b19.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 9 March 2005 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 46.30.213.71 is hosted by One.com A/S (AS51468) in Denmark. Mail is handled by b19-dk.mail.protection.outlook.com, ms85168553.msv1.invalid. The zone is DNSSEC-signed and validates, has no DMARC policy and is reachable over IPv6. 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 |
|---|---|---|---|---|---|---|---|
| 46.30.213.71 | 3600s | webcluster1.webpod13-cph3.one.com | AS51468 | One.com A/S | 46.30.208.0/21 | 🇩🇰 Denmark | Copenhagen |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 52.98.149.136 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2a02:2350:5:10b:3e:fed9:45b6:94ec | 3600s | — | AS51468 | One.com A/S | 2a02:2350:0:0:0:0:0:0/32 | 🇩🇰 Denmark | Copenhagen |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _sipfederationtls._tcp | 100 | 1 | 5061 | sipfed.online.lync.com |
| TXT Record |
|---|
| v=spf1 ip4:85.82.192.199 include:spf.protection.outlook.com include:_custspf.one.com -all |
| Policy | Record (b19.dk) |
|---|---|
| -all (hard fail) | v=spf1 ip4:85.82.192.199 include:spf.protection.outlook.com include:_custspf.one.com -all |
| www | 46.30.213.71 2a02:2350:5:10b:3e:fed9:45b6:94ec (AS51468) (address records, no CNAME) |
| www vs bare domain | Same network b19.dk: 46.30.213.71 2a02:2350:5:10b:3e:fed9:45b6:94ec (AS51468) www.b19.dk: 46.30.213.71 2a02:2350:5:10b:3e:fed9:45b6:94ec (AS51468) |
| Wildcard | No |
| Denial of existence | NSEC3 · 0 iterations · no salt RFC 9276 ✓ |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
DNS lookups: 2/10 · 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 | 2026092701 |
| 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 | 2005-03-09 |
| Expires | 2027-03-31 (164d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-03 20:14:36 shown | 952ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-30 05:46:21 | 592ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-29 15:18:32 | 2358ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-28 13:36:29 | 1287ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-25 12:51:19 | 815ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-03 13:18:45 | 911ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-30 11:00:25 | 2208ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-28 21:48:21 | 894ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-27 18:09:42 | 1671ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-06 10:50:55 | 16906ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-07-01 02:05:04 | 927ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-29 16:40:58 | 1314ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-28 07:09:04 | 955ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-26 01:41:19 | 1860ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-16 13:57:28 | 907ms | 2 NS 1 A 2 MX | 🔒 Secure |