specification.dev - dns.ninja

🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`specification.dev`

DNSSEC	⚠️ Not signed
A	2606:4700:3035::6815:3c2b^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3036::ac43:bf75^{🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.60.43^{Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.191.117^{🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`matt.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b83^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`matt.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c183^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`matt.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2183^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`matt.ns.cloudflare.com`
		A	108.162.193.131^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`matt.ns.cloudflare.com`
		A	172.64.33.131^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`matt.ns.cloudflare.com`
		A	173.245.59.131^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`matt.ns.cloudflare.com`
NS	`ziggy.ns.cloudflare.com`
		A	2606:4700:50::a29f:26ed^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ziggy.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c2ed^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`ziggy.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:22ed^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`ziggy.ns.cloudflare.com`
		A	108.162.194.237^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ziggy.ns.cloudflare.com`
		A	162.159.38.237^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ziggy.ns.cloudflare.com`
		A	172.64.34.237^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ziggy.ns.cloudflare.com`
MX	`smtp.google.com` ⭐
		A	2607:f8b0:4004:c29::1a^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`yuiadum-in-f26.1e100.net`
		A	2607:f8b0:4004:c29::1b^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`yuiadum-in-f27.1e100.net`
		A	2607:f8b0:4004:c2d::1a^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`ry-in-f26.1e100.net`
		A	2607:f8b0:4004:c2d::1b^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`ry-in-f27.1e100.net`
		A	173.194.45.26^{🇺🇸 Google173.194.0.0/16}
			PTR	`yuiadum-in-f26.1e100.net`
		A	173.194.45.27^{🇺🇸 Google173.194.0.0/16}
			PTR	`yuiadum-in-f27.1e100.net`
		A	192.179.18.26^{🇺🇸 Google192.178.0.0/15}
			PTR	`ry-in-f26.1e100.net`
		A	192.179.18.27^{🇺🇸 Google192.178.0.0/15}
			PTR	`ry-in-f27.1e100.net`
		A	192.179.24.27^{🇺🇸 Google192.178.0.0/15}
			PTR	`rz-in-f27.1e100.net`
TXT	`google-site-verification=UKT_rk056aDxHZeRDZaM45l14OHg3D0cfYvcOMU1h5M`
TXT	`v=spf1 include:_spf.google.com ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.60.43, 172.67.191.117
		IPv6 hints	2606:4700:3035::6815:3c2b, 2606:4700:3036::ac43:bf75
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=140, name=cloudflare-ech.com
SOA	`matt.ns.cloudflare.com`dns@cloudflare.com serial=2415149876

`dev`

	DNSSEC	🔒 Signed (DS record present)
	NS	`ns-tld1.charlestonroadregistry.com` ⭐
	NS	`ns-tld2.charlestonroadregistry.com`
	NS	`ns-tld3.charlestonroadregistry.com`
	NS	`ns-tld4.charlestonroadregistry.com`
	NS	`ns-tld5.charlestonroadregistry.com`
	SOA	`ns-tld1.charlestonroadregistry.com`cloud-dns-hostmaster@google.com serial=1

🔒 HSTS Preload (+subdomains)

Same first word

Similar names

specificaiton.ph

scientificoap.com

Previous names

Next names

DNS History

7 records (7 active, 0 former)

●NSmatt.ns.cloudflare.com2026-08-19 → 2026-09-18 · 2 obs

● 2026-08-19 16:28:50
● 2026-09-18 09:32:26

●NSziggy.ns.cloudflare.com2026-08-19 → 2026-09-18 · 2 obs

● 2026-08-19 16:28:50
● 2026-09-18 09:32:26

●MXsmtp.google.com2026-08-21 → 2026-09-18 · 2 obs

● 2026-08-21 00:52:02
● 2026-09-18 09:32:26

●A104.21.60.432026-08-19 → 2026-09-18 · 4 obs

● 2026-08-19 16:28:50
○ 2026-08-23 19:47:14
● 2026-09-08 11:46:28
● 2026-09-18 09:32:26

●A172.67.191.1172026-08-19 → 2026-09-18 · 4 obs

● 2026-08-19 16:28:50
○ 2026-08-23 19:47:14
● 2026-09-08 11:46:28
● 2026-09-18 09:32:26

●A2606:4700:3035::6815:3c2b2026-08-19 → 2026-09-18 · 4 obs

● 2026-08-19 16:28:50
○ 2026-08-23 19:47:14
● 2026-09-08 11:46:28
● 2026-09-18 09:32:26

●A2606:4700:3036::ac43:bf752026-08-19 → 2026-09-18 · 4 obs

● 2026-08-19 16:28:50
○ 2026-08-23 19:47:14
● 2026-09-08 11:46:28
● 2026-09-18 09:32:26

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
dev	ns-tld1.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com, ns-tld3.charlestonroadregistry.com, ns-tld4.charlestonroadregistry.com...	-
specification.dev	ziggy.ns.cloudflare.com, matt.ns.cloudflare.com	-

✅ Authoritative Response

Server:172.64.33.131

NS records: ziggy.ns.cloudflare.com, matt.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for specification.dev (unsigned zone)

⏱️ Timing

Total: 2204ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.60.43, 172.67.191.117`
AAAA	2	`2606:4700:3036::ac43:bf75, 2606:4700:3035::6815:3c2b`
NS	2	`matt.ns.cloudflare.com, ziggy.ns.cloudflare.com`
MX	1	`smtp.google.com (pri: 1)`
TXT	2	`google-site-verification=UKT_rk056aDxHZe, v=spf1 include:_spf.google.com ~all`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`matt.ns.cloudflare.com dns.cloudflare.co`

Analysis

IP Addresses

specification.dev resolves to four IP addresses: 104.21.60.43, 172.67.191.117, 2606:4700:3035::6815:3c2b and 2606:4700:3036::ac43:bf75.

Two other host names, along with makivn0de.org, 312bet-pg3.sa.com and maha-heng3333.com, also share IP numbers with specification.dev.

Name Servers

DNS delegation for specification.dev points to two name servers: matt.ns.cloudflare.com and ziggy.ns.cloudflare.com.

specification.dev shares its NS records with other domains, for example rmraissamartins.com.br, usinaxavantes.com.br, zhaoqingyi.workers.dev and two others.

specification.dev shares at least some of its name servers with other domains, including sedona-shop.com, wegeme.website, hdss.ws and two others.

These name servers are frequently paired with the name servers ignat.ns.cloudflare.com, bonnie.ns.cloudflare.com and anita.ns.cloudflare.com.

DNS names with 6 IP addresses:

matt.ns.cloudflare.com has IP addresses 108.162.193.131, 172.64.33.131 and 173.245.59.131, plus 3 other.

ziggy.ns.cloudflare.com has IP addresses 108.162.194.237, 162.159.38.237 and 172.64.34.237, plus 3 other.

Mail Servers

The sole mail server for specification.dev is smtp.google.com.

Among the domains sharing a mail server setup with specification.dev are orcheoplanning.com, junipercreativestudios.com, learningallowed.org and two others.

There is at least a partial MX overlap between specification.dev and other domains, including exreed.co, fbcnick.org, ca-core.org and two others.

With 9 IP addresses total, smtp.google.com resolves to 173.194.45.26, 173.194.45.27, 192.179.18.26 and 6 others.