upgrade2update.dk is a .dk domain served by 2 nameservers (ns3.supportcenter.dk, ns4.supportcenter.dk). It was registered on 10 October 2022 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. 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 |
|---|
| v=spf1 -all |
| Policy | Record (upgrade2update.dk) |
|---|---|
| -all (hard fail) | v=spf1 -all |
| Policy | Record (_dmarc.upgrade2update.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; rua=mailto:6073f6b2c01db@ag.dmarcly.com; ruf=mailto:6073f6b2c01db@fo.dmarcly.com; sp=reject; fo=1; |
| www CNAME | www.update2upgrade.dk (all on update2upgrade.dk) |
| www vs bare domain | Only www resolves upgrade2update.dk: no address (all like this)www.upgrade2update.dk: 216.58.201.243 2a00:1450:400f:810::2013 (AS15169) |
| 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 | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | resolution failed: ncache nxrrset |
| Field | Value |
|---|---|
| Serial | 463 |
| 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 | 2022-10-10 |
| Expires | 2027-10-09 (352d) |
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).
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-19 08:12:11 | 268ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-10-18 07:46:58 | 2869ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-10-17 06:38:49 | 268ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-10-13 22:23:53 | 3375ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-10-11 13:08:39 | 422ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-10-05 01:32:33 | 1266ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-10-04 00:55:01 shown | 316ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-10-02 07:06:06 | 348ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-09-30 06:55:31 | 312ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-09-28 22:50:51 | 2911ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-09-26 22:01:08 | 448ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-09-21 14:05:57 | 399ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-09-19 03:43:15 | 2632ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-09-16 00:30:53 | 502ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-09-14 14:18:34 | 464ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-09-09 02:07:36 | 441ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-08-29 16:57:13 | 964ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-08-27 09:48:57 | 529ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-08-26 14:06:26 | 324ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-08-23 11:40:34 | 2976ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-08-17 20:24:13 | 469ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-08-11 18:01:36 | 842ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-08-09 07:52:22 | 16436ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-08-07 04:38:45 | 599ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-08-02 17:58:40 | 404ms | 2 NS 0 A 0 MX | 🔒 Secure |