middelfart-gym.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 20 November 2000 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 94.231.108.250 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by mx1-dk.centerasecurity.dk, mx2-dk.centerasecurity.dk and 2 more. The zone is DNSSEC-signed and validates, publishes a DMARC policy and has no IPv6 address. Below are all of its DNS records from this 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 |
|---|---|---|---|---|---|---|---|
| 94.231.108.250 | 3600s | linux50.unoeuro.com | AS48854 | team.blue Denmark A/S | 94.231.96.0/20 | 🇩🇰 Denmark | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 40.104.116.8 |
| 🔶 Autoconfig | 94.231.108.250 |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _autodiscover._tcp | 0 | 100 | 443 | mail.itcfyn.dk |
| _sipfederationtls._tcp | 0 | 1 | 5061 | sipfed.online.lync.com |
| TXT Record |
|---|
| 9td7g52u1lm5usqinfpkc987km |
| f1nfov7oaf7r8u51an9oodtpg8 |
| inst=Middelfart Gymnasium |
| iqgnsl2mu0j8r9mm1k1nl6t42v |
| v=spf1 a:itcpostfix02out.itcfyn.dk a:mail.ithozting.dk include:_spf.centerasecurity.dk include:spf.protection.outlook.com include:spf.simply.com -all |
| ZbjAnfJLGcq5zCy5PZnKAl1N244+b6qlC1ftAq/IP1jyO8+xeIPpSm1nLXMZKao4WLpmaS5XZ/1djPucip+72w== |
| Policy | Record (middelfart-gym.dk) |
|---|---|
| -all (hard fail) | v=spf1 a:itcpostfix02out.itcfyn.dk a:mail.ithozting.dk include:_spf.centerasecurity.dk include:spf.protection.outlook.com include:spf.simply.com -all |
| Policy | Record (_dmarc.middelfart-gym.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; rua=mailto:dmarc_agg@vali.email,mailto:dmarc@itcfyn.dk; |
| www | 94.231.108.250 (AS48854) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | Yes: any name under the zone resolves |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
| Selector | CNAME | Key |
|---|---|---|
| selector2 | selector2-middelfartgym-dk02e._domainkey.o365itcfyn.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: 5/10 · policy: -all
No problems found| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.mx1-dk.centerasecurity.dk | DANE-EE · SPKI · SHA-256 | 56315B43B892E9AEE184919EC6A5821C… |
| SMTP _25._tcp.mx1-dk.centerasecurity.dk | DANE-EE · SPKI · SHA-256 | D4C349E7B72F5CF4A9CEA358F98947C2… |
| SMTP _25._tcp.mx2-dk.centerasecurity.dk | DANE-EE · SPKI · SHA-256 | D4C349E7B72F5CF4A9CEA358F98947C2… |
| SMTP _25._tcp.mx2-dk.centerasecurity.dk | DANE-EE · SPKI · SHA-256 | 56315B43B892E9AEE184919EC6A5821C… |
| SMTP _25._tcp.mx3-dk.centerasecurity.dk | DANE-EE · SPKI · SHA-256 | D4C349E7B72F5CF4A9CEA358F98947C2… |
| SMTP _25._tcp.mx3-dk.centerasecurity.dk | DANE-EE · SPKI · SHA-256 | 56315B43B892E9AEE184919EC6A5821C… |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026082401 |
| Primary NS (MNAME) | ns01.one.com |
| Responsible (RNAME) | hostmaster@one.com |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 600s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2000-11-20 |
| Expires | 2026-12-31 (65d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-09 12:50:57 | 1705ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-10-01 07:20:37 | 1483ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-09-23 17:51:15 | 1183ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-09-21 01:20:36 | 1580ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-08-29 21:01:43 | 2508ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-08-26 16:29:56 | 1783ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-08-24 21:25:54 shown | 1011ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-07-05 16:26:54 | 1735ms | 2 NS 1 A 4 MX | 🔓 Insecure |
| 2026-07-04 11:51:52 | 2983ms | 2 NS 1 A 4 MX | 🔓 Insecure |
| 2026-07-03 11:48:11 | 1653ms | 2 NS 1 A 4 MX | 🔓 Insecure |
| 2026-07-01 03:43:57 | 841ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-19 21:28:17 | 2575ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-17 12:06:14 | 2751ms | 2 NS 1 A 1 MX | 🔓 Insecure |