10u.dk is a .dk domain served by 3 nameservers (ns1.trifork.dk, ns2.trifork.dk, ns3.trifork.dk). It was registered on 10 March 2003 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 77.66.11.99 is hosted by Sentia Denmark A/S (AS47292) in Denmark. Mail is handled by mail.em-soft.dk. The zone is not DNSSEC-signed, publishes a DMARC policy and is reachable over IPv6. 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 |
|---|---|---|---|---|---|---|---|
| 77.66.11.99 | 43200s | 99.trifork.11.66.77.in-addr.arpa mail.em-soft.dk |
AS47292 | Sentia Denmark A/S | 77.66.8.0/22 | 🇩🇰 Denmark | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 43200s | mail.em-soft.dk | 2001:1448:248:2c8::200:119 77.66.11.99 77.66.11.99 |
mail.em-soft.dk 99.trifork.11.66.77.in-addr.arpa mail.em-soft.dk |
AS47292 Sentia Denmark A/S AS47292 Sentia Denmark A/S AS47292 Sentia Denmark A/S |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2001:1448:248:2c8::200:119 | 43199s | mail.em-soft.dk | AS47292 | Sentia Denmark A/S | 2001:1448:0:0:0:0:0:0/32 | 🇩🇰 Denmark | — |
| TXT Record |
|---|
| v=spf1 +mx a:em-soft.dk ip4:62.107.200.30 -all |
| Policy | Record (10u.dk) |
|---|---|
| -all (hard fail) | v=spf1 +mx a:em-soft.dk ip4:62.107.200.30 -all |
| Policy | Record (_dmarc.10u.dk) |
|---|---|
| p=quarantine | v=DMARC1; p=quarantine; sp=none; pct=100; fo=1; rua=mailto:a670dd467639663@rep.dmarcanalyzer.com,mailto:dmarc@em-soft.dk; ruf=mailto:dmarc@em-soft.dk; |
| www | 77.66.11.99 2001:1448:248:2c8::200:119 (AS47292) (address records, no CNAME) |
| www vs bare domain | Same network 10u.dk: 77.66.11.99 2001:1448:248:2c8::200:119 (AS47292) www.10u.dk: 77.66.11.99 2001:1448:248:2c8::200:119 (AS47292) |
| Wildcard | No |
DNS lookups: 2/10 · policy: -all
No problems found| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.mail.em-soft.dk | DANE-TA · Full cert · SHA-256 | 2021917E98263945C859C43F1D73CB41… |
| SMTP _25._tcp.mail.em-soft.dk | DANE-EE · SPKI · SHA-256 | B4F48F0A02784E3A0B4A97ED5638F56E… |
| 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 | 2019112801 |
| Primary NS (MNAME) | ns1.trifork.dk |
| Responsible (RNAME) | hostmaster@em-soft.dk |
| Refresh | 28800s |
| Retry | 7200s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 21600s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2003-03-10 |
| Expires | 2031-03-31 (1626d) |
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).
| Domain | Registrar |
|---|---|
| bredekaeret.dk | Punktum dk A/S (direct) |
| erpomik.dk | Punktum dk A/S (direct) |
| susand.dk | Punktum dk A/S (direct) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-09-25 09:32:51 shown | 1447ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-22 22:50:05 | 1033ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-16 12:33:53 | 1311ms | 3 NS 1 A 1 MX | 🔓 Insecure |