t-h-byg.dk is a .dk domain served by 2 nameservers (ns1.curanet.dk, ns2.curanet.dk). It was registered on 1 February 2011 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 3.33.152.50 is hosted by Amazon.com, Inc. (AS16509) in United States. Mail is handled by mx1.pub.mailpod10-cph3.one.com, mx2.pub.mailpod10-cph3.one.com and 2 more. 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 |
|---|---|---|---|---|---|---|---|
| 3.33.152.50 | 3600s | a393efcbee787c12c.awsglobalaccelerator.com | AS16509 | Amazon.com, Inc. | 3.33.128.0/17 | 🇺🇸 United States | — |
| 52.223.13.110 | 3600s | a393efcbee787c12c.awsglobalaccelerator.com | AS16509 | Amazon.com, Inc. | 52.223.0.0/17 | 🇺🇸 United States | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 3600s | mx1.pub.mailpod10-cph3.one.com | 104.37.34.70 | mx1.pub.mailpod10-cph3.one.com | AS51468 One.com A/S |
| 10 | 3600s | mx2.pub.mailpod10-cph3.one.com | 104.37.34.71 | mx2.pub.mailpod10-cph3.one.com | AS51468 One.com A/S |
| 10 | 3600s | mx3.pub.mailpod10-cph3.one.com | 104.37.34.72 | mx3.pub.mailpod10-cph3.one.com | AS51468 One.com A/S |
| 10 | 3600s | mx4.pub.mailpod10-cph3.one.com | 104.37.34.73 | mx4.pub.mailpod10-cph3.one.com | AS51468 One.com A/S |
| TXT Record |
|---|
| v=spf1 a mx include:spf.curanet.dk include:spf.simply.com include:_custspf.one.com ~all |
| Policy | Record (t-h-byg.dk) |
|---|---|
| ~all (soft fail) | v=spf1 a mx include:spf.curanet.dk include:spf.simply.com include:_custspf.one.com ~all |
| www CNAME | hosting.auxo.dk (all on auxo.dk) |
| www vs bare domain | Different networks t-h-byg.dk: 3.33.152.50 52.223.13.110 (AS16509) (all like this)www.t-h-byg.dk: 104.21.57.189 172.67.165.120 2606:4700:3031::ac43:a578 2606:4700:3036::6815:39bd (AS13335) |
| Wildcard | No |
| Denial of existence | NSEC3 · 1 iteration · 1-byte salt RFC 9276 recommends 0 iterations and no salt |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
DNS lookups: 7/10 · policy: ~all
No problems found| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.mx1.pub.mailpod10-cph3.one.com | DANE-EE · SPKI · SHA-256 | 6F2F6668E559087AD0C5D55F223128E2… |
| SMTP _25._tcp.mx2.pub.mailpod10-cph3.one.com | DANE-EE · SPKI · SHA-256 | 6F2F6668E559087AD0C5D55F223128E2… |
| SMTP _25._tcp.mx3.pub.mailpod10-cph3.one.com | DANE-EE · SPKI · SHA-256 | 6F2F6668E559087AD0C5D55F223128E2… |
| SMTP _25._tcp.mx4.pub.mailpod10-cph3.one.com | DANE-EE · SPKI · SHA-256 | 6F2F6668E559087AD0C5D55F223128E2… |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026083101 |
| Primary NS (MNAME) | ns1.curanet.dk |
| Responsible (RNAME) | hostmaster@curanet.dk |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 300s |
| Field | Value |
|---|---|
| Registrar | CURANET A/S |
| Registered | 2011-02-01 |
| Expires | 2027-02-28 (132d) |
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 |
|---|---|---|---|
| 2026-09-17 17:48:42 shown | 613ms | 2 NS 2 A 4 MX | 🔒 Secure |
| 2026-08-31 17:40:00 | 670ms | 2 NS 2 A 4 MX | 🔒 Secure |
| 2026-08-28 00:49:15 | 714ms | 2 NS 2 A 4 MX | 🔓 Insecure |
| 2026-08-26 16:31:41 | 596ms | 2 NS 2 A 4 MX | 🔓 Insecure |
| 2026-06-22 16:06:12 | 4134ms | 3 NS 1 A 4 MX | 🔒 Secure |
| 2026-06-22 01:43:14 | 1139ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-18 04:17:54 | 1182ms | 3 NS 1 A 4 MX | 🔒 Secure |