tybo-vinduespolering.dk is a .dk domain served by 4 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com and 1 more). It was registered on 7 October 2020 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by aspmx.l.google.com, smtp.google.com and 5 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 this scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.
| TXT Record |
|---|
| v=spf1 include:_spf.google.com include:secure.skvizbiz.dk include:spf.simply.com -all |
| Policy | Record (tybo-vinduespolering.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:_spf.google.com include:secure.skvizbiz.dk include:spf.simply.com -all |
| Policy | Record (_dmarc.tybo-vinduespolering.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; rua=mailto:dmarc@tybo-vinduespolering.dk; |
| www CNAME | ghs.googlehosted.com (all on googlehosted.com) |
| www vs bare domain | Only www resolves tybo-vinduespolering.dk: no address (all like this)www.tybo-vinduespolering.dk: 142.251.143.147 2a00:1450:400f:802::2013 (AS15169) |
| Wildcard | No |
| Denial of existence | NSEC zone can be walked (all names enumerable) |
| CDS / CDNSKEY | Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY |
| Selector | CNAME | Key |
|---|---|---|
| — | 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.
DNS lookups: 3/10 · policy: -all
No problems found| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | resolution failed: ncache nxrrset |
| Field | Value |
|---|---|
| Serial | 2026030900 |
| Primary NS (MNAME) | ns1.simply.com |
| Responsible (RNAME) | hostmaster@simply.com |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 3600s |
| Field | Value |
|---|---|
| Registrar | Simply.com A/S |
| Registered | 2020-10-07 |
| Expires | 2026-10-31 (12d) |
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).
No other domain with this registrant in our WHOIS data yet| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-13 10:20:48 | 939ms | 4 NS 0 A 7 MX | 🔒 Secure |
| 2026-10-03 01:57:50 | 558ms | 4 NS 0 A 7 MX | 🔒 Secure |
| 2026-10-01 22:36:22 | 1325ms | 4 NS 0 A 7 MX | 🔒 Secure |
| 2026-09-30 22:29:07 shown | 951ms | 4 NS 0 A 7 MX | 🔒 Secure |
| 2026-09-25 22:58:51 | 806ms | 4 NS 0 A 7 MX | 🔒 Secure |
| 2026-09-01 06:39:18 | 1432ms | 4 NS 0 A 7 MX | 🔒 Secure |
| 2026-07-04 13:54:17 | 10542ms | 4 NS 0 A 7 MX | 🔒 Secure |
| 2026-06-24 06:05:29 | 930ms | 4 NS 0 A 7 MX | ⚠️ Bogus |
| 2026-06-22 19:19:54 | 1161ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-21 21:24:54 | 907ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-17 18:27:34 | 1108ms | 4 NS 0 A 7 MX | 🔒 Secure |