21centuryskills.dk

📜 Historical scan 2026-07-23 10:18:50 · ← Latest scan

🧟 Lame delegation ⬇ Zone File 📜 Timeline & History ⚡ Scan Now

21centuryskills.dk is a registered .dk domain whose nameservers (ns.dandomain.dk, ns2.dandomain.dk) do not answer for it, so it is currently a lame delegation and does not resolve. It was registered on 28 February 2019 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. 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.

🖥️ Nameservers#

2 records 38ms

Nameserver	IP addresses	PTR	ASN / ISP
ns.dandomain.dk	185.25.141.3 2a02:2339:4006:109::dd	ns.dandomain.dk ns.dandomain.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.dandomain.dk	2a02:2339:1:108::dd:dd 91.197.248.66	ns2.dandomain.dk ns2.dandomain.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S

🌍 A Records#

🌍

No A records found

📧 MX Records#

📧

No MX records found

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

📝

No TXT records found

✉️ SPF#

✗ No SPF record — mail spoofing not restricted

📨 DMARC#

✗ No DMARC record — mail spoofing not restricted

📬 MTA-STS#

✗ No MTA-STS policy — SMTP TLS not enforced

📈 TLSRPT#

✗ No TLSRPT record — no SMTP TLS failure reporting

📜 CAA Records#

✗ No CAA records — any CA may issue certificates

🔗 TLSA / DANE#

✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)

🔐 DNSSEC#

357ms

Check	Result
Validation Status	⚠️ Bogus — the parent still publishes a DS record, but the delegated nameservers don't answer, so no signed answer can be fetched. The zone isn't serving broken signatures; it isn't serving at all.
AD Flag (resolver validates)	✗ Not set
DS Record	✓ Found
DNSKEY Record	✗ Not found
Flags	resolution failed: failure

🏷️ SOA#

✗ No SOA record found

📋 Registration#

WHOIS fetched 2026-10-06 17:18:39

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2019-02-28
Expires	2027-02-28 (129d)

📋 WHOIS#

⏱️ Lookup Timing#

38ms

86ms

337ms

AAAA

318ms

TXT

499ms

CAA

326ms

HTTPS

316ms

TLSA

120ms

SOA

34ms

MTA-STS

153ms

DNSSEC

357ms

SRV

367ms

Total

1333ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-30 21:02:48	949ms	2 NS 0 A 0 MX	⚠️ Bogus
2026-09-24 05:42:10	9857ms	2 NS 0 A 0 MX	⚠️ Bogus
2026-08-31 12:44:06	9844ms	2 NS 0 A 0 MX	⚠️ Bogus
2026-08-23 20:46:42	3153ms	2 NS 0 A 0 MX	⚠️ Bogus
2026-08-22 19:18:38	5450ms	2 NS 0 A 0 MX	⚠️ Bogus
2026-08-21 19:16:18	2914ms	2 NS 0 A 0 MX	⚠️ Bogus
2026-08-20 19:00:30	4530ms	2 NS 0 A 0 MX	⚠️ Bogus
2026-08-19 18:16:14	1186ms	2 NS 0 A 0 MX	⚠️ Bogus
2026-08-18 18:11:56	2651ms	2 NS 0 A 0 MX	⚠️ Bogus
2026-08-17 10:26:57	1157ms	2 NS 0 A 0 MX	⚠️ Bogus
2026-08-15 00:12:31	1075ms	2 NS 0 A 0 MX	⚠️ Bogus
2026-08-13 00:10:08	4458ms	2 NS 0 A 0 MX	⚠️ Bogus
2026-08-11 17:04:56	2850ms	2 NS 0 A 0 MX	⚠️ Bogus
2026-08-09 15:21:45	2520ms	2 NS 0 A 0 MX	⚠️ Bogus
2026-08-04 09:02:16	3375ms	2 NS 0 A 0 MX	⚠️ Bogus
2026-07-27 17:52:55	9884ms	2 NS 0 A 0 MX	⚠️ Bogus
2026-07-26 17:22:36	9887ms	2 NS 0 A 0 MX	⚠️ Bogus
2026-07-25 17:13:09	1329ms	2 NS 0 A 0 MX	⚠️ Bogus
2026-07-24 16:38:25	1165ms	2 NS 0 A 0 MX	⚠️ Bogus
2026-07-23 10:18:50 shown	1333ms	2 NS 0 A 0 MX	⚠️ Bogus
2026-07-22 09:28:50	9874ms	2 NS 0 A 0 MX	⚠️ Bogus
2026-07-21 07:06:41	12903ms	2 NS 0 A 0 MX	⚠️ Bogus
2026-07-19 20:51:05	9237ms	2 NS 0 A 0 MX	⚠️ Bogus
2026-07-18 15:52:45	2895ms	2 NS 0 A 0 MX	⚠️ Bogus
2026-07-17 15:15:58	1647ms	2 NS 0 A 0 MX	⚠️ Bogus