gtsnet.dk is a .dk domain served by 2 nameservers (ns1.itagil.dk, ns2.itagil.dk). It was registered on 9 June 2020 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 212.237.249.16 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by gtsnet-dk.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, has no 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.
| Nameserver | IP addresses | PTR | ASN / ISP |
|---|---|---|---|
| ns1.itagil.dk | 185.25.141.12 | ns1.curanet.dk | AS48854 team.blue Denmark A/S |
| ns2.itagil.dk | 91.197.248.75 | ns2.curanet.dk | AS48854 team.blue Denmark A/S |
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 212.237.249.16 | 3600s | splash.curanet.dk | AS48854 | team.blue Denmark A/S | 212.237.248.0/23 | 🇩🇰 Denmark | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 52.98.149.152 |
| 🔶 Autoconfig | 212.237.249.16 |
| TXT Record |
|---|
| MS=ms37556588 |
| v=spf1 include:spf.protection.outlook.com -all |
| Policy | Record (gtsnet.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:spf.protection.outlook.com -all |
| www | 212.237.249.16 (AS48854) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | Yes: any name under the zone resolves |
| 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-gtsnet-dk._domainkey.gtsnetservice.w-v1.dkim.mail.microsoft | RSA · ~2048 bit |
| selector2 | selector2-gtsnet-dk._domainkey.gtsnetservice.w-v1.dkim.mail.microsoft | RSA · ~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: 1/10 · 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 | 2026011901 |
| Primary NS (MNAME) | ns1.itagil.dk |
| Responsible (RNAME) | hostmaster@curanet.dk |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 300s |
| Field | Value |
|---|---|
| Registrar | CURANET A/S |
| Registered | 2020-06-09 |
| Expires | 2027-06-30 (252d) |
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).
Showing 100 of 437.
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-09 10:41:56 | 1261ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-01 04:11:02 | 1171ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-27 03:06:15 | 928ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-02 09:15:45 | 840ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-26 10:05:44 | 1350ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-22 04:22:56 | 663ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-19 22:10:27 shown | 1032ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-17 10:13:29 | 3197ms | 2 NS 1 A 1 MX | 🔒 Secure |