a0.dev - dns.ninja

`a0.dev`

DNSSEC	⚠️ Not signed
A	76.76.21.21^{🇺🇸 Amazon76.76.21.0/24 EC2 Prefix}
NS	`lamar.ns.cloudflare.com` ⭐
		A	2606:4700:58::a29f:2c8e^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`lamar.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c38e^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`lamar.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:238e^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`lamar.ns.cloudflare.com`
		A	108.162.195.142^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`lamar.ns.cloudflare.com`
		A	162.159.44.142^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`lamar.ns.cloudflare.com`
		A	172.64.35.142^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`lamar.ns.cloudflare.com`
NS	`zelda.ns.cloudflare.com`
		A	2606:4700:50::adf5:3af2^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`zelda.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0f2^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`zelda.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20f2^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`zelda.ns.cloudflare.com`
		A	108.162.192.242^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`zelda.ns.cloudflare.com`
		A	172.64.32.242^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`zelda.ns.cloudflare.com`
		A	173.245.58.242^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`zelda.ns.cloudflare.com`
MX	`smtp.google.com` ⭐
		A	2607:f8b0:4004:c08::1a^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`bi-in-f26.1e100.net`
		A	2607:f8b0:4004:c08::1b^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`bi-in-f27.1e100.net`
		A	2607:f8b0:4004:c0b::1b^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`bj-in-f27.1e100.net`
		A	2607:f8b0:4004:c19::1a^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`bk-in-f26.1e100.net`
		A	142.250.31.27^{🇺🇸 Google142.250.31.0/24}
			PTR	`bj-in-f27.1e100.net`
		A	142.251.111.26^{🇺🇸 Google142.251.111.0/24}
			PTR	`bk-in-f26.1e100.net`
		A	142.251.111.27^{🇺🇸 Google142.251.111.0/24}
			PTR	`bk-in-f27.1e100.net`
		A	172.253.63.26^{🇺🇸 Google172.253.63.0/24}
			PTR	`bi-in-f26.1e100.net`
		A	172.253.63.27^{🇺🇸 Google172.253.63.0/24}
			PTR	`bi-in-f27.1e100.net`
TXT	`brevo-code:656e8ec7eada5c3d03bd313c938a68cf`
TXT	`google-site-verification=u_yEUIA9eGBD-Hk0eedUdF7TX3ZZ1T1LvjIRDqU1QGw`
TXT	`google-site-verification=vXA7TNk8fP5GTbVPd2-m_Mtgr3KoejS4S2HWL5nzl5A`
TXT	`v=spf1 include:spf.efwd.registrar-servers.com ~all`
SOA	`lamar.ns.cloudflare.com`dns@cloudflare.com serial=2406544352

`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 #680065 globally
rank #587 in the tld
🔒 HSTS Preload (+subdomains)

Same first word

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a0.com.cn

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Similar names

0a.dk

0a.su

0a.cn

0a.eu

0a.io

0a.rip

0a.ca

0a.tel

0a.pl

0a.fr

0a.cz

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0a.fi

0a.ru

0a.at

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0a.design

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0a.ph

0a.no

0a.co

DNS History

4 records (4 active, 0 former)

●NSlamar.ns.cloudflare.com2026-02-19 → 2026-06-14 · 2 obs

● 2026-02-19 06:55:42
● 2026-06-14 04:19:20

●NSzelda.ns.cloudflare.com2026-02-19 → 2026-06-14 · 2 obs

● 2026-02-19 06:55:42
● 2026-06-14 04:19:20

●MXsmtp.google.com2026-02-19 → 2026-06-14 · 2 obs

● 2026-02-19 06:55:42
● 2026-06-14 04:19:20

●A76.76.21.212026-02-19 → 2026-06-14 · 2 obs

● 2026-02-19 06:55:42
● 2026-06-14 04:19:20

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
dev	ns-tld4.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com, ns-tld5.charlestonroadregistry.com, ns-tld1.charlestonroadregistry.com...	-
a0.dev	lamar.ns.cloudflare.com, zelda.ns.cloudflare.com	-

✅ Authoritative Response

Server:173.245.58.242

NS records: lamar.ns.cloudflare.com, zelda.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for a0.dev (unsigned zone)

⏱️ Timing

Total: 2233ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`76.76.21.21`
NS	2	`lamar.ns.cloudflare.com, zelda.ns.cloudflare.com`
MX	1	`smtp.google.com (pri: 1)`
TXT	4	`brevo-code:656e8ec7eada5c3d03bd313c938a6, google-site-verification=u_yEUIA9eGBD-Hk...`
SOA	1	`lamar.ns.cloudflare.com dns.cloudflare.c`

Analysis

IP Addresses

a0.dev resolves to just one IP address, 76.76.21.21.

Two other host names, along with refpa815757.top, aspria.com and twc.church, also share IP numbers with a0.dev.

Name Servers

a0.dev uses two name servers for its delegation: lamar.ns.cloudflare.com and zelda.ns.cloudflare.com.

a0.dev uses the same name servers as 32348937.workers.dev, galaxyzent.com and mendeleev.cn, among others.

a0.dev has at least partial name server overlap with other domains, such as aruqlumiugilo.com, netci.net, dahanren.com and two others.

It is common to find these name servers paired with the name servers daniella.ns.cloudflare.com, phoenix.ns.cloudflare.com, adam.ns.cloudflare.com and kenia.ns.cloudflare.com.

DNS names with 6 IP addresses:

Hostname lamar.ns.cloudflare.com directs to 108.162.195.142, 162.159.44.142 and 172.64.35.142 along with 3 other IP addresses.

Hostname zelda.ns.cloudflare.com directs to 108.162.192.242, 172.64.32.242 and 173.245.58.242 along with 3 other IP addresses.

Mail Servers

The sole mail server for a0.dev is smtp.google.com.

Among the domains sharing a mail server setup with a0.dev are delphincapital.com, modeldd.com, nbcloud.io and two others.

There is at least a partial MX overlap between a0.dev and other domains, including bamhotels.com, vroong.com, mahedan.com and two others.

With 9 IP addresses total, smtp.google.com resolves to 142.250.31.27, 142.251.111.26, 142.251.111.27 and 6 others.