butlerjensen.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 30 December 2010 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 85.83.71.92 is hosted by Telenor A/S (AS9158) in Denmark. Mail is handled by aspmx.l.google.com, alt1.aspmx.l.google.com and 5 more. The zone is DNSSEC-signed and validates, has no 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 |
|---|---|---|---|---|---|---|---|
| 85.83.71.92 | 43200s | — | AS9158 | Telenor A/S | 85.80.0.0/14 | 🇩🇰 Denmark | Vestbjerg |
| www | 77.68.144.146 (AS39642) (address records, no CNAME) |
| www vs bare domain | Same network |
| 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 |
|---|---|---|
| dkim | — | 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 | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026081101 |
| 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 | Simply.com A/S |
| Registered | 2010-12-30 |
| Expires | 2026-12-31 (68d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-12 16:07:45 | 1243ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-10-04 16:01:42 | 354ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-10 14:18:47 | 859ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-03 19:46:23 | 522ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-02 10:52:33 | 9430ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-31 16:32:04 | 1093ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-26 12:34:14 | 1132ms | 2 NS 1 A 7 MX | 🔒 Secure |
| 2026-08-11 12:56:19 shown | 6449ms | 2 NS 1 A 7 MX | 🔒 Secure |
| 2026-07-17 16:30:00 | 1160ms | 2 NS 1 A 7 MX | 🔒 Secure |
| 2026-07-15 13:43:42 | 1144ms | 2 NS 1 A 7 MX | 🔒 Secure |
| 2026-06-16 17:55:05 | 820ms | 2 NS 1 A 7 MX | 🔒 Secure |