yfdd.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 2 February 2016 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 77.111.240.182 is hosted by One.com A/S (AS51468) in Denmark. Mail is handled by mx1.pub.mailpod4-cph3.one.com, mx2.pub.mailpod4-cph3.one.com and 1 more. The zone is DNSSEC-signed and validates, has no 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 |
|---|---|---|---|---|---|---|---|
| 77.111.240.182 | 600s | webcluster55.webpod11-cph3.one.com | AS51468 | One.com A/S | 77.111.240.0/22 | 🇩🇰 Denmark | Copenhagen |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 600s | mx1.pub.mailpod4-cph3.one.com | 185.164.14.38 | mx1.pub.mailpod4-cph3.one.com | AS51468 One.com A/S |
| 10 | 600s | mx2.pub.mailpod4-cph3.one.com | 185.164.14.39 | mx2.pub.mailpod4-cph3.one.com | AS51468 One.com A/S |
| 10 | 600s | mx3.pub.mailpod4-cph3.one.com | 185.164.14.40 | mx3.pub.mailpod4-cph3.one.com | AS51468 One.com A/S |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 77.111.240.182 |
| 🔶 Autoconfig | 77.111.240.182 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2a02:2350:5:102:80b2:64d6:95a5:fb0b | 600s | — | AS51468 | One.com A/S | 2a02:2350:0:0:0:0:0:0/32 | 🇩🇰 Denmark | Copenhagen |
| TXT Record |
|---|
| v=spf1 include:_custspf.one.com ~all |
| Policy | Record (yfdd.dk) |
|---|---|
| ~all (soft fail) | v=spf1 include:_custspf.one.com ~all |
| www | 77.111.240.182 2a02:2350:5:102:80b2:64d6:95a5:fb0b (AS51468) (address records, no CNAME) |
| www vs bare domain | Same network yfdd.dk: 77.111.240.182 2a02:2350:5:102:80b2:64d6:95a5:fb0b (AS51468) www.yfdd.dk: 77.111.240.182 2a02:2350:5:102:80b2:64d6:95a5:fb0b (AS51468) |
| Wildcard | Yes: any name under the zone resolves |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
DNS lookups: 1/10 · policy: ~all
No problems found| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.mx1.pub.mailpod4-cph3.one.com | DANE-EE · SPKI · SHA-256 | DE4E16A98E12EC166733B8CBCDB9940A… |
| SMTP _25._tcp.mx2.pub.mailpod4-cph3.one.com | DANE-EE · SPKI · SHA-256 | DE4E16A98E12EC166733B8CBCDB9940A… |
| SMTP _25._tcp.mx3.pub.mailpod4-cph3.one.com | DANE-EE · SPKI · SHA-256 | DE4E16A98E12EC166733B8CBCDB9940A… |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026081205 |
| 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 | 2016-02-02 |
| Expires | 2027-02-28 (133d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-12 06:16:04 | 505ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-17 14:57:43 | 916ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-08-13 15:18:28 shown | 1040ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-08-12 10:03:03 | 978ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-07-09 01:47:59 | 1296ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-06-24 22:03:45 | 701ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-06-21 23:10:53 | 1171ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-17 11:33:08 | 1038ms | 2 NS 1 A 4 MX | 🔒 Secure |