f5-update.dk is a .dk domain served by 2 nameservers (lady.ns.cloudflare.com, yahir.ns.cloudflare.com). It was registered on 10 October 2019 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 77.111.240.31 is hosted by One.com A/S (AS51468) in Denmark. Mail is handled by mx1.pub.mailpod11-cph3.one.com, mx2.pub.mailpod11-cph3.one.com and 2 more. 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 |
|---|---|---|---|---|---|---|---|
| 77.111.240.31 | 300s | — | AS51468 | One.com A/S | 77.111.240.0/22 | 🇩🇰 Denmark | Copenhagen |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 300s | mx1.pub.mailpod11-cph3.one.com | 104.37.34.230 | mx1.pub.mailpod11-cph3.one.com | AS51468 One.com A/S |
| 10 | 300s | mx2.pub.mailpod11-cph3.one.com | 104.37.34.231 | mx2.pub.mailpod11-cph3.one.com | AS51468 One.com A/S |
| 10 | 300s | mx3.pub.mailpod11-cph3.one.com | 104.37.34.232 | mx3.pub.mailpod11-cph3.one.com | AS51468 One.com A/S |
| 10 | 300s | mx4.pub.mailpod11-cph3.one.com | 104.37.34.233 | mx4.pub.mailpod11-cph3.one.com | AS51468 One.com A/S |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 77.111.240.31 |
| 🔶 Autoconfig | 77.111.240.31 |
| Policy | Record (_dmarc.f5-update.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none; rua=mailto:rua+35ysdb86i823@dmarcwise.email; |
| Status | Report address (rua) |
|---|---|
| ✓ Enabled | mailto:rua+35ysdb86i823@dmarcwise.email |
| www | 127.0.0.1 (address records, no CNAME) |
| Wildcard | Yes: any name under the zone resolves |
| CDS / CDNSKEY | Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY |
| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.mx1.pub.mailpod11-cph3.one.com | DANE-EE · SPKI · SHA-256 | 24F573980561755185B794745411B05D… |
| SMTP _25._tcp.mx2.pub.mailpod11-cph3.one.com | DANE-EE · SPKI · SHA-256 | 24F573980561755185B794745411B05D… |
| SMTP _25._tcp.mx3.pub.mailpod11-cph3.one.com | DANE-EE · SPKI · SHA-256 | 24F573980561755185B794745411B05D… |
| SMTP _25._tcp.mx4.pub.mailpod11-cph3.one.com | DANE-EE · SPKI · SHA-256 | 24F573980561755185B794745411B05D… |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2417042344 |
| Primary NS (MNAME) | lady.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Field | Value |
|---|---|
| Registrar | CURANET A/S |
| Registered | 2019-10-10 |
| Expires | 2026-10-31 (14d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-10 02:09:04 shown | 1728ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-10-05 14:20:00 | 708ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-09-25 13:01:18 | 2534ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-09-18 12:11:15 | 1378ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-09-07 00:46:41 | 1343ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-08-23 14:43:00 | 4054ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-08-19 10:59:37 | 1781ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-08-18 10:58:49 | 2319ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-08-09 20:57:11 | 1387ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-08-01 08:02:26 | 1161ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-07-05 20:10:31 | 1483ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-06-28 18:22:35 | 1008ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-06-17 09:10:40 | 3713ms | 2 NS 1 A 4 MX | 🔒 Secure |