isolerselv.dk is a .dk domain served by 7 nameservers (ns1.markmonitor.com, ns2.markmonitor.com, ns3.markmonitor.com and 4 more). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 217.145.55.21 is hosted by Sentia Denmark A/S (AS47292) in Denmark. The zone is not DNSSEC-signed, 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 |
|---|---|---|---|---|---|---|---|
| 217.145.55.21 | 86400s | — | AS47292 | Sentia Denmark A/S | 217.145.48.0/21 | 🇩🇰 Denmark | — |
| TXT Record |
|---|
| v=spf1 ~all |
| Policy | Record (isolerselv.dk) |
|---|---|
| ~all (soft fail) | v=spf1 ~all |
| Policy | Record (_dmarc.isolerselv.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1;p=none;rua=mailto:2y7cn1fh@ag.eu.dmarcian.com;ruf=mailto:2y7cn1fh@fr.eu.dmarcian.com |
| www | 217.145.55.21 (AS47292) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | No |
DNS lookups: 0/10 · 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 | 2022011601 |
| Primary NS (MNAME) | ns1.markmonitor.com |
| Responsible (RNAME) | domain\@manager.rockwool.com |
| Refresh | 28800s |
| Retry | 7200s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 86400s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-09-23 17:20:23 shown | 6044ms | 7 NS 1 A 0 MX | 🔓 Insecure |
| 2026-06-25 22:19:53 | 1002ms | 7 NS 1 A 0 MX | 🔓 Insecure |
| 2026-06-22 10:42:11 | 935ms | 7 NS 1 A 0 MX | 🔓 Insecure |
| 2026-06-17 22:45:41 | 2319ms | 7 NS 1 A 0 MX | 🔓 Insecure |