cdn.web.dev - dns.ninja

`cdn.web.dev`

CNAME	`www3.l.google.com`
DNSSEC	⚠️ Not signed
A	2a00:1450:4009:c17::66^{🇬🇧 Google2a00:1450:4009::/48}
		PTR	`sv-in-f102.1e100.net`
A	2a00:1450:4009:c17::71^{🇬🇧 Google2a00:1450:4009::/48}
A	2a00:1450:4009:c17::8a^{🇬🇧 Google2a00:1450:4009::/48}
A	2a00:1450:4009:c17::8b^{🇬🇧 Google2a00:1450:4009::/48}
A	142.251.30.100^{🇺🇸 Google142.251.30.0/24}
A	142.251.30.101^{🇺🇸 Google142.251.30.0/24}
A	142.251.30.102^{🇺🇸 Google142.251.30.0/24}
A	142.251.30.113^{🇺🇸 Google142.251.30.0/24}
A	142.251.30.138^{🇺🇸 Google142.251.30.0/24}
A	142.251.30.139^{🇺🇸 Google142.251.30.0/24}

`web.dev`

	DNSSEC	⚠️ Not signed
	A	2001:4860:4802:32::1b^{🇺🇸 Google2001:4860::/32}
	A	216.239.32.27^{🇺🇸 Google216.239.32.0/24}
	NS	`ns1.zdns.google` ⭐
	NS	`ns2.zdns.google`
	NS	`ns3.zdns.google`
	NS	`ns4.zdns.google`
	TXT	`google-site-verification=1KUpoM0U9uMGLkzIL1CaCnZDapQByrD74Wr92wrYZdA`
	SOA	`ns1.zdns.google`cloud-dns-hostmaster@google.com serial=1

WOT: SAFE (62/100)
rank #561 globally
rank #2 in the tld

web.dev

web.dev is a resource website run by Google that publishes guidance, tutorials, and tools to help developers build high-quality, modern web experiences. It covers topics such as performance, accessibility, best practices, and Core Web Vitals.

Key facts

Owner / operator: Google
TLD:.dev— gTLD (Google-operated, requires HTTPS/HSTS preload)
Primary purpose: developer education and web best-practices resource, including guides and the Lighthouse/PageSpeed-related content
Status: active

Related domains

developers.google.com— Google's broader developer documentation hub
pagespeed.web.dev— hosts PageSpeed Insights-related tooling under the web.dev domain

WOT: SAFE (70/100)
📈 Tranco rank: #2,437

Subdomains

upstream.cdn.web.dev

Same first word

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DNS History

1 record (1 active, 0 former)

●CNAMEwww3.l.google.com2026-05-09 → 2026-07-23 · 2 obs

● 2026-05-09 19:27:08
● 2026-07-23 17:47:12

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
dev	ns-tld1.charlestonroadregistry.com, ns-tld3.charlestonroadregistry.com, ns-tld5.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com...	10 records
web.dev	ns3.zdns.google, ns1.zdns.google, ns4.zdns.google, ns2.zdns.google	-

✅ Authoritative Response

Server:216.239.32.114

NS records: ns3.zdns.google, ns1.zdns.google, ns4.zdns.google, ns2.zdns.google

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for web.dev (unsigned zone)

⏱️ Timing

Total: 2365ms | Queries: -

📄 Records

Type	Count	Sample Data
CNAME	1	`www3.l.google.com`

📌 Glue Records Collected

Total: 10

Out-of-bailiwick: 10 (ns-tld1.charlestonroadregistry.com, ns-tld1.charlestonroadregistry.com, ns-tld3.charlestonroadregistry.com...)

Analysis

Hierarchy

cdn.web.dev is the parent zone for upstream.cdn.web.dev.

IP Addresses

cdn.web.dev points to 10 IP addresses, including 142.251.30.100, 142.251.30.101 and 142.251.30.102, plus 7 other.