penfor.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 23 April 2018 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.21.40.175 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by eu-esec-01.heimdalsecurity.com, eu-esec-02.heimdalsecurity.com. 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 |
|---|---|---|---|---|---|---|---|
| 185.21.40.175 | 600s | vm1484.enterprisecloud.nu | AS48854 | team.blue Denmark A/S | 185.21.40.0/22 | 🇩🇰 Denmark | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 40.104.116.56 |
| TXT Record |
|---|
| MS=ms32378486 |
| v=spf1 include:spf-esec.heimdalsecurity.com include:web.shared.mysmtp.com include:spf.protection.outlook.com include:spf.curanet.dk -all |
| Policy | Record (penfor.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:spf-esec.heimdalsecurity.com include:web.shared.mysmtp.com include:spf.protection.outlook.com include:spf.curanet.dk -all |
| www | 185.21.40.175 (AS48854) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | No |
| Denial of existence | NSEC3 · 0 iterations · no salt RFC 9276 ✓ |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
DNS lookups: 9/10 · policy: -all
| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.eu-esec-01.heimdalsecurity.com | DANE-EE · SPKI · SHA-256 | 2E8933DD6DB99304A5A9D5C4ECDE7B8E… |
| SMTP _25._tcp.eu-esec-02.heimdalsecurity.com | DANE-EE · SPKI · SHA-256 | 2E8933DD6DB99304A5A9D5C4ECDE7B8E… |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026100801 |
| 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 | 2018-04-23 |
| Expires | 2027-04-30 (194d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-09 03:30:58 shown | 2270ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-10 17:48:44 | 981ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-26 13:30:37 | 928ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-09 17:02:07 | 1226ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-07-29 00:21:50 | 4870ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-07-10 15:28:56 | 8938ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-27 22:19:37 | 712ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-26 06:45:26 | 1879ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-25 21:20:12 | 1395ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-17 13:45:28 | 2245ms | 2 NS 1 A 2 MX | 🔒 Secure |