sim.nu - dns.ninja

sim.nu

DNSSEC🔒 Signed (DS record present)
A2a02:250:0:8::51🇸🇪 LOOPIA2a02:250::/33
PTRwebfront1.webcluster.loopia.se
A93.188.2.52🇸🇪 LOOPIA93.188.2.0/23 SE-LOOPIA
NSns1.loopia.se ⭐
A2a02:250:ffff::20🇸🇪 LOOPIA2a02:250:ffff::/48
PTRns1.loopia.se
A93.188.0.20🇸🇪 LOOPIA93.188.0.0/24 SE-LOOPIA Loopia AB
PTRns1.loopia.se
NSns2.loopia.se
A2a02:250:fffe::20🇸🇪 LOOPIA22a02:250:fffe::/48
PTRns2.loopia.se
A185.71.156.20🇸🇪 LOOPIA2185.71.156.0/24
PTRns2.loopia.se
MXmailcluster.loopia.se ⭐
A2a02:250:0:48::11🇸🇪 LOOPIA2a02:250::/33
PTRmailfront1.mailcluster.loopia.se
A2a02:250:0:48::12🇸🇪 LOOPIA2a02:250::/33
PTRmailfront2.mailcluster.loopia.se
A2a02:250:0:48::13🇸🇪 LOOPIA2a02:250::/33
PTRmailfront3.mailcluster.loopia.se
A2a02:250:0:48::14🇸🇪 LOOPIA2a02:250::/33
PTRmailfront4.mailcluster.loopia.se
A93.188.3.11🇸🇪 LOOPIA93.188.2.0/23 SE-LOOPIA
PTRmailfront1.mailcluster.loopia.se
A93.188.3.12🇸🇪 LOOPIA93.188.2.0/23 SE-LOOPIA
PTRmailfront2.mailcluster.loopia.se
A93.188.3.13🇸🇪 LOOPIA93.188.2.0/23 SE-LOOPIA
PTRmailfront3.mailcluster.loopia.se
A93.188.3.14🇸🇪 LOOPIA93.188.2.0/23 SE-LOOPIA
PTRmailfront4.mailcluster.loopia.se
TXTv=spf1 include:spf.loopia.se -all
SOAns1.loopia.seregistry@loopia.se serial=1780531200

nu

DNSSEC🔒 Signed (DS record present)
NScatcher-in-the-rye.nic.nu ⭐
NSa.ns.nu
NSc.ns.nu
NSd.ns.nu
NSm.ns.nu
NSy.ns.nu
NSz.ns.nu
TXTNU zone update: 2026-06-05 17:10:36 +0000 (EPOCH 1780679436) (auto)
TXTid:e59bba3e-5279-4e52-b3d1-3e82776fce98
SOAcatcher-in-the-rye.nic.nuhostmaster@nic.nu serial=1780679497

Subdomains

www.sim.nu
mail.sim.nu

Same first word

sim.sa
sim.org.br
sim.gratis
sim.dk
sim.med.br
sim.coffee
sim.cc
sim.ag
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sim.in.ua
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sim.edu.sg
sim.ac.cn
sim.salvador.br
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sim.goiania.br
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sim.vn
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sim.spb.ru

Similar names

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smi.cn
ims.net
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ism.uz
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smi.legal
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msi.lv
mis.tel
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ims.com.eg
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ism.tj

DNS History

12 records (5 active, 7 former)

20162017201820192020202120222023202420252026NSns1.loopia.sens2.loopia.seatdns01.citynetwork.seatdns02.citynetwork.seatdns03.citynetwork.seMXmailcluster.loopia.semail.sim.nuA2a02:250:0:8::5193.188.2.52188.95.226.249188.95.227.202a00:16d8:2:200::20
○NSatdns01.citynetwork.se2015-06-02 → 2016-12-15 · 4 obs
● 2015-06-02 18:21:34
● 2016-12-15 01:49:10
○ 2020-10-20 14:03:22
○ 2026-06-05 17:25:28
○NSatdns02.citynetwork.se2015-06-02 → 2016-12-15 · 4 obs
● 2015-06-02 18:21:34
● 2016-12-15 01:49:10
○ 2020-10-20 14:03:22
○ 2026-06-05 17:25:28
○NSatdns03.citynetwork.se2015-06-02 → 2016-12-15 · 4 obs
● 2015-06-02 18:21:34
● 2016-12-15 01:49:10
○ 2020-10-20 14:03:22
○ 2026-06-05 17:25:28
●NSns1.loopia.se2020-10-20 → 2026-06-05 · 3 obs
○ 2016-12-15 01:49:10
● 2020-10-20 14:03:22
● 2026-06-05 17:25:28
●NSns2.loopia.se2020-10-20 → 2026-06-05 · 3 obs
○ 2016-12-15 01:49:10
● 2020-10-20 14:03:22
● 2026-06-05 17:25:28
○MXmail.sim.nu2015-06-02 → 2016-12-15 · 4 obs
● 2015-06-02 18:21:34
● 2016-12-15 01:49:10
○ 2020-10-20 14:03:22
○ 2026-06-05 17:25:28
●MXmailcluster.loopia.se2020-10-20 → 2026-06-05 · 3 obs
○ 2016-12-15 01:49:10
● 2020-10-20 14:03:22
● 2026-06-05 17:25:28
○A188.95.226.2492016-09-25 → 2016-12-15 · 5 obs
○ 2016-03-30 02:39:14
● 2016-09-25 13:21:58
● 2016-12-15 01:49:10
○ 2020-10-20 14:03:22
○ 2026-06-05 17:25:28
○A188.95.227.202015-06-02 → 2016-03-30 · 4 obs
● 2015-06-02 18:21:34
● 2016-03-30 02:39:14
○ 2016-09-25 13:21:58
○ 2026-06-05 17:25:28
○A2a00:16d8:2:200::202015-06-02 → 2016-03-30 · 4 obs
● 2015-06-02 18:21:34
● 2016-03-30 02:39:14
○ 2016-09-25 13:21:58
○ 2026-06-05 17:25:28
●A2a02:250:0:8::512020-10-20 → 2026-06-05 · 3 obs
○ 2016-12-15 01:49:10
● 2020-10-20 14:03:22
● 2026-06-05 17:25:28
●A93.188.2.522020-10-20 → 2026-06-05 · 3 obs
○ 2016-12-15 01:49:10
● 2020-10-20 14:03:22
● 2026-06-05 17:25:28

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
nua.ns.nu, c.ns.nu, d.ns.nu, m.ns.nu...12 records
sim.nuns1.loopia.se, ns2.loopia.se-

✅ Authoritative Response

Server:185.71.156.20

NS records: ns1.loopia.se, ns2.loopia.se

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 1479ms | Queries: -

📄 Records

TypeCountSample Data
A193.188.2.52
AAAA12a02:250:0:8::51
NS2ns1.loopia.se, ns2.loopia.se
MX1mailcluster.loopia.se (pri: 10)
TXT1v=spf1 include:spf.loopia.se -all
SOA1ns1.loopia.se registry.loopia.se

📌 Glue Records Collected

Total: 12

In-bailiwick: 12 (a.ns.nu, a.ns.nu, c.ns.nu...)

Analysis

Hierarchy

www.sim.nu and mail.sim.nu are both subdomains of sim.nu.

IP Addresses

sim.nu points to two IP numbers: 93.188.2.52 and 2a02:250:0:8::51.

www.sstf.nu, groplay.se, nisser.se and two other host names share IP numbers with sim.nu.

Name Servers

sim.nu uses two name servers for its delegation: ns1.loopia.se and ns2.loopia.se.

sim.nu uses the same name servers as several other domains — among them luddwes.com, bilbadet.se, tavlingsguiden.se and two more.

sim.nu at least partially shares name servers with other domains, for instance fluffos.org, hjartstartarregistret.org and doubleint.com.

These name servers are regularly seen alongside ns3.loopia.se and ns4.loopia.se as name servers.

The two host names ns1.loopia.se and ns2.loopia.se each have a pair of IP addresses: ns1.loopia.se has 93.188.0.20 and 2a02:250:ffff::20, and ns2.loopia.se has 185.71.156.20 and 2a02:250:fffe::20.

Mail Servers

Mail for sim.nu is handled by a single mail server, mailcluster.loopia.se.

sim.nu uses an identical mail server configuration to several other domains — among them in-focus.se, logistix.se, engstream.se and two more.

sim.nu has at least partial mail server overlap with other domains such as psfoto.se, wildstar.se, ekmf.se and two more.

This set of mail servers commonly appears together with the mail servers mail2.loopia.se.

mailcluster.loopia.se resolves to 8 IP numbers — 93.188.3.11, 93.188.3.12, 93.188.3.13 plus five more.