simu.dk is a .dk domain served by 2 nameservers (ns.dandomain.dk, ns2.dandomain.dk). It was registered on 26 March 1996 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 5.179.95.231 is hosted by GlobalConnect A/S (AS31027) in Denmark. Mail is handled by simu-dk.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, publishes a DMARC policy and has no IPv6 address. Below are all of its DNS records from our latest scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 5.179.95.231 | 3600s | — | AS31027 | GlobalConnect A/S | 5.179.80.0/20 | 🇩🇰 Denmark | Copenhagen |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 40.104.116.8 |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _sipfederationtls._tcp | 1 | 100 | 5061 | sipfed.online.lync.com |
| TXT Record |
|---|
| _globalsign-domain-verification=7NWtzQnyQkEB_jifPKN3bGwh-zaKXFCThJuMiO9l4D |
| _sip._tls.simu.dk. 1800 IN SRV 8 100 443 sip.simu.dk. |
| _sipfederationtls._tcp.edu.simu.dk. 1800 IN SRV 8 100 5061 sipfed.online.lync.com. |
| _sipfederationtls._tcp.simu.dk. 1800 IN SRV 8 100 5061 sip.simu.dk.? |
| adobe-idp-site-verification=f238be14d768 bdf5289b439e5b74821b7ce9f0ae02747cad9a55 3558cfa741fa |
| adobe-idp-site-verification=f238be14d768bdf5289b439e5b74821b7ce9f0ae02747cad9a553558cfa741fa |
| DZC puD9whT |
| MS=ms79716490 |
| v=spf1 mx include:servers.mcsv.net ip4:20.54.238.131 include:spf.protection.outlook.com a:email.ibc.dk ~all |
| xLsEb4Db8AZKKw7vTMxdTjiTLK5kykqRJxJgOSVLPRt+vibgCuOr2xqO/1I1X4nTgm3rdizh4RaBE5OhY1REVg== |
| Policy | Record (simu.dk) |
|---|---|
| ~all (soft fail) | v=spf1 mx include:servers.mcsv.net ip4:20.54.238.131 include:spf.protection.outlook.com a:email.ibc.dk ~all |
| Policy | Record (_dmarc.simu.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none; pct=100; rua=mailto:dmarc@ibc.dk; ruf=mailto:dmarc@ibc.dk |
| www | 5.179.95.231 (AS31027) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | No |
| Denial of existence | NSEC3 · 1 iteration · 1-byte salt RFC 9276 recommends 0 iterations and no salt |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
| Selector | CNAME | Key |
|---|---|---|
| selector1 | selector1-simu-dk._domainkey.ibco365.onmicrosoft.com | RSA · ~1024 bit below 2048 bit |
DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.
DNS lookups: 4/10 · policy: ~all
No problems found| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026031302 |
| Primary NS (MNAME) | ns.dandomain.dk |
| Responsible (RNAME) | hostmaster@dandomain.dk |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 300s |
| Field | Value |
|---|---|
| Registrar | DANDOMAIN A/S |
| Registered | 1996-03-26 |
| Expires | 2027-04-30 (185d) |
Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-08-28 05:42:06 shown | 1115ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-24 08:54:23 | 2687ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-23 02:45:23 | 1164ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-18 04:51:44 | 922ms | 2 NS 1 A 1 MX | 🔒 Secure |