horsens-sejlklub.dk is a .dk domain served by 4 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com and 1 more). It was registered on 26 April 1999 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 87.116.13.122 is hosted by GlobalConnect A/S (AS31027) 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.
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 87.116.13.122 | 1808s | s6.stom.dk | AS31027 | GlobalConnect A/S | 87.116.0.0/18 | 🇩🇰 Denmark | Copenhagen |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | dmarc.unoeuro.com |
| 🔶 Autoconfig | dmarc.unoeuro.com |
| TXT Record |
|---|
| v=spf1 ip4:87.116.13.122 +a +mx include:spf.simply.com include:spf.stom.dk include:sendgrid.net include:_spf.google.com ~all |
| Policy | Record (horsens-sejlklub.dk) |
|---|---|
| ~all (soft fail) | v=spf1 ip4:87.116.13.122 +a +mx include:spf.simply.com include:spf.stom.dk include:sendgrid.net include:_spf.google.com ~all |
| Policy | Record (_dmarc.horsens-sejlklub.dk) |
|---|---|
| p=quarantine | v=DMARC1; p=quarantine; |
| www CNAME | horsens-sejlklub.dk (all on horsens-sejlklub.dk) → 87.116.13.122 (AS31027) |
| 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) |
| Selector | CNAME | Key |
|---|---|---|
| s1 | s1.domainkey.u18179280.wl031.sendgrid.net | RSA · ~2048 bit |
| s2 | s2.domainkey.u18179280.wl031.sendgrid.net | 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: 7/10 · policy: ~all
No problems found| Type | Name | Value |
|---|---|---|
| CNAME | _acme-challenge.horsens-sejlklub.dk | dmarc.unoeuro.com |
| 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 | 2026101200 |
| Primary NS (MNAME) | ns1.simply.com |
| Responsible (RNAME) | hostmaster@simply.com |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 3600s |
| Field | Value |
|---|---|
| Registrar | Simply.com A/S |
| Registered | 1999-04-26 |
| Expires | 2027-06-30 (251d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-13 03:34:36 shown | 522ms | 4 NS 1 A 1 MX | 🔓 Insecure |
| 2026-10-08 11:40:47 | 2087ms | 4 NS 1 A 1 MX | 🔓 Insecure |
| 2026-10-01 10:11:18 | 3572ms | 4 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-30 10:02:59 | 686ms | 4 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-26 22:17:01 | 758ms | 4 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-24 18:25:50 | 962ms | 4 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-20 13:11:19 | 729ms | 4 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-17 13:35:06 | 276ms | 0 NS 0 A 0 MX | ❓ Unknown |