dfi-geisler.dk is a .dk domain served by 2 nameservers (ns1.dnshost.net, ns2.dnshost.net). It was registered on 5 December 2006 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.157.223.250 is hosted by Glesys AB (AS42708) in Sweden. Mail is handled by eu-esec-01.heimdalsecurity.com, eu-esec-02.heimdalsecurity.com. 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 |
|---|---|---|---|---|---|---|---|
| 185.157.223.250 | 120s | redirects.domainname.systems | AS42708 | Glesys AB | 185.157.220.0/22 | 🇸🇪 Sweden | Falkenberg |
| TXT Record |
|---|
| MS=ms42151837 |
| v=spf1 mx mx:exc.dfi-as.dk mx:mail.dfi-geisler.dk include:spf.protection.outlook.com include:spf-esec.heimdalsecurity.com -all |
| Policy | Record (dfi-geisler.dk) |
|---|---|
| -all (hard fail) | v=spf1 mx mx:exc.dfi-as.dk mx:mail.dfi-geisler.dk include:spf.protection.outlook.com include:spf-esec.heimdalsecurity.com -all |
| www | 185.157.223.250 (AS42708) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | No |
| Denial of existence | NSEC3 · 0 iterations · no salt RFC 9276 ✓ |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
DNS lookups: 5/10 · policy: -all
No problems found| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.eu-esec-01.heimdalsecurity.com | DANE-EE · SPKI · SHA-256 | 2E8933DD6DB99304A5A9D5C4ECDE7B8E… |
| SMTP _25._tcp.eu-esec-02.heimdalsecurity.com | DANE-EE · SPKI · SHA-256 | 2E8933DD6DB99304A5A9D5C4ECDE7B8E… |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 1749129872 |
| Primary NS (MNAME) | ns1.dnshost.net |
| Responsible (RNAME) | zonemaster\@dnshost@net |
| Refresh | 43200s |
| Retry | 3600s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 3600s |
| Field | Value |
|---|---|
| Registrar | Name SRS AB |
| Registered | 2006-12-05 |
| Expires | 2026-12-31 (71d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-15 14:14:16 | 500ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-10-08 03:00:25 | 2391ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-10-02 01:04:12 shown | 610ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-27 00:15:29 | 728ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-24 05:16:21 | 830ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-17 18:31:59 | 1022ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-11 03:51:46 | 905ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-04 08:26:40 | 586ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-27 18:51:19 | 807ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-25 17:56:00 | 968ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-20 12:03:15 | 1099ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-13 23:25:54 | 10197ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-09 06:52:40 | 1476ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-02 03:33:58 | 1345ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-07-23 23:03:20 | 981ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-07-16 20:28:49 | 1034ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-07-09 14:00:40 | 9226ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-07-03 19:07:33 | 5432ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-27 05:58:39 | 806ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-26 00:45:20 | 854ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-20 19:59:07 | 650ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-17 02:35:48 | 766ms | 2 NS 1 A 2 MX | 🔒 Secure |