media.githubusercontent.com - robtex.com

media.githubusercontent.com

DNSSEC⚠️ Not signed
A2606:50c0:8000::154🇺🇸 Fastly2606:50c0:8000::/48 88 Colin P Kelly Jr Street San Francisco CA 94107 United States
A2606:50c0:8001::154🇺🇸 Fastly2606:50c0:8001::/48 + 88 Colin P Kelly Jr Street San Francisco CA 94107 United States
A2606:50c0:8002::154🇺🇸 Fastly2606:50c0:8002::/48 + 88 Colin P Kelly Jr Street San Francisco CA 94107 United States
A2606:50c0:8003::154🇺🇸 Fastly2606:50c0:8003::/48 + 88 Colin P Kelly Jr Street San Francisco CA 94107 United States
A185.199.108.133🇺🇸 Fastly185.199.108.0/24 GitHub - 185.199.108.0/24
A185.199.109.133🇺🇸 Fastly185.199.109.0/24 GitHub - 185.199.109.0/24
A185.199.110.133🇺🇸 Fastly185.199.110.0/24 GitHub - 185.199.110.0/24
A185.199.111.133🇺🇸 Fastly185.199.111.0/24 GitHub - 185.199.111.0/24

githubusercontent.com

DNSSEC⚠️ Not signed
NSns-1411.awsdns-48.org ⭐
NSdns1.p01.nsone.net
NSdns2.p01.nsone.net
NSdns3.p01.nsone.net
NSdns4.p01.nsone.net
NSns-181.awsdns-22.com
NSns-1867.awsdns-41.co.uk
NSns-596.awsdns-10.net
TXTglobalsign-domain-verification=2wiwCKYW7kQ6LJntfIcdi5EG56lUlQIRj_VGJnEEKb
TXTv=spf1 a -all
SOAns-1411.awsdns-48.orgawsdns-hostmaster@amazon.com serial=1
rank #749 globally
rank #431 in the tld
this domain is a GitHub-owned content delivery network domain used to serve user-generated content and assets associated with GitHub features, such as images, avatars, attachments, and static files linked from repositories, issues, or pages. It functions as a CDN to efficiently deliver those resources without loading them directly from repository URLs.📈 Tranco rank: #759
githubusercontent.com - Tranco Rank (30d: ↓-40)712720730740750760770771Mar 15Mar 24Apr 2Apr 11Apr 20Apr 21Rank#719#759

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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DNS History

10 records (8 active, 2 former)

201820192020202120222023202420252026A185.199.108.133185.199.109.133185.199.110.133185.199.111.1332606:50c0:8000::1542606:50c0:8001::1542606:50c0:8002::1542606:50c0:8003::154151.101.60.133CNAMEgithub.map.fastly.net
○A151.101.60.1332017-03-23 → 2017-03-23 · 3 obs
● 2017-03-23 02:07:04
○ 2026-02-17 12:00:04
○ 2026-04-23 22:32:58
●A185.199.108.1332026-02-17 → 2026-04-23 · 3 obs
○ 2017-03-23 02:07:04
● 2026-02-17 12:00:04
● 2026-04-23 22:32:58
●A185.199.109.1332026-02-17 → 2026-04-23 · 3 obs
○ 2017-03-23 02:07:04
● 2026-02-17 12:00:04
● 2026-04-23 22:32:58
●A185.199.110.1332026-02-17 → 2026-04-23 · 3 obs
○ 2017-03-23 02:07:04
● 2026-02-17 12:00:04
● 2026-04-23 22:32:58
●A185.199.111.1332026-02-17 → 2026-04-23 · 3 obs
○ 2017-03-23 02:07:04
● 2026-02-17 12:00:04
● 2026-04-23 22:32:58
●A2606:50c0:8000::1542026-02-17 → 2026-04-23 · 3 obs
○ 2017-03-23 02:07:04
● 2026-02-17 12:00:04
● 2026-04-23 22:32:58
●A2606:50c0:8001::1542026-02-17 → 2026-04-23 · 3 obs
○ 2017-03-23 02:07:04
● 2026-02-17 12:00:04
● 2026-04-23 22:32:58
●A2606:50c0:8002::1542026-02-17 → 2026-04-23 · 3 obs
○ 2017-03-23 02:07:04
● 2026-02-17 12:00:04
● 2026-04-23 22:32:58
●A2606:50c0:8003::1542026-02-17 → 2026-04-23 · 3 obs
○ 2017-03-23 02:07:04
● 2026-02-17 12:00:04
● 2026-04-23 22:32:58
○CNAMEgithub.map.fastly.net2017-03-23 → 2017-03-23 · 3 obs
● 2017-03-23 02:07:04
○ 2026-02-17 12:00:04
○ 2026-04-23 22:32:58

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coml.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...-
githubusercontent.comns-181.awsdns-22.com, ns-596.awsdns-10.net, ns-1867.awsdns-41.co.uk, ns-1411.awsdns-48.org...2 records

✅ Authoritative Response

Server:205.251.192.181

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for githubusercontent.com (unsigned zone)

⏱️ Timing

Total: 295ms | Queries: -

📄 Records

TypeCountSample Data
A4185.199.108.133, 185.199.109.133...
AAAA42606:50c0:8000::154, 2606:50c0:8001::154...

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns-181.awsdns-22.com, ns-181.awsdns-22.com)

Analysis

IP Addresses

media.githubusercontent.com resolves to eight IP numbers: 2606:50c0:8000::154, 2606:50c0:8001::154, 2606:50c0:8002::154, 2606:50c0:8003::154, 185.199.108.133, 185.199.109.133, 185.199.110.133 and 185.199.111.133.

Other host names such as ksclib.githubusercontent.com, 190.168.0.1.githubusercontent.com, prod.github.map.fastlylb.net, 185.199.110.133objects.githubusercontent.com and 212-239.githubusercontent.com share IP numbers with media.githubusercontent.com.