by-it.dk is a .dk domain served by 3 nameservers (ns4.dns-123.net, ns5.dns-123.net, ns6.dns-123.net). It was registered on 21 January 2002 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 5.186.164.166 is hosted by FIBIA P/S (AS44869) in Denmark. Mail is handled by server7166.serverpark.dk. 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 |
|---|---|---|---|---|---|---|---|
| 5.186.164.166 | 7200s | server7166.serverpark.dk | AS44869 | FIBIA P/S | 5.186.0.0/16 | 🇩🇰 Denmark | Frederiksberg |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 7200s | server7166.serverpark.dk | 5.186.164.166 | server7166.serverpark.dk | AS44869 FIBIA P/S |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 5.186.164.166 |
| 🔶 Autoconfig | 5.186.164.166 |
| TXT Record |
|---|
| v=spf1 a mx include:_spf.serverpark.dk ~all |
| Policy | Record (by-it.dk) |
|---|---|
| ~all (soft fail) | v=spf1 a mx include:_spf.serverpark.dk ~all |
| Policy | Record (_dmarc.by-it.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none; |
| www | 5.186.164.166 (AS44869) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | Yes: any name under the zone resolves |
| Denial of existence | NSEC zone can be walked (all names enumerable) |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
DNS lookups: 3/10 · 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 | 2022060201 |
| Primary NS (MNAME) | ns4.dns-123.net |
| Responsible (RNAME) | admin@dns-123.net |
| Refresh | 28800s |
| Retry | 7200s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 300s |
| Field | Value |
|---|---|
| Registrar | INTERNET 123 ApS |
| Registered | 2002-01-21 |
| Expires | 2028-03-31 (531d) |
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 |
|---|---|---|---|
| 2026-09-14 18:47:24 shown | 769ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-28 04:31:50 | 892ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-26 18:05:09 | 920ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-25 16:56:13 | 772ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-20 05:32:32 | 697ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-16 18:07:26 | 713ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-16 18:05:33 | 1560ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-16 18:01:02 | 2658ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-16 18:00:04 | 876ms | 3 NS 1 A 1 MX | 🔒 Secure |