`rational-combi.com`

DNSSEC	⚠️ Not signed
NS	`ns1-05.azure-dns.com` ⭐
		A	2603:1061:0:700::5^{🇺🇸 Microsoft2603:1000::/25 MICROSOFT}
			PTR	`ns1-05.azure-dns.com`
		A	13.107.236.5^{🇺🇸 Microsoft13.104.0.0/14 MICROSOFT}
			PTR	`ns1-05.azure-dns.com`
NS	`ns2-05.azure-dns.net`
		A	2620:1ec:8ec:700::5^{🇺🇸 Microsoft2620:1ec::/36 MICROSOFT}
			PTR	`ns2-05.azure-dns.net`
		A	150.171.21.5^{🇺🇸 Microsoft150.171.0.0/16 MICROSOFT}
			PTR	`ns2-05.azure-dns.net`
NS	`ns3-05.azure-dns.org`
		A	2a01:111:4000:700::5^{🇬🇧 Microsoft2a01:111:4000::/36}
			PTR	`ns3-05.azure-dns.org`
		A	204.14.183.5^{🇺🇸 Microsoft204.14.180.0/22}
			PTR	`ns3-05.azure-dns.org`
NS	`ns4-05.azure-dns.info`
		A	2620:1ec:bda:700::5^{🇺🇸 Microsoft2620:1ec::/36 MICROSOFT}
			PTR	`ns4-05.azure-dns.info`
		A	208.84.5.5^{🇺🇸 Microsoft208.84.0.0/21 MICROSOFT}
			PTR	`ns4-05.azure-dns.info`
TXT	`v=spf1 include:_u.rational-online.com._spf.dmarclyeu.com ip4:212.34.64.185 -all`
SOA	`ns1-05.azure-dns.com`hostmaster@rational-online.com 2020-04-08 #1

`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=1778694006

Same first word

rational-combi.com

Similar names

robotic-animal.com

DNS History

14 records (4 active, 10 former)

○NSns.kontrast.com2017-10-10 → 2017-10-10 · 3 obs

○ 2016-09-18 14:00:32
● 2017-10-10 13:34:46
○ 2026-05-13 17:45:16

○NSns.kontrast.de2015-05-11 → 2017-10-10 · 3 obs

● 2015-05-11 10:22:16
● 2017-10-10 13:34:46
○ 2026-05-13 17:45:16

●NSns1-05.azure-dns.com2026-05-13 → 2026-05-13 · 2 obs

○ 2017-10-10 13:34:46
● 2026-05-13 17:45:16

○NSns1.kontrast.de2015-05-11 → 2016-09-18 · 4 obs

● 2015-05-11 10:22:16
● 2016-09-18 14:00:32
○ 2017-10-10 13:34:46
○ 2026-05-13 17:45:16

●NSns2-05.azure-dns.net2026-05-13 → 2026-05-13 · 2 obs

○ 2017-10-10 13:34:46
● 2026-05-13 17:45:16

○NSns2.openit.de2015-05-11 → 2016-09-18 · 4 obs

● 2015-05-11 10:22:16
● 2016-09-18 14:00:32
○ 2017-10-10 13:34:46
○ 2026-05-13 17:45:16

●NSns3-05.azure-dns.org2026-05-13 → 2026-05-13 · 2 obs

○ 2017-10-10 13:34:46
● 2026-05-13 17:45:16

●NSns4-05.azure-dns.info2026-05-13 → 2026-05-13 · 2 obs

○ 2017-10-10 13:34:46
● 2026-05-13 17:45:16

○MXrational.mailin1.rmx.de2015-05-11 → 2017-10-10 · 3 obs

● 2015-05-11 10:22:16
● 2017-10-10 13:34:46
○ 2026-05-13 17:45:16

○MXrational.mailin2.rmx.de2015-05-11 → 2017-10-10 · 3 obs

● 2015-05-11 10:22:16
● 2017-10-10 13:34:46
○ 2026-05-13 17:45:16

○MXrational.mailin3.rmx.de2015-05-11 → 2017-10-10 · 3 obs

● 2015-05-11 10:22:16
● 2017-10-10 13:34:46
○ 2026-05-13 17:45:16

○MXrational.mailin4.rmx.de2015-05-11 → 2017-10-10 · 3 obs

● 2015-05-11 10:22:16
● 2017-10-10 13:34:46
○ 2026-05-13 17:45:16

○A185.110.41.1342017-10-10 → 2017-10-10 · 3 obs

○ 2016-09-18 14:00:32
● 2017-10-10 13:34:46
○ 2026-05-13 17:45:16

○A217.69.78.1802015-05-11 → 2016-09-18 · 4 obs

● 2015-05-11 10:22:16
● 2016-09-18 14:00:32
○ 2017-10-10 13:34:46
○ 2026-05-13 17:45:16

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	f.gtld-servers.net, g.gtld-servers.net, e.gtld-servers.net, m.gtld-servers.net...	-
rational-combi.com	ns1-05.azure-dns.com, ns2-05.azure-dns.net, ns3-05.azure-dns.org, ns4-05.azure-dns.info	2 records

✅ Authoritative Response

Server:13.107.236.5

NS records: ns1-05.azure-dns.com, ns2-05.azure-dns.net, ns3-05.azure-dns.org, ns4-05.azure-dns.info

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for rational-combi.com (unsigned zone)

⏱️ Timing

Total: 218ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	4	`ns1-05.azure-dns.com, ns2-05.azure-dns.net...`
TXT	1	`v=spf1 include:_u.rational-online.com._s`
SOA	1	`ns1-05.azure-dns.com hostmaster.rational`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns1-05.azure-dns.com, ns1-05.azure-dns.com)

Analysis

Name Servers

rational-combi.com is delegated to four name servers: ns1-05.azure-dns.com, ns4-05.azure-dns.info, ns2-05.azure-dns.net and ns3-05.azure-dns.org.

rational-combi.com at least partially shares name servers with other domains, for instance atlantictitleservices.net, paynesmarine.com, chenegatap.com, sigepe.com and bioenpro.net.

Host names with two IP numbers:

ns1-05.azure-dns.com points to 2603:1061:0:700::5 and 13.107.236.5; ns4-05.azure-dns.info points to 2620:1ec:bda:700::5 and 208.84.5.5; ns2-05.azure-dns.net points to 2620:1ec:8ec:700::5 and 150.171.21.5; ns3-05.azure-dns.org points to 2a01:111:4000:700::5 and 204.14.183.5.

rational-combi.com - robtex.com