copilot-proxy.githubusercontent.com - dns.ninja

copilot-proxy.githubusercontent.com

githubusercontent.com

githubusercontent.com

githubusercontent.comis a content-delivery domain operated by GitHub (a Microsoft subsidiary), used exclusively to serve static assets — raw source files, images, release artifacts, and Git LFS objects — from GitHub repositories, keeping user-supplied content isolated from the maingithub.comorigin for security reasons.

Key facts

• Owner / operator: GitHub, Inc. (subsidiary of Microsoft Corporation)
• TLD:.com— gTLD
• Primary purpose: CDN origin for raw repository content, user-uploaded images, release assets, and Git LFS objects hosted on GitHub
• Status: active

Notable subdomains or services

The domain is not a user-facing hosting service, but several well-known subdomain patterns exist:

• raw.githubusercontent.com////— serves raw (unrendered) file content directly from any public repository branch or commit
• avatars.githubusercontent.com— serves user and organisation avatar images
• camo.githubusercontent.com— GitHub's image-proxy service (rewrites external images in Markdown through this origin)
• objects.githubusercontent.com— serves Git LFS objects and release binary assets
• user-images.githubusercontent.com— stores images uploaded by users in issues, pull requests, and comments
• private-user-images.githubusercontent.com— same as above for private/authenticated contexts

Related domains

• github.com— main GitHub platform (code hosting, pull requests, Actions, etc.)
• github.io— GitHub Pages hosting; user sites follow the pattern.github.io
• githubassets.com— serves GitHub's own UI static assets (JS, CSS, icons)

Overview

githubusercontent.com is GitHub's content delivery network (CDN) domain used to serve user-generated content and static assets. It separates raw file content from the main github.com domain for security and performance reasons.

Primary Uses

• raw.githubusercontent.com — Serves raw file content from repositories (source code, configuration files, scripts)
• avatars.githubusercontent.com — Hosts user profile pictures and organization logos
• camo.githubusercontent.com — Proxies external images in README files and issues for privacy/security
• objects.githubusercontent.com — Serves Git LFS (Large File Storage) objects
• user-images.githubusercontent.com — Hosts images uploaded to issues, comments, and discussions

Technical Infrastructure

DNS Provider: Dual-provider setup with AWS Route 53 and NS1 for redundancy

Nameservers:

• AWS: ns-181.awsdns-22.com, ns-596.awsdns-10.net, ns-1867.awsdns-41.co.uk, ns-1411.awsdns-48.org
• NS1: dns1.p01.nsone.net, dns2.p01.nsone.net, dns3.p01.nsone.net, dns4.p01.nsone.net

Security: SPF record configured (v=spf1 a -all). DNSSEC is not enabled.

Ownership

Owned and operated by GitHub, Inc., a subsidiary of Microsoft Corporation since 2018. The domain serves billions of requests daily as part of GitHub's infrastructure supporting over 100 million developers worldwide.

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