`rationarium.org`

DNSSEC	⚠️ Not signed
A	165.22.42.165^{🇺🇸 DIGITALOCEAN165.22.32.0/20 DigitalOcean}
		PTR	`www.rationarium.org`
NS	`ns1.digitalocean.com` ⭐
		A	2606:4700:52::ac40:34d2^{🇺🇸 Cloudflare2606:4700:52::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ns1.digitalocean.com`
		A	172.64.52.210^{🇺🇸 Cloudflare172.64.52.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ns1.digitalocean.com`
NS	`ns2.digitalocean.com`
		A	2606:4700:5a::ac40:3515^{🇺🇸 Cloudflare2606:4700:5a::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ns2.digitalocean.com`
		A	172.64.53.21^{🇺🇸 Cloudflare172.64.53.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ns2.digitalocean.com`
NS	`ns3.digitalocean.com`
		A	2606:4700:52::ac40:31d1^{🇺🇸 Cloudflare2606:4700:52::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ns3.digitalocean.com`
		A	172.64.49.209^{🇺🇸 Cloudflare172.64.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ns3.digitalocean.com`
MX	`aspmx.l.google.com` ⭐
		A	2607:f8b0:4023:c06::1b^{🇺🇸 Google2607:f8b0::/32}
			PTR	`dz-in-f27.1e100.net`
		A	142.251.2.26^{🇺🇸 Google142.251.2.0/24}
			PTR	`dl-in-f26.1e100.net`
MX	`alt1.aspmx.l.google.com`⁽⁵⁾
		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	`alt2.aspmx.l.google.com`⁽⁵⁾
		A	2607:f8b0:4023:3003::1b^{🇺🇸 Google2607:f8b0::/32}
			PTR	`yulnkjt-in-f27.1e100.net`
		A	172.253.145.27^{🇺🇸 Google172.253.145.0/24}
			PTR	`yulnkjt-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:c00::1b^{🇧🇪 Google2a00:1450:400c::/48}
			PTR	`ws-in-f27.1e100.net`
			PTR	`ws-in-x1b.1e100.net`
		A	173.194.76.26^{🇺🇸 Google173.194.76.0/24}
			PTR	`ws-in-f26.1e100.net`
TXT	`v=spf1 include:_spf.google.com ~all`
SOA	`ns1.digitalocean.com`hostmaster@rationarium.org serial=0

`org`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a0.org.afilias-nst.info` ⭐ ⚠️ Not in parent delegation
	NS	`a2.org.afilias-nst.info` ⚠️ Not in parent delegation
	NS	`b0.org.afilias-nst.org`
	NS	`b2.org.afilias-nst.org`
	NS	`c0.org.afilias-nst.info` ⚠️ Not in parent delegation
	NS	`d0.org.afilias-nst.org`
	SOA	`a0.org.afilias-nst.info`hostmaster@donuts.email serial=1778426359

📈 Tranco rank: #814,181

Subdomains

wit.rationarium.org

cornell.rationarium.org

Same first word

rationarium.org

rationarium.net

DNS History

12 records (9 active, 3 former)

●NSns1.digitalocean.com2026-04-12 → 2026-05-10 · 2 obs

● 2026-04-12 10:36:26
● 2026-05-10 15:37:12

●NSns2.digitalocean.com2026-04-12 → 2026-05-10 · 2 obs

● 2026-04-12 10:36:26
● 2026-05-10 15:37:12

●NSns3.digitalocean.com2026-04-12 → 2026-05-10 · 2 obs

● 2026-04-12 10:36:26
● 2026-05-10 15:37:12

●MXalt1.aspmx.l.google.com2026-04-12 → 2026-05-10 · 2 obs

● 2026-04-12 10:36:26
● 2026-05-10 15:37:12

●MXalt2.aspmx.l.google.com2026-04-12 → 2026-05-10 · 2 obs

● 2026-04-12 10:36:26
● 2026-05-10 15:37:12

●MXalt3.aspmx.l.google.com2026-04-12 → 2026-05-10 · 2 obs

● 2026-04-12 10:36:26
● 2026-05-10 15:37:12

●MXalt4.aspmx.l.google.com2026-04-12 → 2026-05-10 · 2 obs

● 2026-04-12 10:36:26
● 2026-05-10 15:37:12

●MXaspmx.l.google.com2026-04-12 → 2026-05-10 · 2 obs

● 2026-04-12 10:36:26
● 2026-05-10 15:37:12

●A165.22.42.1652026-05-10 → 2026-05-10 · 3 obs

○ 2026-04-22 05:31:34
● 2026-05-10 09:50:18
● 2026-05-10 15:37:12

○A198.185.159.1442026-04-12 → 2026-04-22 · 4 obs

● 2026-04-12 10:36:26
● 2026-04-22 05:31:34
○ 2026-05-10 09:50:18
○ 2026-05-10 15:37:12

○A198.49.23.1442026-04-12 → 2026-04-22 · 4 obs

● 2026-04-12 10:36:26
● 2026-04-22 05:31:34
○ 2026-05-10 09:50:18
○ 2026-05-10 15:37:12

○A198.49.23.1452026-04-12 → 2026-04-22 · 4 obs

● 2026-04-12 10:36:26
● 2026-04-22 05:31:34
○ 2026-05-10 09:50:18
○ 2026-05-10 15:37:12

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
org	d0.org.afilias-nst.org, b0.org.afilias-nst.org, b2.org.afilias-nst.org	-
rationarium.org	ns1.digitalocean.com, ns2.digitalocean.com, ns3.digitalocean.com	-

✅ Authoritative Response

Server:172.64.53.21

NS records: ns1.digitalocean.com, ns2.digitalocean.com, ns3.digitalocean.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for rationarium.org (unsigned zone)

⏱️ Timing

Total: 341ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`165.22.42.165`
NS	3	`ns1.digitalocean.com, ns2.digitalocean.com...`
MX	5	`alt4.aspmx.l.google.com (pri: 10), alt2.aspmx.l.google.com (pri: 5)...`
TXT	1	`v=spf1 include:_spf.google.com ~all`
SOA	1	`ns1.digitalocean.com hostmaster.rationar`

Analysis

Hierarchy

rationarium.org is parent of wit.rationarium.org and cornell.rationarium.org.

IP Addresses

rationarium.org resolves to a single IP address: 165.22.42.165.

Name Servers

rationarium.org is delegated to three name servers: ns1.digitalocean.com, ns2.digitalocean.com and ns3.digitalocean.com.

rationarium.org at least partially shares name servers with other domains, including pepma-net.gr, finvisor.nl, icf.ch, synducer.com and openvita.com.