sera.dk is a .dk domain served by 2 nameservers (ns.scannet2.dk, ns2.scannet2.dk). It was registered on 4 October 2002 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 93.191.155.240 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by mx.spamfilter.io. 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 |
|---|---|---|---|---|---|---|---|
| 93.191.155.240 | 60s | forward.dnsfactory.dk | AS48854 | team.blue Denmark A/S | 93.191.152.0/21 | 🇩🇰 Denmark | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscoverredirect.webexchange.nu → 212.237.249.80 |
| TXT Record |
|---|
| google-site-verification=IIM4V37kb6omcSCLAHMKrIrAm6cWvWiFmzarMWGPm9Q |
| v=spf1 include:spf.scannet.dk -all |
| Policy | Record (sera.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:spf.scannet.dk -all |
| Policy | Record (_dmarc.sera.dk) |
|---|---|
| p=quarantine | v=DMARC1; p=quarantine; ruf=mailto:sera@sera.dk |
| www | 93.191.155.240 (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: 3/10 · policy: -all
No problems found| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.mx.spamfilter.io | DANE-EE · SPKI · SHA-256 | 9A25F05F2E322DABDCC9B7A06AB47A2D… |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2024090902 |
| Primary NS (MNAME) | ns.scannet2.dk |
| Responsible (RNAME) | hostmaster@scannet.dk |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 300s |
| Field | Value |
|---|---|
| Registrar | A/S SCANNET |
| Registered | 2002-10-04 |
| Expires | 2026-12-31 (67d) |
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 |
|---|---|---|---|
| 2026-10-09 11:03:37 | 653ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-01 19:24:17 | 536ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-25 12:33:37 | 17398ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-28 12:26:51 shown | 835ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-26 08:34:33 | 1241ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-25 07:33:14 | 684ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-24 08:07:14 | 4800ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-22 23:26:25 | 911ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-18 04:30:58 | 757ms | 2 NS 1 A 1 MX | 🔒 Secure |