15-3.dk is a .dk domain served by 3 nameservers (ns5.chosting.dk, ns6.chosting.dk, ns7.chosting.dk). It was registered on 17 November 2014 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 178.20.216.113 is hosted by Atea A/S (AS21060) in Denmark. Mail is handled by 15-3.dk. The zone is DNSSEC-signed and validates, publishes a DMARC policy and is reachable over IPv6. 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 |
|---|---|---|---|---|---|---|---|
| 178.20.216.113 | 14400s | server13.chosting.dk | AS21060 | Atea A/S | 178.20.216.0/23 | 🇩🇰 Denmark | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 0 | 14400s | 15-3.dk | 178.20.216.113 2a01:7cc0:101:ffff::1:11 |
server13.chosting.dk — |
AS21060 Atea A/S AS21060 Atea A/S |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 178.20.216.113 |
| 🔶 Autoconfig | 178.20.216.113 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2a01:7cc0:101:ffff::1:11 | 14400s | — | AS21060 | Atea A/S | 2a01:7cc0:100:0:0:0:0:0/40 | 🇩🇰 Denmark | — |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _autodiscover._tcp | 0 | 0 | 443 | cpanelemaildiscovery.cpanel.net |
| TXT Record |
|---|
| google-site-verification=dZgNWkj9LZ4suQJ-1h5YehjNPuwrdIuRlZwRBIz4Qeg |
| v=spf1 ip4:178.20.216.113 include:spf.chosting.dk ip4:178.20.216.114 ~all |
| Policy | Record (15-3.dk) |
|---|---|
| ~all (soft fail) | v=spf1 ip4:178.20.216.113 include:spf.chosting.dk ip4:178.20.216.114 ~all |
| Policy | Record (_dmarc.15-3.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none |
| www CNAME | 15-3.dk (all on 15-3.dk) |
| www vs bare domain | Same network 15-3.dk: 178.20.216.113 2a01:7cc0:101:ffff::1:11 (AS21060) www.15-3.dk: 178.20.216.113 2a01:7cc0:101:ffff::1:11 (AS21060) |
| Wildcard | No |
| Denial of existence | NSEC3 · 7 iterations · 8-byte salt RFC 9276 recommends 0 iterations and no salt |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
| Selector | CNAME | Key |
|---|---|---|
| default | — | RSA · ~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: 3/10 · policy: ~all
No problems found| Type | Name | Value |
|---|---|---|
| TXT | _acme-challenge.15-3.dk | C4obiUkqmKXdZ_MbNOafBBpqgKbpsgmfW0lyqvZyZSM |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026051001 |
| Primary NS (MNAME) | ns5.chosting.dk |
| Responsible (RNAME) | logs@chosting.dk |
| Refresh | 3600s |
| Retry | 1800s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 86400s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2014-11-17 |
| Expires | 2026-11-30 (44d) |
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 |
|---|---|---|---|
| 2026-09-30 23:23:16 | 750ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-15 21:29:13 | 1698ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-26 15:20:28 | 1021ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-10 21:48:02 | 1282ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-02 18:12:45 | 832ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-02 17:38:16 | 2652ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-24 14:52:14 shown | 2157ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-16 12:38:13 | 2639ms | 3 NS 1 A 1 MX | 🔒 Secure |