`is-a.dev`

DNSSEC	⚠️ Not signed
A	2606:4700::6812:467^{🇺🇸 Cloudflare2606:4700::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700::6812:567^{🇺🇸 Cloudflare2606:4700::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.18.4.103^{Cloudflare104.18.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.18.5.103^{Cloudflare104.18.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`ns1.is-a.dev` ⭐
		A	2400:cb00:2049:1::a29f:1e8^{🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street}
		A	162.159.1.232^{Cloudflare162.159.1.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
NS	`ns2.is-a.dev`
		A	2400:cb00:2049:1::a29f:3e4^{🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street}
		A	162.159.3.228^{Cloudflare162.159.3.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
NS	`ns3.is-a.dev`
		A	2400:cb00:2049:1::a29f:4ed^{🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street}
		A	162.159.4.237^{Cloudflare162.159.4.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
NS	`ns4.is-a.dev`
		A	2400:cb00:2049:1::a29f:6f9^{🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street}
		A	162.159.6.249^{Cloudflare162.159.6.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
MX	`route1.mx.cloudflare.net` ⭐
		A	2606:4700:f5::b^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
		A	2606:4700:f5::c^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
		A	2606:4700:f5::d^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
		A	162.159.205.11^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
		A	162.159.205.12^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
		A	162.159.205.13^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
MX	`route3.mx.cloudflare.net`⁽³⁶⁾
		A	2606:4700:f5::11^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
		A	2606:4700:f5::12^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
		A	2606:4700:f5::13^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
		A	162.159.205.23^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
		A	162.159.205.24^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
		A	162.159.205.25^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
MX	`route2.mx.cloudflare.net`⁽⁶²⁾
		A	2606:4700:f5::e^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
		A	2606:4700:f5::f^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
		A	2606:4700:f5::10^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
		A	162.159.205.17^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
		A	162.159.205.18^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
		A	162.159.205.19^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
TXT	`v=spf1 include:_spf.mx.cloudflare.net ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.18.4.103, 104.18.5.103
		IPv6 hints	2606:4700::6812:467, 2606:4700::6812:567
SOA	`ns1.is-a.dev`dns@cloudflare.com serial=2405550205

`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

rank #117309 globally
rank #91 in the tld
📈 Tranco rank: #125,097
🔒 HSTS Preload (+subdomains)

Subdomains

ns4.is-a.dev

alvin.is-a.dev

8.is-a.dev

ns3.is-a.dev

ns1.is-a.dev

teknofestmagaza.is-a.dev

al-nahianhasan.is-a.dev

kappurumedia.is-a.dev

ns2.is-a.dev

null.is-a.dev

yxz.is-a.dev

aashutosh.is-a.dev

json.is-a.dev

devesh.is-a.dev

shockbs.is-a.dev

Same first word

is-a.top

is-a.software

is-a.name

is-a.org

is-a.cat

is-a.com

is-a.lol

is-a.dev

is-a.de

is-a.pk

is-a.no

is-a.pro

is-a.horse

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DNS History

11 records (11 active, 0 former)

●NSns1.is-a.dev2026-02-14 → 2026-05-29 · 2 obs

● 2026-02-14 22:57:36
● 2026-05-29 18:32:46

●NSns2.is-a.dev2026-02-14 → 2026-05-29 · 2 obs

● 2026-02-14 22:57:36
● 2026-05-29 18:32:46

●NSns3.is-a.dev2026-02-14 → 2026-05-29 · 2 obs

● 2026-02-14 22:57:36
● 2026-05-29 18:32:46

●NSns4.is-a.dev2026-02-14 → 2026-05-29 · 2 obs

● 2026-02-14 22:57:36
● 2026-05-29 18:32:46

●MXroute1.mx.cloudflare.net2026-02-14 → 2026-05-29 · 2 obs

● 2026-02-14 22:57:36
● 2026-05-29 18:32:46

●MXroute2.mx.cloudflare.net2026-02-14 → 2026-05-29 · 2 obs

● 2026-02-14 22:57:36
● 2026-05-29 18:32:46

●MXroute3.mx.cloudflare.net2026-02-14 → 2026-05-29 · 2 obs

● 2026-02-14 22:57:36
● 2026-05-29 18:32:46

●A104.18.4.1032026-02-14 → 2026-05-29 · 2 obs

● 2026-02-14 22:57:36
● 2026-05-29 18:32:46

●A104.18.5.1032026-02-14 → 2026-05-29 · 2 obs

● 2026-02-14 22:57:36
● 2026-05-29 18:32:46

●A2606:4700::6812:4672026-02-14 → 2026-05-29 · 2 obs

● 2026-02-14 22:57:36
● 2026-05-29 18:32:46

●A2606:4700::6812:5672026-02-14 → 2026-05-29 · 2 obs

● 2026-02-14 22:57:36
● 2026-05-29 18:32:46

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
dev	ns-tld1.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com, ns-tld3.charlestonroadregistry.com, ns-tld4.charlestonroadregistry.com...	-
is-a.dev	ns1.is-a.dev, ns2.is-a.dev, ns4.is-a.dev, ns3.is-a.dev	8 records

✅ Authoritative Response

Server:162.159.4.237

NS records: ns1.is-a.dev, ns2.is-a.dev, ns4.is-a.dev, ns3.is-a.dev

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 616ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.18.4.103, 104.18.5.103`
AAAA	2	`2606:4700::6812:467, 2606:4700::6812:567`
NS	4	`ns1.is-a.dev, ns2.is-a.dev...`
MX	3	`route1.mx.cloudflare.net (pri: 34), route3.mx.cloudflare.net (pri: 36)...`
TXT	1	`v=spf1 include:_spf.mx.cloudflare.net ~a`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`ns1.is-a.dev dns.cloudflare.com`

📌 Glue Records Collected

Total: 8

In-bailiwick: 8 (ns2.is-a.dev, ns2.is-a.dev, ns1.is-a.dev...)

Analysis

Hierarchy

is-a.dev is the parent domain of ns4.is-a.dev, alvin.is-a.dev, 8.is-a.dev, ns3.is-a.dev, ns1.is-a.dev and a few other host names.

IP Addresses

is-a.dev maps to 4 IP numbers, specifically 104.18.4.103, 104.18.5.103, 2606:4700::6812:467 and 2606:4700::6812:567.

Two other host names, along with 66zz3.com, shockbs.is-a.dev and ecmtransport.com, also share IP numbers with is-a.dev.

Name Servers

is-a.dev is delegated to 4 name servers: ns1.is-a.dev, ns2.is-a.dev, ns3.is-a.dev and ns4.is-a.dev.

The host names ns1.is-a.dev, ns2.is-a.dev, ns3.is-a.dev and ns4.is-a.dev each resolve to two IP addresses: ns1.is-a.dev resolves to 162.159.1.232 and 2400:cb00:2049:1::a29f:1e8; ns2.is-a.dev resolves to 162.159.3.228 and 2400:cb00:2049:1::a29f:3e4; ns3.is-a.dev resolves to 162.159.4.237 and 2400:cb00:2049:1::a29f:4ed; ns4.is-a.dev resolves to 162.159.6.249 and 2400:cb00:2049:1::a29f:6f9.

Mail Servers

is-a.dev is handled by three mail servers: route1.mx.cloudflare.net, route2.mx.cloudflare.net and route3.mx.cloudflare.net.

There is at least a partial MX overlap between is-a.dev and other domains, including flu(0x706f726e).com, gardendesignershertfordshire.co.uk, woodlynpartners.com and two others.

DNS names with 6 IP addresses:

route1.mx.cloudflare.net points to 162.159.205.11, 162.159.205.12, 162.159.205.13 and three other IP addresses.

route2.mx.cloudflare.net points to 162.159.205.17, 162.159.205.18, 162.159.205.19 and three other IP addresses.

route3.mx.cloudflare.net points to 162.159.205.23, 162.159.205.24, 162.159.205.25 and three other IP addresses.

is-a.dev - robtex.com

is-a.dev

dev

Subdomains

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

Hierarchy

IP Addresses

Name Servers

Mail Servers

`is-a.dev`

`dev`