dueholms-gulvafslibning.dk is a .dk domain served by 2 nameservers (gabriella.ns.cloudflare.com, mitch.ns.cloudflare.com). It was registered on 15 May 2012 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.21.41.130 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by mailb1.surf-town.net. 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 |
|---|---|---|---|---|---|---|---|
| 185.21.41.130 | 300s | linux102.curanet.dk | AS48854 | team.blue Denmark A/S | 185.21.40.0/22 | 🇩🇰 Denmark | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 300s | mailb1.surf-town.net | 212.97.132.221 | — | AS48854 team.blue Denmark A/S |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 172.67.188.248 |
| Policy | Record (_dmarc.dueholms-gulvafslibning.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none; |
| www | 104.21.65.67 172.67.188.248 2a06:98c1:3120::1 2a06:98c1:3121::1 (AS13335) (address records, no CNAME) |
| www vs bare domain | Different networks dueholms-gulvafslibning.dk: 185.21.41.130 (AS48854) (all like this)www.dueholms-gulvafslibning.dk: 104.21.65.67 172.67.188.248 2a06:98c1:3120::1 2a06:98c1:3121::1 (AS13335) |
| Wildcard | No |
| Selector | CNAME | Key |
|---|---|---|
| s1 | s1.domainkey.u42085828.wl079.sendgrid.net | RSA · ~2048 bit |
| s2 | s2.domainkey.u42085828.wl079.sendgrid.net | RSA · ~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.
| 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 | 2411702729 |
| Primary NS (MNAME) | gabriella.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2012-05-15 |
| Expires | 2027-05-31 (218d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-07 22:08:23 | 4756ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-25 19:00:32 | 16592ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-24 18:36:11 | 16776ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-19 17:11:47 | 5060ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-10 01:15:00 | 16631ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-04 16:37:22 | 16470ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-02 02:01:05 | 4829ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-30 00:11:09 | 16468ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-26 15:07:36 | 16493ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-22 20:28:24 | 10624ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-19 19:10:12 | 4942ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-10 04:38:00 shown | 5184ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-26 16:41:29 | 5350ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-22 02:27:28 | 5157ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-21 21:35:10 | 1186ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-20 17:36:47 | 4797ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-17 04:55:36 | 1563ms | 2 NS 1 A 1 MX | 🔓 Insecure |