WWW.RTSAK.COM - ctr.kth.se
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ctr.kth.se checked at 2025-10-17T12:56:29.593Z 516ms 121/121/121 100% R:17ctr.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 a parent of ruttval.ctr.kth.se and vagval.ctr.kth.se.
ctr.kth.se points to two IP numbers: 2001:6b0:1:11c2::82ed:1c29 and 130.237.28.41.
Other host names such as arch.kth.se, hallf.kth.se, math.kth.se, bio.kth.se and holding.kth.se share IPs with ctr.kth.se.
ctr.kth.se is delegated to three name servers: a.ns.kth.se, b.ns.kth.se and e.ns.kth.se.
ctr.kth.se at least partially shares 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 commonly used with nic2.lth.se and ns2.chalmers.se and ns.stacken.kth.se.
Host names with two IPs:
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:
e.ns.kth.se points to 130.242.124.12.
ctr.kth.se is served 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 at least partially some mail servers with other domains, for instance irfu.se, hansa.irfu.se, imbim.uu.se, ita.itsnat.se and nation.uu.se.
these mail servers are commonly used with mail.irfu.se.
Host names with two IPs:
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:
mailfilter-ng-2.sunet.se points to 89.45.235.13
mailfilter-ng-4.sunet.se points to 89.45.235.5