jernsoe.dk is a .dk domain served by 2 nameservers (ns1.jth.net, ns4.jth.net). It was registered on 8 October 2001 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 176.20.235.218 is hosted by TDC Holding A/S (AS3292) in Denmark. Mail is handled by mail.jernsoe.dk. 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.
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 176.20.235.218 | 60s | 176-20-235-218-static.dk.customer.tdc.net | AS3292 | TDC Holding A/S | 176.20.224.0/19 | 🇩🇰 Denmark | Kolding |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 60s | mail.jernsoe.dk | 176.20.235.218 | 176-20-235-218-static.dk.customer.tdc.net | AS3292 TDC Holding A/S |
| 20 | 60s | mail.jernsoe.dk | 176.20.235.218 | 176-20-235-218-static.dk.customer.tdc.net | AS3292 TDC Holding A/S |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 176.20.235.218 |
| 🔶 Autoconfig | 176.20.235.218 |
| TXT Record |
|---|
| v=spf1 mx a -all |
| Policy | Record (jernsoe.dk) |
|---|---|
| -all (hard fail) | v=spf1 mx a -all |
| Policy | Record (_dmarc.jernsoe.dk) |
|---|---|
| p=quarantine | v=DMARC1;p=quarantine;pct=100;adkim=r;aspf=r;rua=mailto:dmarc@jernsoe.dk;ri=86400;fo=0:1:d:s |
| www | 176.20.235.218 (AS3292) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | Yes: any name under the zone resolves |
| Denial of existence | NSEC zone can be walked (all names enumerable) |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
| BIMI | v=BIMI1;l=;a= |
| Selector | CNAME | Key |
|---|---|---|
| — | 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: 2/10 · policy: -all
No problems found| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2012033813 |
| Primary NS (MNAME) | ns1.jth.net |
| Responsible (RNAME) | hostmaster@jth.net |
| Refresh | 86400s |
| Retry | 3600s |
| Expire | 2419200s |
| Minimum (neg-cache TTL) | 180s |
| Field | Value |
|---|---|
| Registrar | dns.services ApS |
| Registered | 2001-10-08 |
| Expires | 2027-12-31 (438d) |
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 |
|---|---|---|---|
| 2026-10-15 00:17:13 | 1178ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-10-07 01:45:17 | 8382ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-10-05 22:53:19 | 8403ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-10-02 22:39:46 | 25282ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-10-01 22:37:36 | 25300ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-30 22:27:24 | 25194ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-27 21:50:49 shown | 25067ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-26 21:33:49 | 25488ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-25 21:05:33 | 27466ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-23 20:07:49 | 25436ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-20 22:00:32 | 25214ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-14 13:00:32 | 11082ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-06 10:35:19 | 25336ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-03 20:36:49 | 25143ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-27 22:14:02 | 24888ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-26 21:08:44 | 25007ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-25 02:42:28 | 10445ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-22 23:03:53 | 25498ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-18 21:18:17 | 13866ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-17 20:18:20 | 11868ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-16 14:40:57 | 12660ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-14 08:09:09 | 8977ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-10 07:32:26 | 10842ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-08 02:42:57 | 9070ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-07-30 20:51:35 | 8873ms | 2 NS 1 A 2 MX | 🔒 Secure |