`10avatars1.githubusercontent.com`

DNSSEC	⚠️ Not signed
A	185.199.108.133^{🇺🇸 Fastly185.199.108.0/24 GitHub - 185.199.108.0/24}
		PTR	`cdn-185-199-108-133.github.com`
A	185.199.109.133^{🇺🇸 Fastly185.199.109.0/24 GitHub - 185.199.109.0/24}
A	185.199.110.133^{🇺🇸 Fastly185.199.110.0/24 GitHub - 185.199.110.0/24}
A	185.199.111.133^{🇺🇸 Fastly185.199.111.0/24 GitHub - 185.199.111.0/24}

`githubusercontent.com`

	DNSSEC	⚠️ Not signed
	NS	`ns-1411.awsdns-48.org` ⭐
	NS	`dns1.p01.nsone.net`
	NS	`dns2.p01.nsone.net` 🔒
	NS	`dns3.p01.nsone.net` 🔒
	NS	`dns4.p01.nsone.net` 🔒
	NS	`ns-181.awsdns-22.com`
	NS	`ns-1867.awsdns-41.co.uk`
	NS	`ns-596.awsdns-10.net`
	TXT	`globalsign-domain-verification=2wiwCKYW7kQ6LJntfIcdi5EG56lUlQIRj_VGJnEEKb`
	TXT	`v=spf1 a -all`
	SOA	`ns-1411.awsdns-48.org`awsdns-hostmaster@amazon.com serial=1

rank #748 globally
rank #424 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: #592

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.

Up

159.10avatars1.githubusercontent.com

Same first word

10avatars1.githubusercontent.com

DNS History

4 records (4 active, 0 former)

●A185.199.108.1332026-02-16 → 2026-02-25 · 2 obs

● 2026-02-16 05:53:00
● 2026-02-25 10:38:22

●A185.199.109.1332026-02-16 → 2026-02-25 · 2 obs

● 2026-02-16 05:53:00
● 2026-02-25 10:38:22

●A185.199.110.1332026-02-16 → 2026-02-25 · 2 obs

● 2026-02-16 05:53:00
● 2026-02-25 10:38:22

●A185.199.111.1332026-02-16 → 2026-02-25 · 2 obs

● 2026-02-16 05:53:00
● 2026-02-25 10:38:22

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	m.gtld-servers.net, e.gtld-servers.net, l.gtld-servers.net, b.gtld-servers.net...	-
githubusercontent.com	ns-181.awsdns-22.com, ns-596.awsdns-10.net, ns-1867.awsdns-41.co.uk, ns-1411.awsdns-48.org...	1 record

✅ Authoritative Response

Server: 198.51.45.1

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: 228ms | Queries: -

📄 Records

Type	Count	Sample Data
A	4	`185.199.109.133, 185.199.110.133...`

📌 Glue Records Collected

Total: 1

Out-of-bailiwick: 1 (ns-181.awsdns-22.com)

AI analysis

10avatars1.githubusercontent.com is the parent of 159.10avatars1.githubusercontent.com.

10avatars1.githubusercontent.com resolves to four IPs: 185.199.108.133, 185.199.109.133, 185.199.110.133 and 185.199.111.133.

Other host names, for instance cloud.githubusercontent.com, 10.72.180.60raw.githubusercontent.com, 159.10avatars0.githubusercontent.com, 0-static3.statista.com.ksclib.githubusercontent.com and 17.githubusercontent.com share IP numbers with 10avatars1.githubusercontent.com.

10avatars1.githubusercontent.com - robtex.com