blivlaerer.dk is a .dk domain with no delegation in this scan. It was registered on 28 November 2001 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 87.54.32.11 is hosted by TDC Holding A/S (AS3292) in Denmark. 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.
| TXT Record |
|---|
| v=spf1 -all |
| Policy | Record (blivlaerer.dk) |
|---|---|
| -all (hard fail) | v=spf1 -all |
| Policy | Record (_dmarc.blivlaerer.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject;rua=mailto:dmarc@via.dk; ruf=mailto:dmarc@via.dk |
| www | 87.54.32.11 87.54.32.247 (AS3292) (address records, no CNAME) |
| www vs bare domain | Same network blivlaerer.dk: 87.54.32.11 87.54.32.247 (AS3292) www.blivlaerer.dk: 87.54.32.11 87.54.32.247 (AS3292) |
| Wildcard | No |
| Denial of existence | NSEC3 · 50 iterations · 8-byte salt RFC 9276 recommends 0 iterations and no salt |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
DNS lookups: 0/10 · policy: -all
No problems found| Check | Result |
|---|---|
| Validation Status | Not applicable: the domain has no delegation, so there is no zone to validate (stored verdict: 🔒 Secure). |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 713 |
| Primary NS (MNAME) | ns3.supportcenter.dk |
| Responsible (RNAME) | hostmaster@supportcenter.dk |
| Refresh | 900s |
| Retry | 600s |
| Expire | 86400s |
| Minimum (neg-cache TTL) | 3600s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2001-11-28 |
| Expires | 2026-12-31 (71d) |
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 105.
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-18 20:15:56 | 524ms | 3 NS 2 A 1 MX | 🔒 Secure |
| 2026-10-13 12:37:15 | 588ms | 3 NS 2 A 1 MX | 🔒 Secure |
| 2026-10-12 10:36:50 | 399ms | 3 NS 2 A 1 MX | 🔒 Secure |
| 2026-10-06 06:08:49 | 2580ms | 3 NS 2 A 1 MX | 🔒 Secure |
| 2026-10-04 05:44:42 | 941ms | 3 NS 2 A 1 MX | 🔒 Secure |
| 2026-10-01 05:19:22 | 998ms | 3 NS 2 A 1 MX | 🔒 Secure |
| 2026-09-26 03:28:34 | 648ms | 3 NS 2 A 1 MX | 🔒 Secure |
| 2026-09-25 03:07:30 | 805ms | 3 NS 2 A 1 MX | 🔒 Secure |
| 2026-09-24 02:44:09 | 638ms | 3 NS 2 A 1 MX | 🔒 Secure |
| 2026-09-19 14:13:57 | 3360ms | 3 NS 2 A 1 MX | 🔒 Secure |
| 2026-09-12 12:48:15 | 3233ms | 3 NS 2 A 1 MX | 🔒 Secure |
| 2026-09-08 04:08:43 | 974ms | 3 NS 2 A 1 MX | 🔒 Secure |
| 2026-09-07 03:53:10 | 802ms | 3 NS 2 A 1 MX | 🔒 Secure |
| 2026-09-01 17:43:17 | 1321ms | 3 NS 2 A 1 MX | 🔒 Secure |
| 2026-08-28 02:48:48 | 602ms | 3 NS 2 A 1 MX | 🔒 Secure |
| 2026-08-24 00:41:13 | 2464ms | 3 NS 2 A 1 MX | 🔒 Secure |
| 2026-08-21 17:57:09 | 2947ms | 3 NS 2 A 1 MX | 🔒 Secure |
| 2026-08-17 01:03:36 | 19088ms | 3 NS 2 A 1 MX | 🔒 Secure |
| 2026-08-15 22:39:49 | 2959ms | 3 NS 2 A 1 MX | 🔒 Secure |
| 2026-08-10 18:42:10 | 856ms | 3 NS 2 A 1 MX | 🔒 Secure |
| 2026-08-07 17:20:47 | 696ms | 3 NS 2 A 1 MX | 🔒 Secure |
| 2026-08-05 08:55:02 | 3748ms | 3 NS 2 A 1 MX | 🔒 Secure |
| 2026-07-29 07:19:56 | 2827ms | 3 NS 2 A 1 MX | 🔒 Secure |
| 2026-07-24 06:41:25 | 740ms | 3 NS 2 A 1 MX | 🔒 Secure |
| 2026-07-21 18:04:33 | 1161ms | 3 NS 2 A 1 MX | 🔒 Secure |