`rulebase.co`

DNSSEC	⚠️ Not signed
A	2606:4700:3032::6815:57bf^{🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3036::ac43:91b2^{🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.87.191^{Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.145.178^{🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`lana.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3ab6^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`lana.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0b6^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`lana.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20b6^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`lana.ns.cloudflare.com`
		A	108.162.192.182^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
		A	172.64.32.182^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
		A	173.245.58.182^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
NS	`ruben.ns.cloudflare.com`
		A	2606:4700:58::a29f:2c47^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ruben.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c347^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`ruben.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2347^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`ruben.ns.cloudflare.com`
		A	108.162.195.71^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ruben.ns.cloudflare.com`
		A	162.159.44.71^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ruben.ns.cloudflare.com`
		A	172.64.35.71^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ruben.ns.cloudflare.com`
MX	`aspmx.l.google.com` ⭐
		A	2607:f8b0:4004:c27::1b^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`yuiadsk-in-f27.1e100.net`
		A	192.178.155.26^{🇺🇸 Google192.178.155.0/24}
			PTR	`yuiadrs-in-f26.1e100.net`
MX	`alt1.aspmx.l.google.com`⁽⁵⁾
		A	2800:3f0:4003:c0f::1a^{🇨🇱 Google2800:3f0:4003::/48}
		A	108.177.123.26^{🇺🇸 Google108.177.123.0/24}
			PTR	`lcscld-in-f26.1e100.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	172.253.116.26^{🇺🇸 Google172.253.116.0/24}
			PTR	`dj-in-f26.1e100.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	`MS=ms67945454`
TXT	`MS=ms84686370`
TXT	`MS=ms96082151`
TXT	`google-site-verification=FveIMLo1orAmpfSk2noMtvxJZFNZHN0v1LurFSF9uzE`
TXT	`google-site-verification=ZJvDe4PH3k8fk6MOVgWDhVts1nvpTOPTnOpOeoFZy-g`
TXT	`google-site-verification=_wwreMeTvtWPNEUMQYoG-0DpZYIIOmnH8XEnlVLb0J8`
TXT	`oneleet-domain-verification-2486e978-3271-431d-8a71-252a7696716c`
TXT	`oneleet-domain-verification-373e9ff1-13e1-4977-b263-4c7fcdf51a15`
TXT	`v=spf1 include:zohomail.eu include:_spf.google.com ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.87.191, 172.67.145.178
		IPv6 hints	2606:4700:3032::6815:57bf, 2606:4700:3036::ac43:91b2
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=252, name=cloudflare-ech.com
SOA	`lana.ns.cloudflare.com`dns@cloudflare.com serial=2410326914

`co`

	DNSSEC	🔒 Signed (DS record present)
	NS	`ns0.centralnic.net` ⭐
	NS	`a.registrydns.co`
	NS	`b.registrydns.co`
	NS	`c.registrydns.co`
	NS	`d.registrydns.co`
	SOA	`ns0.centralnic.net`hostmaster@centralnic.net serial=1759717980

Same first word

rulebase.net

rulebase.co

rulebase.com

Similar names

DNS History

13 records (11 active, 2 former)

●NSlana.ns.cloudflare.com2026-05-26 → 2026-07-28 · 2 obs

● 2026-05-26 23:06:22
● 2026-07-28 00:17:38

●NSruben.ns.cloudflare.com2026-05-26 → 2026-07-28 · 2 obs

● 2026-05-26 23:06:22
● 2026-07-28 00:17:38

●MXalt1.aspmx.l.google.com2026-05-26 → 2026-07-28 · 2 obs

● 2026-05-26 23:06:22
● 2026-07-28 00:17:38

●MXalt2.aspmx.l.google.com2026-05-26 → 2026-07-28 · 2 obs

● 2026-05-26 23:06:22
● 2026-07-28 00:17:38

●MXalt3.aspmx.l.google.com2026-05-26 → 2026-07-28 · 2 obs

● 2026-05-26 23:06:22
● 2026-07-28 00:17:38

●MXalt4.aspmx.l.google.com2026-05-26 → 2026-07-28 · 2 obs

● 2026-05-26 23:06:22
● 2026-07-28 00:17:38

●MXaspmx.l.google.com2026-05-26 → 2026-07-28 · 2 obs

● 2026-05-26 23:06:22
● 2026-07-28 00:17:38

●A104.21.87.1912026-07-24 → 2026-07-28 · 3 obs

○ 2026-05-26 23:06:22
● 2026-07-24 10:56:02
● 2026-07-28 00:17:38

●A172.67.145.1782026-07-24 → 2026-07-28 · 3 obs

○ 2026-05-26 23:06:22
● 2026-07-24 10:56:02
● 2026-07-28 00:17:38

●A2606:4700:3032::6815:57bf2026-07-24 → 2026-07-28 · 3 obs

○ 2026-05-26 23:06:22
● 2026-07-24 10:56:02
● 2026-07-28 00:17:38

●A2606:4700:3036::ac43:91b22026-07-24 → 2026-07-28 · 3 obs

○ 2026-05-26 23:06:22
● 2026-07-24 10:56:02
● 2026-07-28 00:17:38

○A31.43.160.62026-05-26 → 2026-05-26 · 3 obs

● 2026-05-26 23:06:22
○ 2026-07-24 10:56:02
○ 2026-07-28 00:17:38

○A31.43.161.62026-05-26 → 2026-05-26 · 3 obs

● 2026-05-26 23:06:22
○ 2026-07-24 10:56:02
○ 2026-07-28 00:17:38

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
co	a.registrydns.co, b.registrydns.co, c.registrydns.co, d.registrydns.co	-
rulebase.co	lana.ns.cloudflare.com, ruben.ns.cloudflare.com	-

✅ Authoritative Response

Server:172.64.32.182

NS records: lana.ns.cloudflare.com, ruben.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for rulebase.co (unsigned zone)

⏱️ Timing

Total: 557ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.87.191, 172.67.145.178`
AAAA	2	`2606:4700:3032::6815:57bf, 2606:4700:3036::ac43:91b2`
NS	2	`lana.ns.cloudflare.com, ruben.ns.cloudflare.com`
MX	5	`aspmx.l.google.com (pri: 1), alt3.aspmx.l.google.com (pri: 10)...`
TXT	9	`MS=ms67945454, MS=ms84686370...`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`lana.ns.cloudflare.com dns.cloudflare.co`

Analysis

IP Addresses

rulebase.co points to the four IP addresses 104.21.87.191, 172.67.145.178, 2606:4700:3032::6815:57bf and 2606:4700:3036::ac43:91b2.

Two other host names, along with echelonsolution.com, atabd.com and jexvora18.xyz, also share IP numbers with rulebase.co.

Name Servers

rulebase.co has two authoritative name servers — lana.ns.cloudflare.com and ruben.ns.cloudflare.com.

rulebase.co shares its NS records with other domains, for example academics.in, sugar.fyi, geovoluntarios.org and two others.

At least some of rulebase.co's name servers are shared with other domains, for example knowyourregs.com, abraxascodex.com, tony2021.com and two more.

These name servers tend to be deployed in combination with the name servers elly.ns.cloudflare.com and mona.ns.cloudflare.com.

DNS names with 6 IP addresses:

lana.ns.cloudflare.com points to 108.162.192.182, 172.64.32.182, 173.245.58.182 and 3 other IP addresses.

ruben.ns.cloudflare.com points to 108.162.195.71, 162.159.44.71, 172.64.35.71 and 3 other IP addresses.

Mail Servers

rulebase.co has five mail servers, which are aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com and two others.

There is at least a partial MX overlap between rulebase.co and other domains, including discipledad.com, simkey.com, hogisim.co.kr and two others.

alt3.aspmx.l.google.com, alt4.aspmx.l.google.com, aspmx2.googlemail.com and aspmx3.googlemail.com are mail servers that frequently appear together with these mail servers.

Host names that have two IP addresses:

aspmx.l.google.com resolves to 192.178.155.26 and 2607:f8b0:4004:c27::1b.

alt1.aspmx.l.google.com resolves to 108.177.123.26 and 2800:3f0:4003:c0f::1a.

alt2.aspmx.l.google.com resolves to 172.253.116.26 and 2a00:1450:400b:c02::1a.

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

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