zero51.com - dns.ninja

`zero51.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3031::ac43:81de^{🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::6815:1c2^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.1.194^{Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.129.222^{🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`jim.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b7d^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jim.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c17d^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`jim.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:217d^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`jim.ns.cloudflare.com`
		A	108.162.193.125^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jim.ns.cloudflare.com`
		A	172.64.33.125^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jim.ns.cloudflare.com`
		A	173.245.59.125^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jim.ns.cloudflare.com`
NS	`kay.ns.cloudflare.com`
		A	2606:4700:50::adf5:3a7d^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kay.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c07d^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`kay.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:207d^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`kay.ns.cloudflare.com`
		A	108.162.192.125^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kay.ns.cloudflare.com`
		A	172.64.32.125^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kay.ns.cloudflare.com`
		A	173.245.58.125^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kay.ns.cloudflare.com`
MX	`aspmx.l.google.com` ⭐
		A	2607:f8b0:4004:c08::1b^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`bi-in-f27.1e100.net`
		A	172.253.115.27^{🇺🇸 Google172.253.115.0/24}
			PTR	`bg-in-f27.1e100.net`
MX	`alt1.aspmx.l.google.com`⁽²⁰⁾
		A	2800:3f0:4003:c0f::1b^{🇨🇱 Google2800:3f0:4003::/48}
		A	108.177.123.27^{🇺🇸 Google108.177.123.0/24}
			PTR	`lcscld-in-f27.1e100.net`
MX	`alt2.aspmx.l.google.com`⁽²⁰⁾
		A	2a00:1450:400b:c02::1b^{🇮🇪 Google2a00:1450:400b::/48}
			PTR	`dj-in-f27.1e100.net`
		A	172.253.116.27^{🇺🇸 Google172.253.116.0/24}
			PTR	`dj-in-f27.1e100.net`
MX	`aspmx2.googlemail.com`⁽³⁰⁾
		A	2800:3f0:4003:c0f::1b^{🇨🇱 Google2800:3f0:4003::/48}
		A	108.177.123.26^{🇺🇸 Google108.177.123.0/24}
			PTR	`lcscld-in-f26.1e100.net`
MX	`aspmx3.googlemail.com`⁽³⁰⁾
		A	2a00:1450:400b:c02::1b^{🇮🇪 Google2a00:1450:400b::/48}
			PTR	`dj-in-f27.1e100.net`
		A	172.253.116.27^{🇺🇸 Google172.253.116.0/24}
			PTR	`dj-in-f27.1e100.net`
MX	`aspmx4.googlemail.com`⁽³⁰⁾
		A	2a00:1450:4009:c0f::1b^{🇬🇧 Google2a00:1450:4009::/48}
			PTR	`yulhrs-in-f27.1e100.net`
		A	192.178.223.26^{🇺🇸 Google192.178.223.0/24}
			PTR	`yulhrs-in-f26.1e100.net`
MX	`aspmx5.googlemail.com`⁽³⁰⁾
		A	2a00:1450:400c:c23::1a^{🇧🇪 Google2a00:1450:400c::/48}
			PTR	`yubrupd-in-f26.1e100.net`
		A	172.253.157.27^{🇺🇸 Google172.253.0.0/16}
			PTR	`yubrupd-in-f27.1e100.net`
TXT	`v=spf1 a mx include:spf.mtasv.net ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.1.194, 172.67.129.222
		IPv6 hints	2606:4700:3031::ac43:81de, 2606:4700:3037::6815:1c2
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=128, name=cloudflare-ech.com
SOA	`jim.ns.cloudflare.com`dns@cloudflare.com serial=2409261437

`com`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.gtld-servers.net` ⭐
	NS	`b.gtld-servers.net`
	NS	`c.gtld-servers.net`
	NS	`d.gtld-servers.net`
	NS	`e.gtld-servers.net`
	NS	`f.gtld-servers.net`
	NS	`g.gtld-servers.net`
	NS	`h.gtld-servers.net`
	NS	`i.gtld-servers.net`
	NS	`j.gtld-servers.net`
	NS	`k.gtld-servers.net`
	NS	`l.gtld-servers.net`
	NS	`m.gtld-servers.net`
	SOA	`a.gtld-servers.net`nstld@verisign-grs.com serial=1785134592

Subdomains

hostmaster.zero51.com

www.zero51.com

Same first word

zero51.com

zero51.it

Similar names

51zero.org

15zero.it

15zero.com

DNS History

22 records (13 active, 9 former)

●NSjim.ns.cloudflare.com2026-03-09 → 2026-07-27 · 3 obs

○ 2017-05-14 23:40:54
● 2026-03-09 04:34:58
● 2026-07-27 07:06:14

●NSkay.ns.cloudflare.com2026-03-09 → 2026-07-27 · 3 obs

○ 2017-05-14 23:40:54
● 2026-03-09 04:34:58
● 2026-07-27 07:06:14

○NSns1.enetica.com.au2015-08-06 → 2017-05-14 · 4 obs

● 2015-08-06 01:10:10
● 2017-05-14 23:40:54
○ 2026-03-09 04:34:58
○ 2026-07-27 07:06:14

○NSns2.enetica.com.au2015-08-06 → 2017-05-14 · 4 obs

● 2015-08-06 01:10:10
● 2017-05-14 23:40:54
○ 2026-03-09 04:34:58
○ 2026-07-27 07:06:14

●MXalt1.aspmx.l.google.com2015-08-06 → 2026-07-27 · 2 obs

● 2015-08-06 01:10:10
● 2026-07-27 07:06:14

●MXalt2.aspmx.l.google.com2015-08-06 → 2026-07-27 · 2 obs

● 2015-08-06 01:10:10
● 2026-07-27 07:06:14

●MXaspmx.l.google.com2015-08-06 → 2026-07-27 · 2 obs

● 2015-08-06 01:10:10
● 2026-07-27 07:06:14

●MXaspmx2.googlemail.com2015-08-06 → 2026-07-27 · 2 obs

● 2015-08-06 01:10:10
● 2026-07-27 07:06:14

●MXaspmx3.googlemail.com2015-08-06 → 2026-07-27 · 2 obs

● 2015-08-06 01:10:10
● 2026-07-27 07:06:14

●MXaspmx4.googlemail.com2015-08-06 → 2026-07-27 · 2 obs

● 2015-08-06 01:10:10
● 2026-07-27 07:06:14

●MXaspmx5.googlemail.com2015-08-06 → 2026-07-27 · 2 obs

● 2015-08-06 01:10:10
● 2026-07-27 07:06:14

○A104.131.134.792015-08-06 → 2017-05-14 · 4 obs

● 2015-08-06 01:10:10
● 2017-05-14 23:40:54
○ 2026-03-09 04:34:58
○ 2026-07-27 07:06:14

●A104.21.1.1942026-03-09 → 2026-07-27 · 11 obs

○ 2017-05-14 23:40:54
● 2026-03-09 04:34:58
● 2026-04-08 14:11:04
○ 2026-04-10 14:42:30
● 2026-04-13 06:11:22
● 2026-05-23 09:19:36
○ 2026-05-24 21:03:06
● 2026-05-29 07:54:40
○ 2026-06-10 14:02:22
● 2026-06-23 15:45:58
● 2026-07-27 07:06:14

●A172.67.129.2222026-03-09 → 2026-07-27 · 11 obs

○A188.114.96.02026-04-10 → 2026-06-10 · 10 obs

○ 2026-03-09 04:34:58
○ 2026-04-08 14:11:04
● 2026-04-10 14:42:30
○ 2026-04-13 06:11:22
○ 2026-05-23 09:19:36
● 2026-05-24 21:03:06
○ 2026-05-29 07:54:40
● 2026-06-10 14:02:22
○ 2026-06-23 15:45:58
○ 2026-07-27 07:06:14

○A188.114.97.02026-04-10 → 2026-06-10 · 10 obs

●A2606:4700:3031::ac43:81de2026-07-05 → 2026-07-27 · 3 obs

○ 2026-06-23 15:45:58
● 2026-07-05 09:13:12
● 2026-07-27 07:06:14

○A2606:4700:3036::6815:1c22026-03-09 → 2026-06-23 · 12 obs

●A2606:4700:3037::6815:1c22026-07-05 → 2026-07-27 · 3 obs

○ 2026-06-23 15:45:58
● 2026-07-05 09:13:12
● 2026-07-27 07:06:14

○A2606:4700:3037::ac43:81de2026-03-09 → 2026-06-23 · 12 obs

○A2a06:98c1:3120::2026-04-10 → 2026-06-10 · 10 obs

○A2a06:98c1:3121::2026-04-10 → 2026-06-10 · 10 obs

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	c.gtld-servers.net, g.gtld-servers.net, d.gtld-servers.net, b.gtld-servers.net...	-
zero51.com	jim.ns.cloudflare.com, kay.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.193.125

NS records: jim.ns.cloudflare.com, kay.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for zero51.com (unsigned zone)

⏱️ Timing

Total: 911ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.1.194, 172.67.129.222`
AAAA	2	`2606:4700:3037::6815:1c2, 2606:4700:3031::ac43:81de`
NS	2	`jim.ns.cloudflare.com, kay.ns.cloudflare.com`
MX	7	`aspmx.l.google.com (pri: 10), alt1.aspmx.l.google.com (pri: 20)...`
TXT	1	`v=spf1 a mx include:spf.mtasv.net ~all`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`jim.ns.cloudflare.com dns.cloudflare.com`

📌 Glue Records Collected

Total: 12

Out-of-bailiwick: 12 (jim.ns.cloudflare.com, jim.ns.cloudflare.com, jim.ns.cloudflare.com...)

Analysis

Hierarchy

hostmaster.zero51.com and www.zero51.com are both subdomains of zero51.com.

IP Addresses

zero51.com directs to four IP numbers, which are 104.21.1.194, 172.67.129.222, 2606:4700:3031::ac43:81de and 2606:4700:3037::6815:1c2.

sgw-online.com, mail.doubleclick-it.co.za, thebrainfund.org and two other host names share IP numbers with zero51.com.

Name Servers

zero51.com is served by two delegated name servers, jim.ns.cloudflare.com and kay.ns.cloudflare.com.

zero51.com uses the same name servers as several other domains — among them austhealth-cf-test.com, oleary.fr, loraincounty.org and two more.

At least some of zero51.com's name servers are shared with other domains, for example supervisedliving.com, onmac.net, online29.com and two more.

These name servers are often deployed together with the name servers lara.ns.cloudflare.com, yadiel.ns.cloudflare.com, trevor.ns.cloudflare.com and uma.ns.cloudflare.com.

Hostnames that resolve to 6 IP addresses:

jim.ns.cloudflare.com carries IP addresses 108.162.193.125, 172.64.33.125 and 173.245.59.125, with 3 other addresses beyond those.

kay.ns.cloudflare.com carries IP addresses 108.162.192.125, 172.64.32.125 and 173.245.58.125, with 3 other addresses beyond those.

Mail Servers

zero51.com uses 7 mail servers for delivery: aspmx2.googlemail.com, aspmx3.googlemail.com, aspmx4.googlemail.com and 4 other.

zero51.com has at least partial mail server overlap with other domains such as digitalo.de, metrobob.com, ns500759.ns500759.ns500759.ns500758.ns500759.ns500736.ns500698.ns500698.ns500698.ns500708.ns500576.ns500698.ns500698.ns500619.ns500686.ns500619.ns500619.trackreceptor.com and two more.

These mail servers commonly co-occur with mail servers aspmx.l.google.com, alt2.aspmx.l.google.com, alt1.aspmx.l.google.com and 3 others.

Hostnames that resolve to two IP addresses:

aspmx2.googlemail.com maps to two IP addresses — 108.177.123.26 and 2800:3f0:4003:c0f::1b.

aspmx3.googlemail.com maps to two IP addresses — 172.253.116.27 and 2a00:1450:400b:c02::1b.

aspmx4.googlemail.com maps to two IP addresses — 192.178.223.26 and 2a00:1450:4009:c0f::1b.

aspmx5.googlemail.com maps to two IP addresses — 172.253.157.27 and 2a00:1450:400c:c23::1a.

aspmx.l.google.com maps to two IP addresses — 172.253.115.27 and 2607:f8b0:4004:c08::1b.

alt1.aspmx.l.google.com maps to two IP addresses — 108.177.123.27 and 2800:3f0:4003:c0f::1b.

alt2.aspmx.l.google.com maps to two IP addresses — 172.253.116.27 and 2a00:1450:400b:c02::1b.

These two host names — aspmx2.googlemail.com and alt1.aspmx.l.google.com — each point to 2800:3f0:4003:c0f::1b IP addresses.

These two host names — aspmx3.googlemail.com and alt2.aspmx.l.google.com — each point to 2a00:1450:400b:c02::1b IP addresses.

These two host names — aspmx3.googlemail.com and alt2.aspmx.l.google.com — each point to 172.253.116.27 IP addresses.