tornbjerg-gym.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 16 February 1998 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.21.40.12 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by tornbjerggym-dk02c.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 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 |
|---|---|---|---|---|---|---|---|
| 185.21.40.12 | 3600s | prolinux100.curanet.dk | AS48854 | team.blue Denmark A/S | 185.21.40.0/22 | 🇩🇰 Denmark | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 40.104.116.56 |
| 🔶 Autoconfig | 185.21.40.12 |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _autodiscover._tcp | 0 | 100 | 443 | outlook.office365.com |
| _sipfederationtls._tcp | 0 | 1 | 5061 | sipfed.online.lync.com |
| TXT Record |
|---|
| 9td7g52u1lm5usqinfpkc987km |
| f1nfov7oaf7r8u51an9oodtpg8 |
| hjSM0CeiKpH1B0OWCTkoxaPr5WuwJihSto5Gy7bh8gpNnged5s05Rj7ZuNY8PtPYOeO/PDcUdvfVUy3NRgs2yw== |
| inst=Tornbjerg Gymnasium |
| iqgnsl2mu0j8r9mm1k1nl6t42v |
| v=spf1 ip4:87.48.163.29 include:spf.protection.outlook.com include:spf.curanet.dk -all |
| Policy | Record (tornbjerg-gym.dk) |
|---|---|
| -all (hard fail) | v=spf1 ip4:87.48.163.29 include:spf.protection.outlook.com include:spf.curanet.dk -all |
| Policy | Record (_dmarc.tornbjerg-gym.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; rua=mailto:dmarc_agg@vali.email,mailto:dmarc@itcfyn.dk; |
| www | 185.21.40.12 (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-tornbjerggym-dk02c._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: 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 | 2026041501 |
| 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 | 1998-02-16 |
| Expires | 2027-03-31 (158d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-18 23:13:51 | 804ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-11 17:11:54 | 2342ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-09 10:51:08 | 1109ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-07 09:39:45 | 1109ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-06 02:26:54 | 1514ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-23 23:31:33 | 1305ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-02 12:46:37 shown | 9652ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-21 11:49:01 | 1439ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-20 19:28:31 | 1181ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-20 01:16:01 | 700ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-19 00:36:31 | 791ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-18 06:46:41 | 1414ms | 2 NS 1 A 1 MX | 🔒 Secure |