ac-service-tech.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 5.103.139.81 is hosted by FIBIA P/S (AS44869) in Denmark. Mail is handled by xn--domne-eu01a-c9a.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 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 |
|---|---|---|---|---|---|---|---|
| 5.103.139.81 | 3598s | 5.103.139.81.static.fibianet.dk | AS44869 | FIBIA P/S | 5.103.0.0/16 | 🇩🇰 Denmark | Frederiksberg |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 0 | 3600s | xn--domne-eu01a-c9a.mail.protection.outlook.com | — | — | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 52.98.149.136 |
| 🔶 Autoconfig | 5.103.139.81 |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _sipfederationtls._tcp | 0 | 1 | 2064 | sipfed.online.lync.com |
| TXT Record |
|---|
| v=spf1 include:spf.protection.outlook.com -all |
| Policy | Record (ac-service-tech.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:spf.protection.outlook.com -all |
| www | 5.103.139.81 (AS44869) (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 |
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 | 2026091901 |
| Primary NS (MNAME) | ns01.one.com |
| Responsible (RNAME) | hostmaster@one.com |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 600s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-03 15:03:29 shown | 8333ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-30 14:50:23 | 1238ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-24 19:12:53 | 855ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-24 00:06:48 | 905ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-20 15:22:27 | 1362ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-21 07:21:29 | 1084ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-29 00:17:46 | 725ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-21 17:47:47 | 875ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-16 12:43:45 | 655ms | 2 NS 1 A 1 MX | 🔒 Secure |