celm.dk is a .dk domain served by 2 nameservers (ns3.supportcenter.dk, ns4.supportcenter.dk). It was registered on 7 December 2009 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by ., slet. 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.
| Nameserver | IP addresses | PTR | ASN / ISP |
|---|---|---|---|
| ns3.supportcenter.dk | 87.54.32.150 | — | AS3292 TDC Holding A/S |
| ns4.supportcenter.dk | 2.106.7.200 | ns4.supportcenter.dk | AS3292 TDC Holding A/S |
| TXT Record |
|---|
| HARICA-igpa9jCSPEocsvVhgf1 |
| MS=ms11177410 |
| v=spf1 -all |
| Policy | Record (celm.dk) |
|---|---|
| -all (hard fail) | v=spf1 -all |
| Policy | Record (_dmarc.celm.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject;rua=mailto:dmarc@via.dk; ruf=mailto:dmarc@via.dk |
| www | NXDOMAIN |
| www vs bare domain | Neither resolves celm.dk: no address www.celm.dk: no address |
| 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 |
| Selector | CNAME | Key |
|---|---|---|
| default | — | Revoked (empty key) |
| dkim | — | Revoked (empty key) |
| k1 | — | Revoked (empty key) |
| — | Revoked (empty key) | |
| s1 | — | Revoked (empty key) |
| s2 | — | Revoked (empty key) |
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: 0/10 · policy: -all
No problems found| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | resolution failed: ncache nxrrset |
| Field | Value |
|---|---|
| Serial | 1157 |
| 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 | 2009-12-07 |
| Expires | 2026-12-31 (75d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-15 18:53:52 | 2454ms | 2 NS 0 A 2 MX | 🔒 Secure |
| 2026-10-13 11:44:48 | 381ms | 2 NS 0 A 2 MX | 🔒 Secure |
| 2026-10-12 10:19:18 | 492ms | 2 NS 0 A 2 MX | 🔒 Secure |
| 2026-10-09 05:06:28 | 3182ms | 2 NS 0 A 2 MX | 🔒 Secure |
| 2026-10-07 04:43:16 | 3407ms | 2 NS 0 A 2 MX | 🔒 Secure |
| 2026-10-05 01:59:41 | 1564ms | 2 NS 0 A 2 MX | 🔒 Secure |
| 2026-10-01 01:15:47 | 541ms | 2 NS 0 A 2 MX | 🔒 Secure |
| 2026-09-30 01:08:12 shown | 561ms | 2 NS 0 A 2 MX | 🔒 Secure |
| 2026-09-28 00:49:04 | 521ms | 2 NS 0 A 2 MX | 🔒 Secure |
| 2026-09-26 00:11:34 | 2649ms | 2 NS 0 A 2 MX | 🔒 Secure |
| 2026-09-25 01:43:40 | 516ms | 2 NS 0 A 2 MX | 🔒 Secure |
| 2026-09-22 05:15:23 | 3348ms | 2 NS 0 A 2 MX | 🔒 Secure |
| 2026-09-15 03:54:48 | 611ms | 2 NS 0 A 2 MX | 🔒 Secure |
| 2026-09-13 05:30:18 | 1129ms | 2 NS 0 A 2 MX | 🔒 Secure |
| 2026-09-10 05:16:12 | 562ms | 2 NS 0 A 2 MX | 🔒 Secure |
| 2026-09-07 07:32:43 | 3499ms | 2 NS 0 A 2 MX | 🔒 Secure |
| 2026-08-27 22:01:56 | 398ms | 2 NS 0 A 2 MX | 🔒 Secure |
| 2026-08-25 19:32:47 | 383ms | 2 NS 0 A 2 MX | 🔒 Secure |
| 2026-08-23 09:51:51 | 3743ms | 2 NS 0 A 2 MX | 🔒 Secure |
| 2026-08-22 09:11:52 | 1218ms | 2 NS 0 A 2 MX | 🔒 Secure |
| 2026-08-19 00:54:43 | 10011ms | 2 NS 0 A 2 MX | 🔒 Secure |
| 2026-08-17 15:29:42 | 500ms | 2 NS 0 A 2 MX | 🔒 Secure |
| 2026-08-16 13:14:25 | 543ms | 2 NS 0 A 2 MX | 🔒 Secure |
| 2026-08-15 10:28:45 | 576ms | 2 NS 0 A 2 MX | 🔒 Secure |
| 2026-08-11 06:03:39 | 553ms | 2 NS 0 A 2 MX | 🔒 Secure |