sulo.dk is a .dk domain served by 4 nameservers (ns1.bb-online.net, ns2.bb-online.org, ns3.bb-online.info and 1 more). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 213.123.60.239 is hosted by British Telecommunications PLC (AS2856) in United Kingdom. Mail is handled by mail1.bb-online.co.uk, mail2.bb-online.co.uk and 1 more. The zone is DNSSEC-signed but currently fails validation, 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 |
|---|---|---|---|---|---|---|---|
| 213.123.60.239 | — | — | AS2856 | British Telecommunications PLC | 213.120.0.0/14 | 🇬🇧 United Kingdom | High Wycombe |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | — | mail1.bb-online.co.uk | 136.244.76.63 | mail1.bb-online.co.uk | AS20473 The Constant Company, LLC |
| 20 | — | mail2.bb-online.co.uk | 45.77.226.139 | mail2.bb-online.co.uk | AS20473 The Constant Company, LLC |
| 30 | — | mail4.bb-online.co.uk | 108.61.173.17 | mail4.bb-online.co.uk | AS20473 The Constant Company, LLC |
| www | NXDOMAIN |
| www vs bare domain | Neither resolves sulo.dk: no address www.sulo.dk: no address |
| Wildcard | No |
| Check | Result |
|---|---|
| Validation Status | ⚠️ Bogus |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✗ Not found |
| Flags | broken trust chain resolving 'sulo.dk/A/IN': 127.0.0.1#53 |
| Field | Value |
|---|---|
| Serial | 2025090202 |
| Primary NS (MNAME) | ns1.bb-online.net |
| Responsible (RNAME) | postmaster@sulo.dk |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 10800s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-09-30 17:54:01 | 781ms | 5 NS 0 A 0 MX | 🔓 Insecure |
| 2026-09-30 08:58:27 | 578ms | 5 NS 0 A 0 MX | 🔓 Insecure |
| 2026-09-27 12:18:43 | 537ms | 5 NS 0 A 0 MX | 🔓 Insecure |
| 2026-09-21 15:25:24 | 612ms | 5 NS 0 A 0 MX | 🔓 Insecure |
| 2026-06-28 19:53:13 | 2996ms | 4 NS 1 A 3 MX | 🔓 Insecure |
| 2026-06-17 13:21:02 shown | 4675ms | 4 NS 1 A 3 MX | ⚠️ Bogus |