a2b.dev - dns.ninja

`a2b.dev`

DNSSEC	⚠️ Not signed
NS	`arch.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b44^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`arch.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c144^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`arch.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2144^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`arch.ns.cloudflare.com`
		A	108.162.193.68^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`arch.ns.cloudflare.com`
		A	172.64.33.68^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`arch.ns.cloudflare.com`
		A	173.245.59.68^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`arch.ns.cloudflare.com`
NS	`dana.ns.cloudflare.com`
		A	2606:4700:50::adf5:3a69^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dana.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c069^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`dana.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2069^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`dana.ns.cloudflare.com`
		A	108.162.192.105^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dana.ns.cloudflare.com`
		A	172.64.32.105^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dana.ns.cloudflare.com`
		A	173.245.58.105^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dana.ns.cloudflare.com`
MX	`route3.mx.cloudflare.net` ⭐
		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`⁽⁵⁵⁾
		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`
MX	`route1.mx.cloudflare.net`⁽⁹⁹⁾
		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`
TXT	`v=spf1 include:_spf.mx.cloudflare.net ~all`
SOA	`arch.ns.cloudflare.com`dns@cloudflare.com serial=2405447973

`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)

Subdomains

mailcop.a2b.dev

Same first word

a2b.bike

a2b.nl

a2b.gr

a2b.ie

a2b.network

a2b.hr

a2b.com.au

a2b.im

a2b.jp

a2b.at

a2b.ac.id

a2b.ba

a2b.enterprises

a2b.biz

a2b.su

a2b.nu

a2b.limo

a2b.consulting

a2b.dk

a2b.be

a2b.vn

a2b.lv

a2b.help

a2b.es

a2b.graphics

a2b.ru

a2b.church

a2b.se

a2b.eu

a2b.direct

a2b.lt

a2b.in

a2b.cc

a2b.me

a2b.org.cn

a2b.de

a2b.ng

a2b.srl

a2b.today

a2b.tn

a2b.pw

a2b.fi

a2b.org.uk

a2b.net.au

a2b.co.jp

a2b.co.nz

a2b.com

a2b.us

a2b.net

a2b.org.au

a2b.ph

a2b.sk

a2b.it

a2b.world

a2b.dev

a2b.site

Similar names

2ba.by

ab2.de

2ab.me

2ab.pt

2ba.org

b2a.cn

b2a.cz

2ab.cn

b2a.ca

2ab.com.br

ab2.org

b2a.kz

ab2.com

ab2.co.uk

2ab.nl

ab2.es

b2a.jp

ba2.cc

2ab.fr

2ba.net

ba2.org

b2a.ch

ab2.in

b2a.me

b2a.net

b2a.ru

2ba.ru

2ab.eu

b2a.org

b2a.us

ba2.dk

2ba.cc

2ba.de

ba2.me

b2a.de

ab2.be

ab2.fr

b2a.hk

b2a.info

b2a.online

b2a.co

b2a.it

2ba.fr

b2a.top

ab2.life

b2a.eu

ab2.tech

ba2.cn

ab2.me

ab2.ru

ab2.net

2ba.su

2ab.org

ab2.agency

ab2.co

ab2.it

b2a.be

2ab.com

ba2.com

b2a.at

2ba.com

b2a.com

ba2.co

2ba.co

2ba.com.mx

DNS History

5 records (5 active, 0 former)

●NSarch.ns.cloudflare.com2026-03-19 → 2026-06-25 · 2 obs

● 2026-03-19 01:12:12
● 2026-06-25 18:19:24

●NSdana.ns.cloudflare.com2026-03-19 → 2026-06-25 · 2 obs

● 2026-03-19 01:12:12
● 2026-06-25 18:19:24

●MXroute1.mx.cloudflare.net2026-03-19 → 2026-06-25 · 2 obs

● 2026-03-19 01:12:12
● 2026-06-25 18:19:24

●MXroute2.mx.cloudflare.net2026-03-19 → 2026-06-25 · 2 obs

● 2026-03-19 01:12:12
● 2026-06-25 18:19:24

●MXroute3.mx.cloudflare.net2026-03-19 → 2026-06-25 · 2 obs

● 2026-03-19 01:12:12
● 2026-06-25 18:19:24

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
dev	ns-tld1.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com, ns-tld3.charlestonroadregistry.com, ns-tld4.charlestonroadregistry.com...	-
a2b.dev	arch.ns.cloudflare.com, dana.ns.cloudflare.com	-

✅ Authoritative Response

Server:173.245.58.105

NS records: arch.ns.cloudflare.com, dana.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for a2b.dev (unsigned zone)

⏱️ Timing

Total: 452ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`arch.ns.cloudflare.com, dana.ns.cloudflare.com`
MX	3	`route3.mx.cloudflare.net (pri: 11), route2.mx.cloudflare.net (pri: 55)...`
TXT	1	`v=spf1 include:_spf.mx.cloudflare.net ~a`
SOA	1	`arch.ns.cloudflare.com dns.cloudflare.co`

Analysis

Hierarchy

The domain mailcop.a2b.dev falls under the parent a2b.dev.

Name Servers

Two name servers handle the delegation for a2b.dev: arch.ns.cloudflare.com and dana.ns.cloudflare.com.

a2b.dev uses the same name servers as several other domains — among them alanmaccormack.com, babar.im, caplabs.com and two more.

At least some of a2b.dev's name servers are shared with other domains, for example taurys.ru, wynoralispeq.com, k00111.com and two more.

It is common for these name servers to be used in conjunction with the name servers adel.ns.cloudflare.com, dave.ns.cloudflare.com and mckinley.ns.cloudflare.com.

Hostnames that resolve to 6 IP addresses:

arch.ns.cloudflare.com resolves to 108.162.193.68, 172.64.33.68 and 173.245.59.68 among others, with 3 other IP addresses in total.

dana.ns.cloudflare.com resolves to 108.162.192.105, 172.64.32.105 and 173.245.58.105 among others, with 3 other IP addresses in total.

Mail Servers

The MX records for a2b.dev list three mail servers: route1.mx.cloudflare.net, route2.mx.cloudflare.net and route3.mx.cloudflare.net.

a2b.dev has at least partial mail server overlap with other domains such as arta-ceramica.ro, umwkendarikadia.ac.id, meldrumsonthemove.com and two more.

Hostnames that resolve to 6 IP addresses:

route1.mx.cloudflare.net resolves to 162.159.205.11, 162.159.205.12 and 162.159.205.13 among others, with 3 other IP addresses in total.

route2.mx.cloudflare.net resolves to 162.159.205.17, 162.159.205.18 and 162.159.205.19 among others, with 3 other IP addresses in total.

route3.mx.cloudflare.net resolves to 162.159.205.23, 162.159.205.24 and 162.159.205.25 among others, with 3 other IP addresses in total.