topdahl.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 7 December 2006 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.21.40.164 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by topdahl-dk.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, publishes a DMARC policy and has no IPv6 address. Below are all of its DNS records from our latest 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 |
|---|---|---|---|---|---|---|---|
| 185.21.40.164 | 3600s | prolinux1.curanet.dk | AS48854 | team.blue Denmark A/S | 185.21.40.0/22 | 🇩🇰 Denmark | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 52.98.149.136 |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _sipfederationtls._tcp | 0 | 1 | 5061 | sipfed.online.lync.com |
| TXT Record |
|---|
| linkedin-site-verification=12e86e1a-278a-4d30-8c29-5966f8eda5a1 |
| MS=ms48201809 |
| v=spf1 ip4:182.21.40.164 ip4:77.66.19.19 ip4:185.21.41.223 ip4:185.21.40.116 ip4:185.21.40.164 a:smtp10.zitcom.dk include:spf.protection.outlook.com -all |
| Policy | Record (topdahl.dk) |
|---|---|
| -all (hard fail) | v=spf1 ip4:182.21.40.164 ip4:77.66.19.19 ip4:185.21.41.223 ip4:185.21.40.116 ip4:185.21.40.164 a:smtp10.zitcom.dk include:spf.protection.outlook.com -all |
| Policy | Record (_dmarc.topdahl.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none; |
| www CNAME | topdahl.dk (all on topdahl.dk) → 185.21.40.164 (AS48854) |
| www vs bare domain | Same network |
| Wildcard | No |
| Denial of existence | NSEC3 · 0 iterations · no salt RFC 9276 ✓ |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
DNS lookups: 2/10 · policy: -all
No problems found| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026101101 |
| 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 | Punktum dk A/S (direct) |
| Registered | 2006-12-07 |
| Expires | 2026-12-31 (74d) |
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 |
|---|---|---|---|
| 2026-10-11 11:24:56 shown | 1545ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-30 03:51:58 | 1042ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-25 17:57:02 | 1131ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-12 19:39:26 | 2367ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-04 19:07:11 | 952ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-02 19:23:56 | 1308ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-27 18:21:39 | 989ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-11 22:16:23 | 5894ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-20 05:47:46 | 5248ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-18 01:57:03 | 1218ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-12 04:16:03 | 9290ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-18 07:32:41 | 858ms | 2 NS 1 A 1 MX | 🔒 Secure |