markpp.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 30 September 2009 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 192.30.252.153 is hosted by GitHub, Inc. (AS36459) in United States. The zone is DNSSEC-signed and validates, has no 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.
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 192.30.252.153 | — | lb-192-30-252-153-iad.github.com | AS36459 | GitHub, Inc. | 192.30.252.0/22 | 🇺🇸 United States | — |
| 192.30.252.154 | — | lb-192-30-252-154-iad.github.com | AS36459 | GitHub, Inc. | 192.30.252.0/22 | 🇺🇸 United States | — |
| www CNAME | markpp.dk (all on markpp.dk) |
| www vs bare domain | Same network markpp.dk: 192.30.252.153 192.30.252.154 (AS36459) www.markpp.dk: 192.30.252.153 192.30.252.154 (AS36459) |
| Wildcard | No |
| Denial of existence | NSEC3 · 0 iterations · no salt RFC 9276 ✓ |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026060701 |
| 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 | ONE.COM A/S |
| Registered | 2009-09-30 |
| Expires | 2027-09-30 (347d) |
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).
No other domain with this registrant in our WHOIS data yet| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-07 09:42:12 | 456ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-10-01 07:08:00 | 445ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-09-25 04:00:06 | 618ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-09-07 08:11:36 | 604ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-08-07 07:11:22 | 8797ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-07-08 23:50:50 | 1060ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-06-27 00:52:33 | 531ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-06-20 11:37:06 | 634ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-06-19 23:06:16 | 3452ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-06-19 03:05:07 | 691ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-06-17 20:20:56 shown | 588ms | 2 NS 2 A 0 MX | 🔒 Secure |