The platform uses a globally distributed architecture with multiple data centers for redundancy. GitHub experienced a famous 2018 DDoS attack that peaked at 1.35 Tbps, the largest recorded at that time, which they mitigated using Akamai Prolexic.

DNS for github.com is managed through multiple providers for resilience, with authoritative nameservers including dns1-4.p08.nsone.net (NS1). The site uses advanced DNS configurations including DNSSEC and CAA records for certificate authority authorization. GitHub's global CDN delivers assets from edge locations worldwide for optimal performance.

Same first word

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test.im

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test.fi

test.synology.me

test.li

test.be

test.cd

test.info

test.kitchen

test.restaurant

test.ro

test.biz

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test.world

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test.net

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test.mw

test.co.za

test.jp

test.express

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test.gov.ru

test.org

test.bg

test.ch

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test.ua

test.afl

test.report

test.com.tw

test.es

test.awsapps.com

test.gov.il

test.show

test.support

test.com.pe

test.box

test.com

test.co.ua

test.com.au

test.solutions

test.co.kr

test.sh

test.bi

test.cat

test.it

test.nl

test.ci

test.su

test.dk

test.if.ua

test.cm

test.homeip.net

test.rs.ba

test.me

test.run

test.edgesuite.net

test.edu.mx

test.net.in

test.tn

test.pt

test.zone

test.financial

test.vin

test.uz

test.edgekey.net

test.md

test.kr

test.ne.jp

test.co.jp

test.casa

test.ly

test.duckdns.org

test.no

test.fr

test.ee

test.de

test.pro

test.am

Similar names

sett.jp

tste.eu

estt.fi

stte.net

tets.us

tets.cn

sett.fi

tset.fi

tset.com.cn

stet.biz

etts.net

sett.work

estt.se

ttse.org

tets.ly

tset.org.tw

stet.fr

ttes.ru

tset.ru

stet.org

stte.com.cn

etts.de

etts.fi

sett.be

ttes.com.my

sett.in

ttes.com

stet.net

estt.co.jp

etts.cn

sett.biz

stte.sh.cn

sett.de

stte.com.br

stet.ch

ttes.co.jp

ttes.es

stet.com.sg

ttse.co.jp

sett.ru

tset.com

ttes.gov.tw

stet.cz

tset.kr

sett.cz

etts.com

ttse.us

DNS History

6 records (6 active, 0 former)

●MXalt1.aspmx.l.google.com2026-02-23 → 2026-03-27 · 2 obs

● 2026-02-23 12:14:56
● 2026-03-27 13:18:30

●MXalt2.aspmx.l.google.com2026-02-23 → 2026-03-27 · 2 obs

● 2026-02-23 12:14:56
● 2026-03-27 13:18:30

●MXalt3.aspmx.l.google.com2026-02-23 → 2026-03-27 · 2 obs

● 2026-02-23 12:14:56
● 2026-03-27 13:18:30

●MXalt4.aspmx.l.google.com2026-02-23 → 2026-03-27 · 2 obs

● 2026-02-23 12:14:56
● 2026-03-27 13:18:30

●MXaspmx.l.google.com2026-02-23 → 2026-03-27 · 2 obs

● 2026-02-23 12:14:56
● 2026-03-27 13:18:30

●A192.0.2.12019-12-13 → 2026-03-27 · 2 obs

● 2019-12-13 12:37:58
● 2026-03-27 13:18:30

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...	-
github.com	ns-520.awsdns-01.net, ns-421.awsdns-52.com, ns-1707.awsdns-21.co.uk, ns-1283.awsdns-32.org...	1 record

✅ Authoritative Response

Server:205.251.197.3

NS records: ns-520.awsdns-01.net, ns-421.awsdns-52.com, ns-1707.awsdns-21.co.uk, ns-1283.awsdns-32.org, dns1.p08.nsone.net, dns2.p08.nsone.net, dns3.p08.nsone.net, dns4.p08.nsone.net