vby.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 23 December 2020 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 91.189.203.238 is hosted by Netvaerkssmeden (AS42638) in Denmark. Mail is handled by mx3.it-hotellet.dk, mx4.it-hotellet.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 |
|---|---|---|---|---|---|---|---|
| 91.189.203.238 | 3600s | — | AS42638 | Netvaerkssmeden | 91.189.200.0/21 | 🇩🇰 Denmark | Frederiksberg |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 3600s | mx3.it-hotellet.dk | 91.189.203.249 | — | AS42638 Netvaerkssmeden |
| 10 | 3600s | mx4.it-hotellet.dk | 91.189.203.248 | — | AS42638 Netvaerkssmeden |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 195.47.247.18 |
| 🔶 Autoconfig | 195.47.247.18 |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _autodiscover._tcp | 0 | 10 | 443 | mail5.it-hotellet.dk |
| TXT Record |
|---|
| v=spf1 include:_spf.it-hotellet.dk -all |
| Policy | Record (vby.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:_spf.it-hotellet.dk -all |
| Policy | Record (_dmarc.vby.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject ; rua=mailto:abuse@it-hotellet.dk; ruf=mailto:abuse@it-hotellet.dk; aspf=r; |
| www | 91.189.203.238 (AS42638) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | Yes: any name under the zone resolves |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
DNS lookups: 1/10 · 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 | 2026101401 |
| 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 | 2020-12-23 |
| Expires | 2030-12-31 (1535d) |
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 |
|---|---|---|---|
| 2026-10-15 06:43:15 shown | 2475ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-30 14:01:48 | 2465ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-23 03:04:50 | 771ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-15 01:15:08 | 2912ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-12 13:00:03 | 4420ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-17 04:25:08 | 8855ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-14 08:07:51 | 4797ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-07-18 08:41:10 | 4846ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-07-13 06:46:48 | 4694ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-26 02:07:06 | 935ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-18 02:02:02 | 6411ms | 2 NS 1 A 2 MX | 🔒 Secure |