`universityoftwente.com`

DNSSEC	🔒 Signed (DS record present)
A	2001:67c:2564:a429::1:3^{🇳🇱 UTWENTE-AS2001:67c:2564::/48 University Twente IPv6}
A	130.89.12.12^{🇳🇱 UTWENTE-AS130.89.0.0/16 UTNET}
NS	`ns1.utwente.nl` ⭐
		A	2001:67c:2564:a102::3:1^{🇳🇱 UTWENTE-AS2001:67c:2564::/48 University Twente IPv6}
			PTR	`ns1.utwente.nl`
		A	130.89.1.2^{🇳🇱 UTWENTE-AS130.89.0.0/16 UTNET}
			PTR	`ns1.utwente.nl`
NS	`ns2.utwente.nl`
		A	2001:67c:2564:a102::3:2^{🇳🇱 UTWENTE-AS2001:67c:2564::/48 University Twente IPv6}
			PTR	`ns2.utwente.nl`
		A	130.89.1.3^{🇳🇱 UTWENTE-AS130.89.0.0/16 UTNET}
			PTR	`ns2.utwente.nl`
NS	`ns3.utwente.nl`
		A	131.155.0.37^{🇳🇱 AS-TUE131.155.0.0/16 TUENET1}
TXT	`v=spf1 -all`
SOA	`ns1.utwente.nl`dnsmaster@utwente.nl serial=2150630637

`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=1778463536

Same first word

universityoftwente.com

DNS History

12 records (5 active, 7 former)

●NSns1.utwente.nl2015-07-12 → 2026-05-11 · 2 obs

● 2015-07-12 14:22:30
● 2026-05-11 01:48:54

●NSns2.utwente.nl2015-07-12 → 2026-05-11 · 2 obs

● 2015-07-12 14:22:30
● 2026-05-11 01:48:54

●NSns3.utwente.nl2015-07-12 → 2026-05-11 · 2 obs

● 2015-07-12 14:22:30
● 2026-05-11 01:48:54

○MXmx-1.mf.surf.net2015-07-12 → 2017-01-31 · 4 obs

● 2015-07-12 14:22:30
● 2017-01-31 10:18:48
○ 2019-03-23 09:35:34
○ 2026-05-11 01:48:54

○MXmx-a.mf.surf.net2015-07-12 → 2017-01-31 · 4 obs

● 2015-07-12 14:22:30
● 2017-01-31 10:18:48
○ 2019-03-23 09:35:34
○ 2026-05-11 01:48:54

○MXmx1.surfmailfilter.nl2019-03-23 → 2019-03-23 · 4 obs

○ 2017-01-31 10:18:48
● 2019-03-23 09:35:34
○ 2026-02-20 20:11:46
○ 2026-05-11 01:48:54

○MXmx2.surfmailfilter.nl2019-03-23 → 2019-03-23 · 4 obs

○ 2017-01-31 10:18:48
● 2019-03-23 09:35:34
○ 2026-02-20 20:11:46
○ 2026-05-11 01:48:54

●A130.89.12.122026-02-20 → 2026-05-11 · 3 obs

○ 2019-03-23 09:35:34
● 2026-02-20 20:11:46
● 2026-05-11 01:48:54

○A130.89.3.2492015-07-12 → 2019-03-23 · 4 obs

● 2015-07-12 14:22:30
● 2019-03-23 09:35:34
○ 2026-02-20 20:11:46
○ 2026-05-11 01:48:54

○A2001:67c:2564:a102::1:12015-07-12 → 2019-03-23 · 4 obs

● 2015-07-12 14:22:30
● 2019-03-23 09:35:34
○ 2026-02-20 20:11:46
○ 2026-05-11 01:48:54

●A2001:67c:2564:a429::1:32026-02-20 → 2026-05-11 · 3 obs

○ 2019-03-23 09:35:34
● 2026-02-20 20:11:46
● 2026-05-11 01:48:54

○A92.61.183.662015-07-12 → 2015-07-12 · 3 obs

● 2015-07-12 14:22:30
○ 2026-02-20 20:11:46
○ 2026-05-11 01:48:54

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
universityoftwente.com	ns1.utwente.nl, ns2.utwente.nl, ns3.utwente.nl	-

✅ Authoritative Response

Server:131.155.0.37

NS records: ns1.utwente.nl, ns2.utwente.nl, ns3.utwente.nl

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 793ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`130.89.12.12`
AAAA	1	`2001:67c:2564:a429::1:3`
NS	3	`ns2.utwente.nl, ns3.utwente.nl...`
TXT	1	`v=spf1 -all`
SOA	1	`ns1.utwente.nl dnsmaster.utwente.nl`

Analysis

IP Addresses

universityoftwente.com points to two IP numbers: 2001:67c:2564:a429::1:3 and 130.89.12.12.

Other host names, for instance eensat.org, www.geoversity.io, twenteacademy.nl, utwente.net and stars-project.org share IP numbers with universityoftwente.com.

Name Servers

The domain universityoftwente.com is delegated to three name servers: ns1.utwente.nl, ns2.utwente.nl and ns3.utwente.nl.

universityoftwente.com shares name servers with other domains at least partially, for instance 192.89.130.in-addr.arpa, beta-oost.nl, geohero.org, 17.87.192.in-addr.arpa and eensat.org.

These name servers are commonly used with ns2.surfnet.nl, ns4.snt.utwente.nl, ns5.snt.utwente.nl and ns6.snt.utwente.nl.

Host names with two IPs:

ns1.utwente.nl points to 2001:67c:2564:a102::3:1 and 130.89.1.2.

ns2.utwente.nl points to 2001:67c:2564:a102::3:2 and 130.89.1.3.

Host names with one IP:

ns3.utwente.nl points to 131.155.0.37.

universityoftwente.com - robtex.com