sommeribyen.dk is a .dk domain served by 3 nameservers (ns05.sac-it.dk, ns06.sac-it.dk, ns06us.sac-it.dk). It was registered on 3 April 2017 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 217.116.232.219 is hosted by Sentia Denmark A/S (AS47292) in Denmark. Mail is handled by smtp.google.com. The zone is not DNSSEC-signed, publishes a DMARC policy and has no IPv6 address. 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.
| Nameserver | IP addresses | PTR | ASN / ISP |
|---|---|---|---|
| ns05.sac-it.dk | 85.235.255.134 | — | AS3308 Norlys Telco A/S |
| ns06.sac-it.dk | 128.76.60.134 | — | AS3292 TDC Holding A/S |
| ns06us.sac-it.dk | 72.29.91.87 | 72-29-91-87.static.hostdime.com | AS33182 HostDime.com, Inc. |
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 217.116.232.219 | 3598s | 219.giga-ptr.232.116.217.in-addr.arpa web19.gigahost.dk |
AS47292 | Sentia Denmark A/S | 217.116.224.0/20 | 🇩🇰 Denmark | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | sommeribyen.dk → 217.116.232.219 |
| 🔶 Autoconfig | sommeribyen.dk → 217.116.232.219 |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _autodiscover._tcp | 10 | 10 | 443 | autodiscover.gigahost.dk |
| TXT Record |
|---|
| google-site-verification=CX9duuYefjp5iGvcLj9WATUvx2jB5wNGyOqOydXpzSI |
| v=spf1 include:_spf.google.com ~all |
| Policy | Record (sommeribyen.dk) |
|---|---|
| ~all (soft fail) | v=spf1 include:_spf.google.com ~all |
| Policy | Record (_dmarc.sommeribyen.dk) |
|---|---|
| p=quarantine | v=DMARC1; p=quarantine; rua=mailto:dmarc.reports@rekomgroup.com; pct=100; fo=1 |
| www CNAME | sommeribyen.dk (all on sommeribyen.dk) |
| www vs bare domain | Same network |
| Wildcard | Yes: any name under the zone resolves |
| Denial of existence | NSEC zone can be walked (all names enumerable) |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
| Selector | CNAME | Key |
|---|---|---|
| — | 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: 1/10 · policy: ~all
No problems found| Type | Name | Value |
|---|---|---|
| CNAME | _acme-challenge.sommeribyen.dk | sommeribyen.dk |
| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✓ Found |
| Flags | unsigned answer |
| Field | Value |
|---|---|
| Serial | 2026040201 |
| Primary NS (MNAME) | ns05.sac-it.dk |
| Responsible (RNAME) | hostmaster@sommeribyen.dk |
| Refresh | 10800s |
| Retry | 3600s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 3600s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2017-04-03 |
| Expires | 2029-07-31 (1015d) |
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).
Showing 100 of 134.
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-09-25 09:58:43 shown | 9526ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-14 14:38:58 | 2117ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-21 10:57:13 | 663ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-20 06:25:28 | 6239ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-17 23:50:50 | 1076ms | 3 NS 1 A 1 MX | 🔓 Insecure |