dentakurser.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 15 August 2022 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 198.202.211.1 is hosted by Cloudflare London, LLC (AS209242) in United States. Mail is handled by aspmx.l.google.com, alt1.aspmx.l.google.com and 3 more. The zone is DNSSEC-signed but currently fails validation, 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 |
|---|---|---|---|
| ns01.one.com | — | — | — |
| ns02.one.com | — | — | — |
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 198.202.211.1 | — | — | AS209242 | Cloudflare London, LLC | 198.202.211.0/24 | 🇺🇸 United States | — |
| TXT Record |
|---|
| brevo-code:3940962a43e06c8110813baea0739acc |
| google-site-verification=5s9qmr0vBLIlFfXKfpuXr86V-0oJssIlL7UNPG7PRU8 |
| google-site-verification=96hj6hRvZtVQORjqdIXeNHaJUHl7pZC-sluqPaXqWm8 |
| mandrill_verify.JI5Jpb6htBOJbvE62JzPHA |
| proxy-ssl.webflow.com |
| v=spf1 include:spf.mandrillapp.com ?all |
| Policy | Record (dentakurser.dk) |
|---|---|
| ?all (neutral) | v=spf1 include:spf.mandrillapp.com ?all |
| Policy | Record (_dmarc.dentakurser.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none |
| www CNAME | cdn.webflow.com (all on webflow.com) |
| www vs bare domain | Same network dentakurser.dk: 198.202.211.1 (AS209242) www.dentakurser.dk: 198.202.211.1 2620:cb:2000::1 (AS13335 AS209242) |
| Wildcard | No |
| Denial of existence | NSEC3 · 0 iterations · no salt RFC 9276 ✓ |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
| Selector | CNAME | Key |
|---|---|---|
| — | 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: 1/10 · policy: ?all
| Check | Result |
|---|---|
| Validation Status | ⚠️ Bogus |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | broken trust chain resolving 'dentakurser.dk/DNSKEY/IN': 127.0.0.1#53 |
| Field | Value |
|---|---|
| Serial | 2026011901 |
| Primary NS (MNAME) | ns01.one.com |
| Responsible (RNAME) | hostmaster@one.com |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 600s |
| Field | Value |
|---|---|
| Registrar | ONE.COM A/S |
| Registered | 2022-08-15 |
| Expires | 2027-08-14 (294d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-12 20:02:12 | 1111ms | 2 NS 1 A 5 MX | 🔒 Secure |
| 2026-10-07 06:24:06 | 2149ms | 2 NS 1 A 5 MX | 🔒 Secure |
| 2026-07-19 12:42:04 | 2275ms | 2 NS 1 A 5 MX | 🔒 Secure |
| 2026-06-29 20:37:46 | 1430ms | 2 NS 1 A 5 MX | 🔒 Secure |
| 2026-06-20 05:50:52 | 819ms | 2 NS 1 A 5 MX | 🔒 Secure |
| 2026-06-17 03:30:47 | 58294ms | 2 NS 1 A 5 MX | 🔒 Secure |
| 2026-06-17 02:24:38 | 6044ms | 2 NS 1 A 5 MX | ⚠️ Bogus |
| 2026-06-17 02:04:47 shown | 1617ms | 2 NS 1 A 5 MX | ⚠️ Bogus |
| 2026-06-17 02:00:56 | 676ms | 2 NS 1 A 5 MX | 🔒 Secure |