thomaswittorff.dk is a .dk domain served by 4 nameservers (ns1045.ui-dns.biz, ns1045.ui-dns.com, ns1045.ui-dns.de and 1 more). It was registered on 27 November 2019 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 217.160.0.155 is hosted by IONOS SE (AS8560) in Germany. Mail is handled by mx01.mail.icloud.com, mx02.mail.icloud.com. The zone is not DNSSEC-signed, 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 |
|---|---|---|---|---|---|---|---|
| 217.160.0.155 | 3600s | 217-160-0-155.elastic-ssl.ui-r.com | AS8560 | IONOS SE | 217.160.0.0/16 | 🇩🇪 Germany | — |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2001:8d8:100f:f000::226 | 3600s | 2001-08d8-100f-f000-0000-0000-0000-0226.elastic-ssl.ui-r.com | AS8560 | IONOS SE | 2001:8d8:0:0:0:0:0:0/32 | 🇩🇪 Germany | — |
| TXT Record |
|---|
| apple-domain=fX5CtLnPxthRWiQg |
| v=spf1 include:icloud.com ~all |
| Policy | Record (thomaswittorff.dk) |
|---|---|
| ~all (soft fail) | v=spf1 include:icloud.com ~all |
| www | 217.160.0.155 2001:8d8:100f:f000::226 (AS8560) (address records, no CNAME) |
| www vs bare domain | Same network thomaswittorff.dk: 217.160.0.155 2001:8d8:100f:f000::226 (AS8560) www.thomaswittorff.dk: 217.160.0.155 2001:8d8:100f:f000::226 (AS8560) |
| Wildcard | No |
DNS lookups: 5/10 · policy: ~all
No problems found| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✗ Not found |
| Flags | unsigned answer |
| Field | Value |
|---|---|
| Serial | 2017060118 |
| Primary NS (MNAME) | ns1045.ui-dns.com |
| Responsible (RNAME) | hostmaster@1und1.com |
| Refresh | 28800s |
| Retry | 7200s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 600s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2019-11-27 |
| Expires | 2028-11-30 (774d) |
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 |
|---|---|---|---|
| 2026-09-01 14:19:22 | 873ms | 4 NS 1 A 2 MX | 🔓 Insecure |
| 2026-08-25 10:03:52 | 9672ms | 4 NS 1 A 2 MX | 🔓 Insecure |
| 2026-06-30 04:24:45 | 1139ms | 4 NS 1 A 2 MX | 🔓 Insecure |
| 2026-06-26 06:13:12 shown | 3788ms | 4 NS 1 A 2 MX | 🔓 Insecure |
| 2026-06-22 19:52:00 | 1055ms | 4 NS 1 A 2 MX | 🔓 Insecure |
| 2026-06-17 17:09:19 | 3700ms | 4 NS 1 A 2 MX | 🔓 Insecure |