DNSWHOIS.INFO - ctr.kth.se
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ctr.kth.se checked at 2025-10-27T23:28:24.354Z 460ms 121/121/121 100% R:20ctr.kth.se
| MX | mailfilter-ng-1.sunet.se | ||||||
| A | 2001:6b0:8:2::207 🇸🇪 SUNET | ||||||
| PTR | mailfilter-ng-1.sunet.se | ||||||
| A | 192.36.171.207🇸🇪 NORDUnet | ||||||
| PTR | mailfilter-ng-1.sunet.se | ||||||
| MX | mailfilter-ng-2.sunet.se | ||||||
| A | 89.45.235.13🇸🇪 SUNET | ||||||
| PTR | mailfilter-89-45-235-13.instance.cloud.sunet.se | ||||||
| MX | mailfilter-ng-3.sunet.se | ||||||
| A | 2001:6b0:8:2::200 🇸🇪 SUNET | ||||||
| PTR | mailfilter-ng-3.sunet.se | ||||||
| A | 192.36.171.200🇸🇪 NORDUnet | ||||||
| PTR | mailfilter-ng-3.sunet.se | ||||||
| MX | mailfilter-ng-4.sunet.se | ||||||
| A | 89.45.235.5🇸🇪 SUNET | ||||||
| PTR | mailfilter-89-45-235-5.instance.cloud.sunet.se | ||||||
| NS | a.ns.kth.se | ||||||
| A | 2001:6b0:1::246 🇸🇪 SUNET | ||||||
| PTR | a.ns.kth.se | ||||||
| A | 130.237.72.246🇸🇪 SUNET | ||||||
| PTR | a.ns.kth.se | ||||||
| NS | b.ns.kth.se | ||||||
| A | 2001:6b0:1::250 🇸🇪 SUNET | ||||||
| PTR | b.ns.kth.se | ||||||
| A | 130.237.72.250🇸🇪 SUNET | ||||||
| PTR | b.ns.kth.se | ||||||
| NS | e.ns.kth.se | ||||||
| A | 130.242.124.12🇸🇪 SUNET | ||||||
| A | 2001:6b0:1:11c2::82ed:1c29 🇸🇪 SUNET | ||||||
| A | 130.237.28.41🇸🇪 SUNET | ||||||
| PTR | ns-vip-02.sys.kth.se | ||||||
kth.se
| NS | ns2.chalmers.se | ||||||
| NS | nic2.lth.se | ||||||
| MX | mailfilter-ng-1.sunet.se | ||||||
| MX | mailfilter-ng-2.sunet.se | ||||||
| MX | mailfilter-ng-3.sunet.se | ||||||
| MX | mailfilter-ng-4.sunet.se | ||||||
| NS | a.ns.kth.se | ||||||
| NS | b.ns.kth.se | ||||||
| A | 2001:6b0:1:11c2::82ed:1c28 🇸🇪 SUNET | ||||||
| A | 130.237.28.40🇸🇪 SUNET | ||||||
rank #8 in the tld
This domain name "kth.se" belongs to the KTH Royal Institute of Technology, a university in Sweden that specializes in engineering and technology. It's one of the leading technical universities in Europe and the highest ranked in northern mainland Europe. The ".se" represents Sweden, the country where the university is located.
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AI analysis
ctr.kth.se is the parent of ruttval.ctr.kth.se and vagval.ctr.kth.se.
ctr.kth.se resolves to two IP numbers: 2001:6b0:1:11c2::82ed:1c29 and 130.237.28.41.
Other host names, for instance arch.kth.se, hallf.kth.se, math.kth.se, bio.kth.se and holding.kth.se share IP numbers with ctr.kth.se.
ctr.kth.se delegates to three name servers: a.ns.kth.se, b.ns.kth.se and e.ns.kth.se.
ctr.kth.se shares some name servers with other domains, for example f.kth.se, remote-access.kth.se, biox.kth.se, 30.237.130.in-addr.arpa and 0.9.e.1.1.0.0.0.0.b.6.0.1.0.0.2.ip6.arpa.
These name servers are often used together with nic2.lth.se, ns2.chalmers.se and ns.stacken.kth.se.
Host names with two IP numbers:
a.ns.kth.se points to 2001:6b0:1::246 and 130.237.72.246.
b.ns.kth.se points to 2001:6b0:1::250 and 130.237.72.250.
Host names with one IP number:
e.ns.kth.se points to 130.242.124.12.
ctr.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.
ctr.kth.se shares some mail servers with other domains, at least partially; for instance irfu.se, hansa.irfu.se, imbim.uu.se, ita.itsnat.se and nation.uu.se.
these mail servers are commonly used alongside the mail servers mail.irfu.se.
Host names with two IP numbers: mailfilter-ng-1.sunet.se points to: 2001:6b0:8:2::207 and 192.36.171.207; mailfilter-ng-3.sunet.se points to: 2001:6b0:8:2::200 and 192.36.171.200.
Host names with one IP number: mailfilter-ng-2.sunet.se points to: 89.45.235.13; mailfilter-ng-4.sunet.se points to: 89.45.235.5.