sisden.dk is a .dk domain served by 2 nameservers (ns1.messagingengine.com, ns2.messagingengine.com). It was registered on 15 September 2010 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by in1-smtp.messagingengine.com, in2-smtp.messagingengine.com. The zone is not DNSSEC-signed, 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.
| Nameserver | IP addresses | PTR | ASN / ISP |
|---|---|---|---|
| ns1.messagingengine.com | 162.159.24.178 | ns1.messagingengine.com | AS13335 Cloudflare, Inc. |
| ns2.messagingengine.com | 162.159.25.191 | ns2.messagingengine.com | AS13335 Cloudflare, Inc. |
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 103.168.172.37 | — | www.messagingengine.com | AS151847 | — | — | — | — |
| 103.168.172.52 | — | www.messagingengine.com | AS151847 | — | — | — | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 103.168.172.52 |
| 🔶 Autoconfig | 103.168.172.37 |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _autodiscover._tcp | 0 | 1 | 443 | autodiscover.fastmail.com |
| _imaps._tcp | 0 | 1 | 993 | imap.fastmail.com |
| TXT Record |
|---|
| v=spf1 include:spf.messagingengine.com ?all |
| Policy | Record (sisden.dk) |
|---|---|
| ?all (neutral) | v=spf1 include:spf.messagingengine.com ?all |
| Policy | Record (_dmarc.sisden.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none; |
| www | 103.168.172.37 103.168.172.52 (AS151847) (address records, no CNAME) |
| www vs bare domain | Same network sisden.dk: 103.168.172.37 103.168.172.52 (AS151847) www.sisden.dk: 103.168.172.37 103.168.172.52 (AS151847) |
| Wildcard | Yes: any name under the zone resolves |
DNS lookups: 1/10 · policy: ?all
| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✗ Not found |
| Flags | unsigned answer |
| Field | Value |
|---|---|
| Serial | 2026060400 |
| Primary NS (MNAME) | ns1.messagingengine.com |
| Responsible (RNAME) | postmaster@messagingengine.com |
| Refresh | 86247s |
| Retry | 600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 3600s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2010-09-15 |
| Expires | 2027-09-30 (346d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-12 14:58:41 | 2518ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-10-07 07:58:49 | 2868ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-10-04 05:04:33 | 2269ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-10-01 04:55:02 | 2206ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-09-26 16:15:53 | 10427ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-09-18 21:32:44 | 2161ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-09-09 05:28:23 | 3007ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-09-04 10:33:45 | 1803ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-08-26 09:54:24 | 3076ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-08-07 07:41:59 | 33451ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-08-05 05:02:43 | 3667ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-07-06 01:44:24 | 2351ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-07-03 10:05:31 | 7296ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-06-28 14:15:22 | 3687ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-06-22 02:42:17 | 1451ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-06-18 02:42:06 shown | 1955ms | 2 NS 2 A 2 MX | 🔓 Insecure |