bys.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 13 October 1999 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 23.236.62.147 is hosted by Google LLC (AS396982) in United States. Mail is handled by mx1-dk.centerasecurity.dk, mx2-dk.centerasecurity.dk. The zone is DNSSEC-signed and validates, has no 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 |
|---|---|---|---|---|---|---|---|
| 23.236.62.147 | 3600s | 147.62.236.23.bc.googleusercontent.com | AS396982 | Google LLC | 23.236.48.0/20 | 🇺🇸 United States | Council Bluffs |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 52.98.154.152 |
| TXT Record |
|---|
| v=spf1 a:outbound.centerasecurity.dk include:spf.protection.outlook.com -all |
| Policy | Record (bys.dk) |
|---|---|
| -all (hard fail) | v=spf1 a:outbound.centerasecurity.dk include:spf.protection.outlook.com -all |
| www CNAME | www32.wixdns.net (all on wixdns.net) → 34.149.87.45 (AS396982) |
| 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| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.mx1-dk.centerasecurity.dk | DANE-EE · SPKI · SHA-256 | 56315B43B892E9AEE184919EC6A5821C… |
| SMTP _25._tcp.mx1-dk.centerasecurity.dk | DANE-EE · SPKI · SHA-256 | D4C349E7B72F5CF4A9CEA358F98947C2… |
| SMTP _25._tcp.mx2-dk.centerasecurity.dk | DANE-EE · SPKI · SHA-256 | 56315B43B892E9AEE184919EC6A5821C… |
| SMTP _25._tcp.mx2-dk.centerasecurity.dk | DANE-EE · SPKI · SHA-256 | D4C349E7B72F5CF4A9CEA358F98947C2… |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026100101 |
| 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 | 1999-10-13 |
| Expires | 2026-12-31 (70d) |
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 |
|---|---|---|---|
| 2026-10-08 01:33:33 shown | 627ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-10-01 21:33:47 | 875ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-05 22:32:26 | 1172ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-30 07:07:42 | 1969ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-20 10:33:26 | 5194ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-03 22:38:28 | 9099ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-30 16:34:30 | 1278ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-25 10:52:55 | 758ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-16 18:26:01 | 810ms | 2 NS 1 A 2 MX | 🔒 Secure |