gregersen-tm.dk is a .dk domain served by 2 nameservers (ns1.curanet.dk, ns2.curanet.dk). It was registered on 5 October 2022 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.21.40.18 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by mx.simply.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 our latest 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 |
|---|---|---|---|---|---|---|---|
| 185.21.40.18 | 3600s | vm1373.enterprisecloud.nu | AS48854 | team.blue Denmark A/S | 185.21.40.0/22 | 🇩🇰 Denmark | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 3600s | mx.simply.com | 94.231.106.20 | mx.simply.com | AS48854 team.blue Denmark A/S |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | maildiscover.simply.com → 94.231.108.222 |
| TXT Record |
|---|
| v=spf1 a mx include:spf.curanet.dk include:spf.simply.com include:web.shared.mysmtp.com ~all |
| Policy | Record (gregersen-tm.dk) |
|---|---|
| ~all (soft fail) | v=spf1 a mx include:spf.curanet.dk include:spf.simply.com include:web.shared.mysmtp.com ~all |
| www | 185.21.40.18 (AS48854) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | No |
| Denial of existence | NSEC3 · 1 iteration · 1-byte salt RFC 9276 recommends 0 iterations and no salt |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
DNS lookups: 10/10 · policy: ~all
| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.mx.simply.com | DANE-EE · SPKI · SHA-256 | 4B949F05A63FED95FC94B3A83DD70167… |
| SMTP _25._tcp.mx.simply.com | DANE-EE · SPKI · SHA-256 | A9D603AF4D7ED6B9246B4B68500CD6F2… |
| SMTP _25._tcp.mx.simply.com | DANE-EE · SPKI · SHA-256 | 97A3BA009F39C761BFFB6574340E8138… |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2025012001 |
| Primary NS (MNAME) | ns1.curanet.dk |
| Responsible (RNAME) | hostmaster@curanet.dk |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 300s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2022-10-05 |
| Expires | 2027-10-04 (342d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-07 14:47:38 shown | 317ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-07 00:27:05 | 106ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-10-05 21:29:52 | 776ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-09-30 21:11:22 | 391ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-26 15:05:51 | 562ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-28 01:24:03 | 611ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-20 17:18:25 | 848ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-20 00:11:41 | 2404ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-19 20:56:43 | 4293ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-17 10:05:50 | 688ms | 2 NS 1 A 1 MX | 🔒 Secure |