`researchprojects.kth.se`

DNSSEC	⚠️ Not signed
A	88.198.21.237^{🇩🇪 Hetzner88.198.0.0/16 HETZNER-RZ-NBG-BLK4}
		PTR	`h3949.timmehosting.de`
MX	`mailfilter-ng-1.sunet.se` ⭐
		A	2001:6b0:8:2::207^{🇸🇪 SUNET2001:6b0::/32 The Swedish University Network}
		A	192.36.171.207^{🇸🇪 NORDUNET192.36.171.0/24 -SERVICES}
MX	`mailfilter-ng-3.sunet.se` ⭐
		A	2001:6b0:8:2::200^{🇸🇪 SUNET2001:6b0::/32 The Swedish University Network}
			PTR	`mailfilter-ng-3.sunet.se`
		A	192.36.171.200^{🇸🇪 NORDUNET192.36.171.0/24 -SERVICES}
MX	`mailfilter-ng-4.sunet.se` ⭐
		A	89.45.235.5^{🇸🇪 SUNET89.45.232.0/21 -AGGREGATE}
MX	`mailfilter-ng-2.sunet.se`⁽²⁰⁾
		A	89.45.235.13^{🇸🇪 SUNET89.45.232.0/21 -AGGREGATE}
TXT	`v=spf1 redirect=_spf.sys.kth.se`

`kth.se`

	DNSSEC	🔒 Signed (DS record present)
	A	2001:6b0:1:11c2::82ed:1c28^{🇸🇪 SUNET2001:6b0::/32 The Swedish University Network}
	A	130.237.28.40^{🇸🇪 SUNET130.237.0.0/16 KTH-LAN}
	NS	`a.ns.kth.se` ⭐
	NS	`b.ns.kth.se`
	NS	`e.ns.kth.se`
	NS	`ns2.chalmers.se`
	NS	`sunic.sunet.se`
	MX	`mailfilter-ng-1.sunet.se` ⭐
	MX	`mailfilter-ng-3.sunet.se` ⭐
	MX	`mailfilter-ng-4.sunet.se` ⭐
	MX	`mailfilter-ng-2.sunet.se`⁽²⁰⁾
	TXT	`google-site-verification=6B_ijtuPLs8QEQOrY6CA9KNR6x_Tlq9h87fvzbQcTGk`
	TXT	`HARICA-2QmDZC3DyhpI9p6wUi3`
	TXT	`include:_spf.eu.messagegears.net`
	TXT	`atlassian-domain-verification=bdViuC6aa8uovu2aPgsZjA4zglkgbkqx7eCtfJtIXi6uWFg...`
	TXT	`apple-domain-verification=yiK5a1btuIncRk6Q`
	TXT	`facebook-domain-verification=ybxcywd9y5omfyzv9a4hi1122pxhys`
	TXT	`mentimeter-22c50963-9801-4565-a424-07d4a1e2c1c9`
	TXT	`KTH Royal Institute of Technology, SWEDEN`
	TXT	`v=spf1 include:_spf.kth.se include:customers.clickdimensions.com ~all`
	TXT	`MS=ms86914267`
	TXT	`adobe-idp-site-verification=9cb3a0e2a6197322d0dd6d29de0e1ac1ce9f990e3d5bd864a...`
	SOA	`a.ns.kth.se`hostmaster@kth.se 2026-07-28 #67

WOT: SAFE (62/100)
rank #2778 globally
rank #9 in the tld

kth.se

kth.seis the official website of KTH Royal Institute of Technology (Kungliga Tekniska högskolan), a public research university in Stockholm, Sweden, and one of Europe's leading technical universities.

Key facts

Owner / operator: KTH Royal Institute of Technology (Kungliga Tekniska högskolan) — Swedish state university
TLD:.se— Sweden (ccTLD)
Primary purpose: Official university website — institutional information, research, admissions, staff and student services
Status: Active

WOT: SAFE (91/100)
📈 Tranco rank: #7,282

Subdomains

www.researchprojects.kth.se

Same first word

researchprojects.eu

researchprojects.com

DNS History

5 records (5 active, 0 former)

●MXmailfilter-ng-1.sunet.se2026-05-21 → 2026-07-27 · 2 obs

● 2026-05-21 19:06:40
● 2026-07-27 20:18:46

●MXmailfilter-ng-2.sunet.se2026-05-21 → 2026-07-27 · 2 obs

● 2026-05-21 19:06:40
● 2026-07-27 20:18:46

●MXmailfilter-ng-3.sunet.se2026-05-21 → 2026-07-27 · 2 obs

● 2026-05-21 19:06:40
● 2026-07-27 20:18:46

●MXmailfilter-ng-4.sunet.se2026-05-21 → 2026-07-27 · 2 obs

● 2026-05-21 19:06:40
● 2026-07-27 20:18:46

●A88.198.21.2372026-05-21 → 2026-07-27 · 2 obs

● 2026-05-21 19:06:40
● 2026-07-27 20:18:46

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
se	f.ns.se, i.ns.se, b.ns.se, z.ns.se...	-
kth.se	b.ns.kth.se, e.ns.kth.se, sunic.sunet.se, a.ns.kth.se...	9 records

✅ Authoritative Response

Server:130.237.72.246

NS records: b.ns.kth.se, e.ns.kth.se, sunic.sunet.se, a.ns.kth.se, ns2.chalmers.se

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 730ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`88.198.21.237`
MX	4	`mailfilter-ng-2.sunet.se (pri: 20), mailfilter-ng-1.sunet.se (pri: 10)...`
TXT	1	`v=spf1 redirect=_spf.sys.kth.se`

📌 Glue Records Collected

Total: 9

In-bailiwick: 5 (a.ns.kth.se, b.ns.kth.se, e.ns.kth.se...)

Out-of-bailiwick: 4 (sunic.sunet.se, ns2.chalmers.se, sunic.sunet.se...)

Analysis

Hierarchy

The domain www.researchprojects.kth.se falls under the parent researchprojects.kth.se.

IP Addresses

researchprojects.kth.se directs to one IP number, which is 88.198.21.237.

h3949.timmehosting.de, for instance, is one of the other host names sharing IP numbers with researchprojects.kth.se.

Mail Servers

Mail for researchprojects.kth.se is handled by four mail servers: mailfilter-ng-1.sunet.se, mailfilter-ng-2.sunet.se, mailfilter-ng-3.sunet.se and mailfilter-ng-4.sunet.se.

researchprojects.kth.se shares at least some of its mail servers with other domains — for example calroam.irfu.se, neuro.uu.se, ice.irfu.se and two more.

It is common to find these mail servers paired with the mail servers mail.irfu.se.

Hosts with two IP numbers each:

mailfilter-ng-1.sunet.se directs traffic to 192.36.171.207 and 2001:6b0:8:2::207.

mailfilter-ng-3.sunet.se directs traffic to 192.36.171.200 and 2001:6b0:8:2::200.

Hosts that resolve to one IP address:

mailfilter-ng-2.sunet.se has the IP address 89.45.235.13.

mailfilter-ng-4.sunet.se has the IP address 89.45.235.5.

researchprojects.kth.se - robtex.com