esbjergskoler.dk is a .dk domain served by 2 nameservers (brit.ns.cloudflare.com, mack.ns.cloudflare.com). It was registered on 22 September 2014 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.18.28.109 is hosted by Cloudflare, Inc. (AS13335). The zone is DNSSEC-signed and validates, publishes a DMARC policy and is reachable over IPv6. 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.
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 104.18.28.109 | 300s | — | AS13335 | Cloudflare, Inc. | 104.16.0.0/14 | — | — |
| 104.18.29.109 | 300s | — | AS13335 | Cloudflare, Inc. | 104.16.0.0/14 | — | — |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700::6812:1c6d | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:0:0:0:0:0:0/43 | 🇺🇸 United States | — |
| 2606:4700::6812:1d6d | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:0:0:0:0:0:0/43 | 🇺🇸 United States | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h2" ipv4hint=104.18.28.109,104.18.29.109 ipv6hint=2606:4700::6812:1c6d,2606:4700::6812:1d6d |
| TXT Record |
|---|
| v=spf1 -all |
| Policy | Record (esbjergskoler.dk) |
|---|---|
| -all (hard fail) | v=spf1 -all |
| Policy | Record (_dmarc.esbjergskoler.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 esbjergskoler.dk: 104.18.28.109 104.18.29.109 2606:4700::6812:1c6d 2606:4700::6812:1d6d (AS13335) (all like this)www.esbjergskoler.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 |
DNS lookups: 0/10 · policy: -all
No problems found| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2417027199 |
| Primary NS (MNAME) | brit.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 | 2014-09-22 |
| Expires | 2027-09-30 (343d) |
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).
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-14 00:07:09 | 1179ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-10-12 22:52:19 | 2301ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-10-11 22:16:18 | 611ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-10-10 20:18:26 | 519ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-10-09 17:32:18 shown | 579ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-09-30 13:38:50 | 614ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-09-23 20:31:22 | 559ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-09-18 13:40:08 | 1251ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-08-27 23:46:33 | 577ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-08-23 06:59:35 | 1091ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-08-13 17:35:16 | 16839ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-08-12 12:37:47 | 3430ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-08-06 01:07:02 | 1363ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-07-23 14:31:18 | 901ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-07-08 15:01:57 | 1220ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-06-23 23:44:01 | 734ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-06-17 08:26:54 | 427ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-06-17 08:20:09 | 563ms | 2 NS 2 A 0 MX | 🔒 Secure |