ulb42.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 4 May 2015 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 77.111.240.166 is hosted by One.com A/S (AS51468) in Denmark. Mail is handled by mx1.pub.mailpod9-cph3.one.com, mx2.pub.mailpod9-cph3.one.com and 2 more. The zone is DNSSEC-signed and validates, has no DMARC policy and is reachable over IPv6. 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 |
|---|---|---|---|---|---|---|---|
| 77.111.240.166 | — | webcluster39.webpod11-cph3.one.com | AS51468 | One.com A/S | 77.111.240.0/22 | 🇩🇰 Denmark | Copenhagen |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2a02:2350:5:102:8034:8c87:3c59:20ea | — | — | AS51468 | One.com A/S | 2a02:2350:0:0:0:0:0:0/32 | 🇩🇰 Denmark | Copenhagen |
| www | 77.111.240.142 2a02:2350:5:102:72:80e1:1576:46b1 (AS51468) (address records, no CNAME) |
| www vs bare domain | Same network ulb42.dk: 77.111.240.142 2a02:2350:5:102:72:80e1:1576:46b1 (AS51468) www.ulb42.dk: 77.111.240.142 2a02:2350:5:102:72:80e1:1576:46b1 (AS51468) |
| Wildcard | No |
| Denial of existence | NSEC3 · 0 iterations · no salt RFC 9276 ✓ |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.mx1.pub.mailpod9-cph3.one.com | DANE-EE · SPKI · SHA-256 | 5D2162F5CED0ACD2C3D63E5582045A6C… |
| SMTP _25._tcp.mx2.pub.mailpod9-cph3.one.com | DANE-EE · SPKI · SHA-256 | 5D2162F5CED0ACD2C3D63E5582045A6C… |
| SMTP _25._tcp.mx3.pub.mailpod9-cph3.one.com | DANE-EE · SPKI · SHA-256 | 5D2162F5CED0ACD2C3D63E5582045A6C… |
| SMTP _25._tcp.mx4.pub.mailpod9-cph3.one.com | DANE-EE · SPKI · SHA-256 | 5D2162F5CED0ACD2C3D63E5582045A6C… |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026061001 |
| 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 | 2015-05-04 |
| Expires | 2027-05-31 (223d) |
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 |
|---|---|---|---|
| 2026-10-01 01:06:15 | 653ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-09-30 04:55:24 | 486ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-09-27 18:42:07 | 1245ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-09-23 17:10:29 | 795ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-09-18 14:37:43 | 735ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-09-10 18:48:04 | 1587ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-08-28 01:54:18 | 726ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-06-28 20:26:26 | 1958ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-06-26 20:57:07 | 4400ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-06-23 21:12:19 | 947ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-23 04:38:29 | 972ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-17 13:56:36 shown | 2183ms | 2 NS 1 A 4 MX | 🔒 Secure |