cms-10.web.dev - dns.ninja

`cms-10.web.dev`

CNAME	`www3.l.google.com`
DNSSEC	⚠️ Not signed
A	2607:f8b0:4004:c19::65^{🇺🇸 Google2607:f8b0:4004::/48}
		PTR	`bk-in-f101.1e100.net`
A	2607:f8b0:4004:c19::66^{🇺🇸 Google2607:f8b0:4004::/48}
A	2607:f8b0:4004:c19::71^{🇺🇸 Google2607:f8b0:4004::/48}
A	2607:f8b0:4004:c19::8a^{🇺🇸 Google2607:f8b0:4004::/48}
A	142.251.111.100^{🇺🇸 Google142.251.111.0/24}
A	142.251.111.101^{🇺🇸 Google142.251.111.0/24}
A	142.251.111.102^{🇺🇸 Google142.251.111.0/24}
A	142.251.111.113^{🇺🇸 Google142.251.111.0/24}
A	142.251.111.138^{🇺🇸 Google142.251.111.0/24}
A	142.251.111.139^{🇺🇸 Google142.251.111.0/24}

`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

DNS History

1 record (1 active, 0 former)

●CNAMEwww3.l.google.com2026-06-04 → 2026-07-23 · 2 obs

● 2026-06-04 14:02:22
● 2026-07-23 14:30:08

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
dev	ns-tld1.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com, ns-tld3.charlestonroadregistry.com, ns-tld4.charlestonroadregistry.com...	-
web.dev	ns1.zdns.google, ns4.zdns.google, ns2.zdns.google, ns3.zdns.google	-

✅ Authoritative Response

Server:216.239.36.114

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for web.dev (unsigned zone)

⏱️ Timing

Total: 1794ms | Queries: -

📄 Records

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

Analysis

IP Addresses

cms-10.web.dev directs to 10 IP numbers: 142.251.111.100, 142.251.111.101, 142.251.111.102 and 7 other.

Two other host names, along with o-o.preferred.lax02s05.v15.lscache8.c.youtube.com, o-o.preferred.sn-o097zne7.v19.cache.c.googlesyndication.com and o-o.preferred.cbf01t01.v6.cache7.c.youtube.com, also share IP numbers with cms-10.web.dev.