cogentico.dk is a .dk domain served by 2 nameservers (kolton.ns.cloudflare.com, tina.ns.cloudflare.com). It was registered on 6 March 2026 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 216.239.32.21 is hosted by Google LLC (AS15169) in United States. Mail is handled by route3.mx.cloudflare.net, route1.mx.cloudflare.net and 1 more. The zone is not DNSSEC-signed, publishes a DMARC policy and is reachable over IPv6. 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 |
|---|---|---|---|---|---|---|---|
| 216.239.32.21 | 300s | any-in-2015.1e100.net | AS15169 | Google LLC | 216.239.32.0/20 | 🇺🇸 United States | — |
| 216.239.34.21 | 300s | any-in-2215.1e100.net | AS15169 | Google LLC | 216.239.32.0/20 | 🇺🇸 United States | — |
| 216.239.36.21 | 300s | any-in-2415.1e100.net | AS15169 | Google LLC | 216.239.32.0/20 | 🇺🇸 United States | — |
| 216.239.38.21 | 300s | any-in-2615.1e100.net | AS15169 | Google LLC | 216.239.32.0/20 | 🇺🇸 United States | — |
| TXT Record |
|---|
| google-site-verification=7WVNojhi_maeI3Sd886jHaMf6hiZb45X-n-u2_dTOrI |
| v=spf1 include:_spf.mx.cloudflare.net ~all |
| Policy | Record (cogentico.dk) |
|---|---|
| ~all (soft fail) | v=spf1 include:_spf.mx.cloudflare.net ~all |
| Policy | Record (_dmarc.cogentico.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; sp=reject; adkim=s; aspf=s; |
| www | Exists, no address |
| www vs bare domain | www does not resolve cogentico.dk: 216.239.32.21 216.239.34.21 216.239.36.21 216.239.38.21 (AS15169) (all like this)www.cogentico.dk: no address |
| Wildcard | No |
| Denial of existence | Compact NSEC (RFC 9824, "black lies") not walkable |
| CDS / CDNSKEY | Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY |
| Selector | CNAME | Key |
|---|---|---|
| default | — | Revoked (empty key) |
| dkim | — | Revoked (empty key) |
| k1 | — | Revoked (empty key) |
| — | Revoked (empty key) | |
| s1 | — | Revoked (empty key) |
| s2 | — | Revoked (empty key) |
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| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.route1.mx.cloudflare.net | DANE-TA · SPKI · SHA-256 | 59E738E674221702AF1EDB87C5200C1A… |
| SMTP _25._tcp.route1.mx.cloudflare.net | DANE-EE · SPKI · SHA-256 | 0F0C6C164A36F97E7B4C5A5B69D6F4F2… |
| SMTP _25._tcp.route1.mx.cloudflare.net | DANE-EE · SPKI · SHA-256 | 9BE5B7D47F9EFF930C11EB04D27CAE6B… |
| SMTP _25._tcp.route2.mx.cloudflare.net | DANE-TA · SPKI · SHA-256 | 59E738E674221702AF1EDB87C5200C1A… |
| SMTP _25._tcp.route2.mx.cloudflare.net | DANE-EE · SPKI · SHA-256 | 0F0C6C164A36F97E7B4C5A5B69D6F4F2… |
| SMTP _25._tcp.route2.mx.cloudflare.net | DANE-EE · SPKI · SHA-256 | 9BE5B7D47F9EFF930C11EB04D27CAE6B… |
| SMTP _25._tcp.route3.mx.cloudflare.net | DANE-EE · SPKI · SHA-256 | 0F0C6C164A36F97E7B4C5A5B69D6F4F2… |
| SMTP _25._tcp.route3.mx.cloudflare.net | DANE-EE · SPKI · SHA-256 | 9BE5B7D47F9EFF930C11EB04D27CAE6B… |
| SMTP _25._tcp.route3.mx.cloudflare.net | DANE-TA · SPKI · SHA-256 | 59E738E674221702AF1EDB87C5200C1A… |
| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✓ Found |
| Flags | unsigned answer |
| Field | Value |
|---|---|
| Serial | 2418061838 |
| Primary NS (MNAME) | kolton.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Field | Value |
|---|---|
| Registrar | DANDOMAIN A/S |
| Registered | 2026-03-06 |
| Expires | 2027-03-05 (130d) |
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).
| Domain | Registrar |
|---|---|
| archeim.dk | DANDOMAIN A/S |
| cogentia.dk | DANDOMAIN A/S |
| cogentialogic.dk | DANDOMAIN A/S |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-22 16:06:50 shown | 923ms | 2 NS 4 A 3 MX | 🔓 Insecure |
| 2026-10-12 04:34:33 | 2373ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-10-10 00:37:14 | 3908ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-10-02 13:31:05 | 916ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-09-23 20:29:03 | 950ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-09-22 08:33:58 | 3853ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-09-15 20:14:44 | 1199ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-08-27 21:02:37 | 1178ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-08-25 02:37:10 | 1326ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-08-07 03:12:54 | 10213ms | 2 NS 2 A 3 MX | ❓ Unknown |
| 2026-07-19 03:33:19 | 2573ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-07-09 02:59:33 | 10129ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-07-01 23:56:58 | 1744ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-06-16 21:41:45 | 708ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-06-16 21:40:23 | 985ms | 2 NS 2 A 3 MX | 🔓 Insecure |