omhu-byg.dk is a .dk domain served by 2 nameservers (blair.ns.cloudflare.com, sage.ns.cloudflare.com). It was registered on 16 July 2026 (WHOIS) and first appeared in the .dk zone on 17 July 2026. Its website address 104.21.58.146 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mx1.mailpod16-cph3.g1i.one.com, mx2.mailpod16-cph3.g1i.one.com and 2 more. The zone is not DNSSEC-signed, publishes a DMARC policy and is reachable over IPv6. 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 |
|---|---|---|---|---|---|---|---|
| 104.21.58.146 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.160.96 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 10800s | mx1.mailpod16-cph3.g1i.one.com | 5.249.232.33 | mx1.mailpod16-cph3.g1i.one.com | AS51468 One.com A/S |
| 10 | 10800s | mx2.mailpod16-cph3.g1i.one.com | 5.249.232.34 | mx2.mailpod16-cph3.g1i.one.com | AS51468 One.com A/S |
| 10 | 10800s | mx3.mailpod16-cph3.g1i.one.com | 5.249.232.35 | mx3.mailpod16-cph3.g1i.one.com | AS51468 One.com A/S |
| 10 | 10800s | mx4.mailpod16-cph3.g1i.one.com | 5.249.232.36 | mx4.mailpod16-cph3.g1i.one.com | AS51468 One.com A/S |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3030::6815:3a92 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3037::ac43:a060 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.58.146,172.67.160.96 ech=AEX+DQBBCQAgACBktyLuKLIyoZDaL//k6pE/9zEEOkXrfdxU4oRwGoTeHgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::6815:3a92,2606:4700:3037::ac43:a060 |
| TXT Record |
|---|
| v=spf1 include:_custspf.one.com ~all |
| Policy | Record (omhu-byg.dk) |
|---|---|
| ~all (soft fail) | v=spf1 include:_custspf.one.com ~all |
| Policy | Record (_dmarc.omhu-byg.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject |
| www | 104.21.58.146 172.67.160.96 2606:4700:3030::6815:3a92 2606:4700:3037::ac43:a060 (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network omhu-byg.dk: 104.21.58.146 172.67.160.96 2606:4700:3030::6815:3a92 2606:4700:3037::ac43:a060 (AS13335) www.omhu-byg.dk: 104.21.58.146 172.67.160.96 2606:4700:3030::6815:3a92 2606:4700:3037::ac43:a060 (AS13335) |
| Wildcard | No |
| Denial of existence | Compact NSEC (RFC 9824, "black lies") not walkable |
| CDS / CDNSKEY | Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY |
DNS lookups: 1/10 · policy: ~all
No problems found| Type | Name | Value |
|---|---|---|
| TXT | _acme-challenge.omhu-byg.dk | BZ537raBSttHn9mN7swE--hHwh0zsqyInXelBavd9uo |
| TXT | _acme-challenge.omhu-byg.dk | J9BtP98cRw7n2rcrJkGTLYAIHLDvFyb8dMo5DKZALc0 |
| TXT | _acme-challenge.omhu-byg.dk | NLaRwGECEaw6yR4IXBus2yTI6v3LJ26_zEzJU0TgVAw |
| TXT | _acme-challenge.omhu-byg.dk | kmlWtmK-ZOCIziuPt16svnNc5LD0O554Tr8R_ak-hVQ |
| TXT | _acme-challenge.omhu-byg.dk | l2GIIA6Xh9ZKGtv1zfnFQ6GPSytTiEirIUWMLyjW7n4 |
| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.mx1.mailpod16-cph3.g1i.one.com | DANE-EE · SPKI · SHA-256 | 2362DFAC1BB9F66402E0636BDEF478E5… |
| SMTP _25._tcp.mx2.mailpod16-cph3.g1i.one.com | DANE-EE · SPKI · SHA-256 | 2362DFAC1BB9F66402E0636BDEF478E5… |
| SMTP _25._tcp.mx3.mailpod16-cph3.g1i.one.com | DANE-EE · SPKI · SHA-256 | 2362DFAC1BB9F66402E0636BDEF478E5… |
| SMTP _25._tcp.mx4.mailpod16-cph3.g1i.one.com | DANE-EE · SPKI · SHA-256 | 2362DFAC1BB9F66402E0636BDEF478E5… |
| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✗ Not found |
| Flags | unsigned answer |
| Field | Value |
|---|---|
| Serial | 2417229446 |
| Primary NS (MNAME) | blair.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Field | Value |
|---|---|
| Registrar | ONE.COM A/S |
| Registered | 2026-07-16 |
| Expires | 2027-07-15 (268d) |
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 |
|---|---|---|---|
| 2026-10-16 07:17:24 | 1415ms | 2 NS 2 A 4 MX | 🔒 Secure |
| 2026-10-14 00:02:05 | 753ms | 2 NS 2 A 4 MX | 🔒 Secure |
| 2026-10-12 23:09:33 | 1453ms | 2 NS 2 A 4 MX | 🔒 Secure |
| 2026-10-11 20:36:04 shown | 618ms | 2 NS 2 A 4 MX | 🔓 Insecure |
| 2026-09-26 10:43:44 | 675ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-09-23 15:08:55 | 776ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-09-17 02:18:37 | 916ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-08-27 21:17:28 | 1000ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-08-26 05:41:30 | 1277ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-08-22 02:09:02 | 6540ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-07-22 07:39:24 | 2841ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-07-20 21:37:05 | 1014ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-07-17 08:48:45 | 1714ms | 2 NS 1 A 1 MX | 🔒 Secure |