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GitHub Pages Nameservers, IP Ranges & DNS Settings

GitHub Pages is a developer hosting platform offering free static site hosting from GitHub repositories (served through Fastly). Here are its the records that identify it, and a checker to see whether any website is hosted on GitHub Pages.

Network data collected September 25, 2026 from Team Cymru, RIPEstat and live DNS.

Website Hosting Checker

Find out who hosts any website: host, CDN, CMS, email provider, registrar and SSL issuer

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GitHub Pages at a Glance

TypeDeveloper hosting platform
Websitepages.github.com
Network (ASN)No own autonomous system found
Customer nameserversNone: keep your DNS provider and add the records from the dashboard

GitHub Pages Nameservers

GitHub Pages does not ask customers to move their nameservers. Your domain stays with its current DNS provider, and you point it at GitHub Pages with the A, AAAA or CNAME record shown in your GitHub Pages dashboard (CNAME targets look like *.github.io). Verify the record afterwards with the DNS lookup.

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GitHub Pages IP Ranges and ASN

We have not found an autonomous system registered to GitHub Pages. Its sites answer from IP addresses that belong to other networks (cloud providers or CDNs), so IP ranges cannot identify GitHub Pages; the checker relies on the signals below instead.

How to Check if a Website Is Hosted on GitHub Pages

Enter the domain in the checker at the top of this page. It names GitHub Pages when one or more of these signals match, and lists each one as evidence:

  • The HTTP response carries an x-github-request-id header or a server header matching GitHub Pages.
  • The www record is a CNAME to *.github.io.

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GitHub Pages FAQ

What are GitHub Pages's nameservers?

GitHub Pages does not ask customers to switch nameservers. You keep DNS at your registrar or DNS provider and add the A, AAAA or CNAME record shown in your GitHub Pages dashboard.

What is GitHub Pages's ASN?

We have not found an autonomous system registered to GitHub Pages. Its sites are identified by HTTP headers and CNAME records instead of IP ranges.

How can I tell if a website is hosted on GitHub Pages?

Run the domain through the hosting checker on this page. It reports GitHub Pages when the HTTP response carries an x-github-request-id header or a server header matching GitHub Pages, and it shows every matching signal as evidence.

Is GitHub Pages a web host or a CDN?

GitHub Pages is a developer hosting platform: it provides free static site hosting from GitHub repositories (served through Fastly).

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Other Hosting Providers

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GitHub Pages is a trademark of its owner. DNS Robot is not affiliated with GitHub Pages unless an offer above is marked sponsored.