3s.dk is a .dk domain served by 2 nameservers (ns1.123hotel.dk, ns2.123hotel.dk). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.31.79.5 is hosted by DLX A/S (AS47527) in Denmark. Mail is handled by 3s-dk.mail.protection.outlook.com. 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.
| Nameserver | IP addresses | PTR | ASN / ISP |
|---|---|---|---|
| ns1.123hotel.dk | — | — | — |
| ns2.123hotel.dk | — | — | — |
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 185.31.79.5 | — | v4-elastic-ingress.balancer01.hyperscalemega.cloud | AS47527 | DLX A/S | 185.31.76.0/22 | 🇩🇰 Denmark | — |
| TXT Record |
|---|
| ms-domain-verification=bcc39781-7056-4451-bb08-b2185e168bba |
| ms=ms17629619 |
| v=spf1 include:spf.curanet.dk include:spf.protection.outlook.com include:_spf.powerhosting.dk a:smtpservice.vidoba.dk ip4:93.191.155.217 ip4:152.115.151.2 -all |
| Policy | Record (3s.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:spf.curanet.dk include:spf.protection.outlook.com include:_spf.powerhosting.dk a:smtpservice.vidoba.dk ip4:93.191.155.217 ip4:152.115.151.2 -all |
| Policy | Record (_dmarc.3s.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none; rua=mailto:dmarc_agg@vali.email |
| www | 185.31.79.5 (AS47527) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | Yes: any name under the zone resolves |
| Denial of existence | NSEC3 · 1 iteration · 1-byte salt RFC 9276 recommends 0 iterations and no salt |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
| Selector | CNAME | Key |
|---|---|---|
| selector1 | selector1-3s-dk._domainkey.3sasdk.onmicrosoft.com | RSA · ~1024 bit below 2048 bit |
DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.
DNS lookups: 6/10 · policy: -all
No problems found| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026060506 |
| Primary NS (MNAME) | ns1.123hotel.dk |
| Responsible (RNAME) | hostmaster@curanet.dk |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 300s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-09-30 01:37:56 | 820ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-15 19:07:06 | 1502ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-27 05:35:36 | 969ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-26 00:52:05 | 1474ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-15 08:11:38 | 6484ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-28 17:55:22 | 2047ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-24 00:38:13 | 1196ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-23 04:31:09 | 907ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-22 17:11:46 | 1022ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-16 12:43:47 shown | 1154ms | 2 NS 1 A 1 MX | 🔒 Secure |