cerix.dk is a .dk domain served by 2 nameservers (ns1.wannafind.dk, ns2.wannafind.dk). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 188.40.66.164 is hosted by Hetzner Online GmbH (AS24940) in Germany. Mail is handled by cerix-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.wannafind.dk | — | — | — |
| ns2.wannafind.dk | — | — | — |
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 188.40.66.164 | — | server.cerix.dk | AS24940 | Hetzner Online GmbH | 188.40.0.0/16 | 🇩🇪 Germany | Falkenstein |
| TXT Record |
|---|
| apple-domain-verification=c9cmv9PPcNXRy5Jc |
| google-site-verification=2DjG08OLfQxPedUZSUEE5pfECKA2xUXNWwAgIE7QiH4 |
| google-site-verification=8y42LQATBOkirqwZPXoruJ-1_NWfJo6xtU2AXYUgswQ |
| google-site-verification=ATr8EUPattpjk0DyNnAX2Ii6LoI710fKAeG3SrQZzy0 |
| google-site-verification=UkqcmAIZ4ty1ytNchomDPjWJWpH7Z8DEnUEPyYLqwhs |
| MS=ms11660179 |
| v=spf1 ip4:130.185.143.230 ip4:13.81.106.157 ip4:188.40.66.164 include:spf_1.cerix.dk include:spf.wannafind.dk include:spf.protection.outlook.com include:_spf.amocrmmail.com include:sendgrid.net ~all |
| Policy | Record (cerix.dk) |
|---|---|
| ~all (soft fail) | v=spf1 ip4:130.185.143.230 ip4:13.81.106.157 ip4:188.40.66.164 include:spf_1.cerix.dk include:spf.wannafind.dk include:spf.protection.outlook.com include:_spf.amocrmmail.com include:sendgrid.net ~all |
| Policy | Record (_dmarc.cerix.dk) |
|---|---|
| p=reject | v=DMARC1;p=reject; rua=mailto:dmarc_agg@vali.email,mailto:valimail@cerix.dk; |
| www | 188.40.66.164 (AS24940) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | No |
| 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 |
|---|---|---|
| s1 | s1.domainkey.u2534942.wl193.sendgrid.net | RSA · ~2048 bit |
| s2 | s2.domainkey.u2534942.wl193.sendgrid.net | RSA · ~1024 bit below 2048 bit |
| selector1 | selector1-cerix-dk._domainkey.cerix.onmicrosoft.com | RSA · ~2048 bit |
| selector2 | selector2-cerix-dk._domainkey.cerix.onmicrosoft.com | 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: 8/10 · policy: ~all
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026021601 |
| Primary NS (MNAME) | ns1.wannafind.dk |
| Responsible (RNAME) | hostmaster@wannafind.dk |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 300s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-16 01:44:29 | 902ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-13 23:37:11 | 2209ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-01 08:21:46 | 946ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-16 09:55:32 | 1991ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-28 08:50:29 | 673ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-01 07:37:50 | 1332ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-22 19:15:30 | 1594ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-21 17:31:24 | 1184ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-16 20:10:52 shown | 697ms | 2 NS 1 A 1 MX | 🔒 Secure |