b4a.dev - dns.ninja

`b4a.dev`

DNSSEC	⚠️ Not signed
A	2606:4700:3030::ac43:cea9^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3034::6815:5590^{🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.85.144^{Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.206.169^{🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`albert.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b3a^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`albert.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c13a^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`albert.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:213a^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`albert.ns.cloudflare.com`
		A	108.162.193.58^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`albert.ns.cloudflare.com`
		A	172.64.33.58^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`albert.ns.cloudflare.com`
		A	173.245.59.58^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`albert.ns.cloudflare.com`
NS	`tegan.ns.cloudflare.com`
		A	2606:4700:50::adf5:3ae2^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`tegan.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0e2^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`tegan.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20e2^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`tegan.ns.cloudflare.com`
		A	108.162.192.226^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`tegan.ns.cloudflare.com`
		A	172.64.32.226^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`tegan.ns.cloudflare.com`
		A	173.245.58.226^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`tegan.ns.cloudflare.com`
MX	`route2.mx.cloudflare.net` ⭐
		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`⁽⁵⁴⁾
		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`⁽⁶¹⁾
		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`
TXT	`v=spf1 include:_spf.mx.cloudflare.net ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.85.144, 172.67.206.169
		IPv6 hints	2606:4700:3030::ac43:cea9, 2606:4700:3034::6815:5590
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=62, name=cloudflare-ech.com
SOA	`albert.ns.cloudflare.com`dns@cloudflare.com serial=2410055304

`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

ca.b4a.dev

Same first word

b4a.nl

b4a.online

b4a.dev

b4a.ru

b4a.systems

b4a.de

b4a.se

b4a.ir

b4a.link

b4a.io

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b4a.run

b4a.org

b4a.ai

b4a.clinic

b4a.pt

b4a.eu

b4a.app

b4a.com

Similar names

ba4.ru

ab4.net

ba4.be

ab4.pt

a4b.dk

ab4.es

a4b.jp

ab4.de

a4b.pl

a4b.com.ua

ab4.hu

a4b.vn

a4b.io

4ab.me

4ab.nl

4ba.biz

4ba.de

a4b.co

ab4.it

a4b.com.vn

a4b.us-east-1.amazonaws.com

4ba.ru

4ab.eu

4ab.pl

4ab.cn

4ba.at

4ab.us

4ab.de

ba4.in

ba4.cn

4ab.com

a4b.gr

ab4.org

4ba.net

4ba.cn

ab4.systems

a4b.eu

a4b.nu

a4b.com.br

a4b.be

a4b.de

a4b.at

ba4.org

a4b.sk

4ab.ru

4ab.co

4ab.ir

a4b.cn

a4b.ai

ab4.com

4ba.org

4ba.ai

a4b.info

ba4.de

a4b.com.au

ba4.com

ab4.ru

a4b.com.mx

a4b.com

ab4.online

ab4.us

a4b.it

a4b.ru

4ab.net

a4b.net

4ab.in

a4b.org

ab4.jp

a4b.biz

4ab.ca

ba4.net

4ba.eu

DNS History

9 records (9 active, 0 former)

●NSalbert.ns.cloudflare.com2026-07-09 → 2026-07-23 · 2 obs

● 2026-07-09 01:09:32
● 2026-07-23 17:41:08

●NStegan.ns.cloudflare.com2026-07-09 → 2026-07-23 · 2 obs

● 2026-07-09 01:09:32
● 2026-07-23 17:41:08

●MXroute1.mx.cloudflare.net2026-07-09 → 2026-07-23 · 2 obs

● 2026-07-09 01:09:32
● 2026-07-23 17:41:08

●MXroute2.mx.cloudflare.net2026-07-09 → 2026-07-23 · 2 obs

● 2026-07-09 01:09:32
● 2026-07-23 17:41:08

●MXroute3.mx.cloudflare.net2026-07-09 → 2026-07-23 · 2 obs

● 2026-07-09 01:09:32
● 2026-07-23 17:41:08

●A104.21.85.1442026-07-09 → 2026-07-23 · 2 obs

● 2026-07-09 01:09:32
● 2026-07-23 17:41:08

●A172.67.206.1692026-07-09 → 2026-07-23 · 2 obs

● 2026-07-09 01:09:32
● 2026-07-23 17:41:08

●A2606:4700:3030::ac43:cea92026-07-09 → 2026-07-23 · 2 obs

● 2026-07-09 01:09:32
● 2026-07-23 17:41:08

●A2606:4700:3034::6815:55902026-07-09 → 2026-07-23 · 2 obs

● 2026-07-09 01:09:32
● 2026-07-23 17:41:08

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
dev	ns-tld1.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com, ns-tld3.charlestonroadregistry.com, ns-tld4.charlestonroadregistry.com...	-
b4a.dev	albert.ns.cloudflare.com, tegan.ns.cloudflare.com	-

✅ Authoritative Response

Server:172.64.33.58

NS records: albert.ns.cloudflare.com, tegan.ns.cloudflare.com

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 1615ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.85.144, 172.67.206.169`
AAAA	2	`2606:4700:3030::ac43:cea9, 2606:4700:3034::6815:5590`
NS	2	`albert.ns.cloudflare.com, tegan.ns.cloudflare.com`
MX	3	`route2.mx.cloudflare.net (pri: 50), route1.mx.cloudflare.net (pri: 54)...`
TXT	1	`v=spf1 include:_spf.mx.cloudflare.net ~a`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`albert.ns.cloudflare.com dns.cloudflare.`

Analysis

Hierarchy

ca.b4a.dev is delegated beneath b4a.dev.

IP Addresses

b4a.dev points to the four IP addresses 104.21.85.144, 172.67.206.169, 2606:4700:3030::ac43:cea9 and 2606:4700:3034::6815:5590.

Among the host names that share IP numbers with b4a.dev are blogdeviagemeturismo.com.br, enefitgreen.se, uae-up.com and two others.

Name Servers

DNS delegation for b4a.dev points to two name servers: albert.ns.cloudflare.com and tegan.ns.cloudflare.com.

b4a.dev has the same name server delegation as a number of other domains, such as krasovsky.me, imedia.id, rallyrestoration.com and two more.

There is at least partial name server overlap between b4a.dev and other domains — lumeriqavast.com, polarised-archived.click, vincentsall.com and two more among them.

These name servers tend to appear in combination with the name servers mustafa.ns.cloudflare.com, marissa.ns.cloudflare.com, etta.ns.cloudflare.com and selah.ns.cloudflare.com.

Host names resolving to 6 IP numbers:

albert.ns.cloudflare.com has IP addresses 108.162.193.58, 172.64.33.58 and 173.245.59.58, plus 3 other.

tegan.ns.cloudflare.com has IP addresses 108.162.192.226, 172.64.32.226 and 173.245.58.226, plus 3 other.

Mail Servers

Incoming mail for b4a.dev is delivered via three mail servers: route1.mx.cloudflare.net, route2.mx.cloudflare.net and route3.mx.cloudflare.net.

b4a.dev shares at least some of its mail servers with other domains — for example bahmansaless.com, (0x706f726e)okz.com, uqbar.net and two more.

Host names resolving to 6 IP numbers:

route1.mx.cloudflare.net has IP addresses 162.159.205.11, 162.159.205.12 and 162.159.205.13, plus 3 other.

route2.mx.cloudflare.net has IP addresses 162.159.205.17, 162.159.205.18 and 162.159.205.19, plus 3 other.

route3.mx.cloudflare.net has IP addresses 162.159.205.23, 162.159.205.24 and 162.159.205.25, plus 3 other.