frv-havn.dk is a .dk domain served by 3 nameservers (ns1.c-system.dk, ns2.c-system.dk, ns3.c-system.dk). It was registered on 4 November 1999 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 93.191.156.128 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by frvhavn-dk0i.mail.protection.outlook.com. The zone is not DNSSEC-signed, publishes a DMARC policy and has no IPv6 address. 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 |
|---|---|---|---|---|---|---|---|
| 93.191.156.128 | 38400s | linux245.unoeuro.com | AS48854 | team.blue Denmark A/S | 93.191.152.0/21 | 🇩🇰 Denmark | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 40.104.116.24 |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _sipfederationtls._tcp | 100 | 1 | 5061 | sipfed.online.lync.com |
| TXT Record |
|---|
| v=spf1 a mx a:mailgw1.c-system.dk a:frv-havn.dk.linux245.unoeuro-server.com ip4:87.63.149.182 ip4:93.191.156.128 include:spf.protection.outlook.com -all |
| Policy | Record (frv-havn.dk) |
|---|---|
| -all (hard fail) | v=spf1 a mx a:mailgw1.c-system.dk a:frv-havn.dk.linux245.unoeuro-server.com ip4:87.63.149.182 ip4:93.191.156.128 include:spf.protection.outlook.com -all |
| Policy | Record (_dmarc.frv-havn.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none |
| www CNAME | frv-havn.dk (all on frv-havn.dk) |
| www vs bare domain | Same network |
| Wildcard | No |
| Selector | CNAME | Key |
|---|---|---|
| selector1 | selector1-frvhavn-dk0i._domainkey.frvhavn.onmicrosoft.com | RSA · ~1024 bit below 2048 bit |
DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.
DNS lookups: 5/10 · policy: -all
No problems found| 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 | 2018011624 |
| Primary NS (MNAME) | ns1.c-system.dk |
| Responsible (RNAME) | admin@c-system.dk |
| Refresh | 10800s |
| Retry | 3600s |
| Expire | 1309600s |
| Minimum (neg-cache TTL) | 38400s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 1999-11-04 |
| Expires | 2026-12-31 (64d) |
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).
| Domain | Registrar |
|---|---|
| frvhavn.dk | Punktum dk A/S (direct) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-01 00:17:48 | 986ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-26 14:17:35 shown | 9809ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-08 14:34:40 | 17999ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-26 09:46:31 | 2639ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-17 09:24:16 | 1164ms | 3 NS 1 A 1 MX | 🔓 Insecure |