🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`nullreference.io`

DNSSEC	⚠️ Not signed
NS	`chelsea.ns.cloudflare.com` ⭐
		A	2606:4700:50::a29f:26b1^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`chelsea.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c2b1^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`chelsea.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:22b1^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`chelsea.ns.cloudflare.com`
		A	108.162.194.177^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`chelsea.ns.cloudflare.com`
		A	162.159.38.177^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`chelsea.ns.cloudflare.com`
		A	172.64.34.177^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`chelsea.ns.cloudflare.com`
NS	`mark.ns.cloudflare.com`
		A	2606:4700:58::adf5:3b82^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`mark.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c182^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`mark.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2182^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`mark.ns.cloudflare.com`
		A	108.162.193.130^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`mark.ns.cloudflare.com`
		A	172.64.33.130^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`mark.ns.cloudflare.com`
		A	173.245.59.130^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`mark.ns.cloudflare.com`
MX	`aspmx.l.google.com` ⭐
		A	2607:f8b0:4004:c09::1a^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`bh-in-f26.1e100.net`
		A	172.253.139.26^{🇺🇸 Google172.253.139.0/24}
			PTR	`yuiadsk-in-f26.1e100.net`
MX	`alt1.aspmx.l.google.com`⁽⁵⁾
		A	2800:3f0:4003:c14::1b^{🇨🇱 Google2800:3f0:4003::/48}
		A	192.178.234.27^{🇺🇸 Google192.178.0.0/15}
			PTR	`ncsclj-in-f27.1e100.net`
MX	`alt2.aspmx.l.google.com`⁽⁵⁾
		A	2a00:1450:400b:c02::1a^{🇮🇪 Google2a00:1450:400b::/48}
			PTR	`dj-in-f26.1e100.net`
		A	172.253.116.27^{🇺🇸 Google172.253.116.0/24}
			PTR	`dj-in-f27.1e100.net`
MX	`alt3.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:4009:c0f::1a^{🇬🇧 Google2a00:1450:4009::/48}
			PTR	`yulhrs-in-f26.1e100.net`
		A	192.178.223.26^{🇺🇸 Google192.178.223.0/24}
			PTR	`yulhrs-in-f26.1e100.net`
MX	`alt4.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:400c:c23::1b^{🇧🇪 Google2a00:1450:400c::/48}
			PTR	`yubrupd-in-f27.1e100.net`
		A	172.253.157.26^{🇺🇸 Google172.253.0.0/16}
			PTR	`yubrupd-in-f26.1e100.net`
TXT	`anthropic-domain-verification-h83m2v=IvamPaHasw2njslW4lt1KiLZB`
TXT	`openai-domain-verification=dv-1uTjEkQuo1WpDl8mqrxTMzpN`
TXT	`openpgp4fpr:3E7FC018F20128F71EB148638A5D557A6FE47344`
TXT	`v=spf1 include:_spf.google.com ~all`
SOA	`chelsea.ns.cloudflare.com`dns@cloudflare.com serial=2413808361

`io`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a0.nic.io` ⭐
	NS	`a2.nic.io`
	NS	`b0.nic.io`
	NS	`c0.nic.io`
	SOA	`a0.nic.io`hostmaster@donuts.email serial=1788335081

Same first word

nullreference.nl

nullreference.net

nullreference.io

nullreference.org

nullreference.com

nullreference.dev

Previous names

nullis.io

nullisland.io

nullist.io

nullity.io

nulllab.io

nullmask.io

nullmesh.io

nullmode.io

nullnote.io

nullping.io

nullplatform.io

nullpoint.io

nullpointer.io

nullpointers.io

nullpointlabs.io

nullport.io

nullptr.io

nullpunkt.io

nullref.io

Next names

DNS History

7 records (7 active, 0 former)

●NSchelsea.ns.cloudflare.com2026-08-25 → 2026-09-02 · 2 obs

● 2026-08-25 10:09:52
● 2026-09-02 08:13:22

●NSmark.ns.cloudflare.com2026-08-25 → 2026-09-02 · 2 obs

● 2026-08-25 10:09:52
● 2026-09-02 08:13:22

●MXalt1.aspmx.l.google.com2026-08-25 → 2026-09-02 · 2 obs

● 2026-08-25 10:09:52
● 2026-09-02 08:13:22

●MXalt2.aspmx.l.google.com2026-08-25 → 2026-09-02 · 2 obs

● 2026-08-25 10:09:52
● 2026-09-02 08:13:22

●MXalt3.aspmx.l.google.com2026-08-25 → 2026-09-02 · 2 obs

● 2026-08-25 10:09:52
● 2026-09-02 08:13:22

●MXalt4.aspmx.l.google.com2026-08-25 → 2026-09-02 · 2 obs

● 2026-08-25 10:09:52
● 2026-09-02 08:13:22

●MXaspmx.l.google.com2026-08-25 → 2026-09-02 · 2 obs

● 2026-08-25 10:09:52
● 2026-09-02 08:13:22

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
io	c0.nic.io, a2.nic.io, a0.nic.io, b0.nic.io	-
nullreference.io	mark.ns.cloudflare.com, chelsea.ns.cloudflare.com	-

✅ Authoritative Response

Server:172.64.33.130

NS records: mark.ns.cloudflare.com, chelsea.ns.cloudflare.com

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 1263ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`chelsea.ns.cloudflare.com, mark.ns.cloudflare.com`
MX	5	`aspmx.l.google.com (pri: 1), alt3.aspmx.l.google.com (pri: 10)...`
TXT	4	`anthropic-domain-verification-h83m2v=Iva, openai-domain-verification=dv-1uTjEkQuo1...`
SOA	1	`chelsea.ns.cloudflare.com dns.cloudflare`

Analysis

Name Servers

Two name servers handle the delegation for nullreference.io: chelsea.ns.cloudflare.com and mark.ns.cloudflare.com.

nullreference.io shares its name server setup with other domains, including pojivejun.bond, prediksipttjitu.com, pedas024.pages.dev and two others.

The name servers of nullreference.io overlap at least partially with those of other domains — among them incom-tv.com, mojeebbaloch55.workers.dev, ilya-kovalenko92.workers.dev and two more.

These name servers commonly co-occur with the name servers dale.ns.cloudflare.com, liz.ns.cloudflare.com, val.ns.cloudflare.com and titan.ns.cloudflare.com.

Host names with 6 IP numbers:

chelsea.ns.cloudflare.com resolves to 108.162.194.177, 162.159.38.177 and 172.64.34.177 among others, with 3 other IP addresses in total.

mark.ns.cloudflare.com resolves to 108.162.193.130, 172.64.33.130 and 173.245.59.130 among others, with 3 other IP addresses in total.

Mail Servers

Five mail servers handle nullreference.io: aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com and two others.

nullreference.io shares mail servers — at least in part — with other domains, including mailmendcentralhub.com, thenorthernprepster.com, stdout.se and two others.

These mail servers are frequently paired with the mail servers alt3.aspmx.l.google.com, alt4.aspmx.l.google.com, aspmx2.googlemail.com and aspmx3.googlemail.com.

Host names with two IP numbers:

aspmx.l.google.com resolves to two addresses: 172.253.139.26 and 2607:f8b0:4004:c09::1a.

alt1.aspmx.l.google.com resolves to two addresses: 192.178.234.27 and 2800:3f0:4003:c14::1b.

alt2.aspmx.l.google.com resolves to two addresses: 172.253.116.27 and 2a00:1450:400b:c02::1a.

alt3.aspmx.l.google.com resolves to two addresses: 192.178.223.26 and 2a00:1450:4009:c0f::1a.

alt4.aspmx.l.google.com resolves to two addresses: 172.253.157.26 and 2a00:1450:400c:c23::1b.