holdkursen.dk

📜 Historical scan 2026-08-16 12:22:58 · ← Latest scan

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

holdkursen.dk is a registered .dk domain whose nameservers (ns1.netfirms.com, ns2.netfirms.com) do not answer for it, so it is currently a lame delegation and does not resolve. It was registered on 17 May 2012 (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 1916ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.netfirms.com	162.159.24.252	—	AS13335 Cloudflare, Inc.
ns2.netfirms.com	162.159.25.208	—	AS13335 Cloudflare, Inc.

🌍 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#

10086ms

Check	Result
Validation Status	❓ Unknown (the delegated nameservers don't answer)
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	resolution failed: timed out

🏷️ SOA#

✗ No SOA record found

📋 Registration#

WHOIS fetched 2026-10-10 20:27:08

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2012-05-17
Expires	2027-05-31 (217d)

📋 WHOIS#

⏱️ Lookup Timing#

1916ms

1901ms

1938ms

AAAA

1878ms

TXT

15462ms

CAA

2054ms

HTTPS

2037ms

TLSA

3813ms

SOA

45ms

MTA-STS

3835ms

DNSSEC

10086ms

SRV

4037ms

Total

24737ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-02 19:01:35	4552ms	2 NS 0 A 0 MX	❓ Unknown
2026-09-30 12:35:55	4289ms	2 NS 0 A 0 MX	❓ Unknown
2026-09-10 05:46:31	4342ms	2 NS 0 A 0 MX	❓ Unknown
2026-08-26 06:44:38	4394ms	2 NS 0 A 0 MX	❓ Unknown
2026-08-23 17:49:50	2776ms	2 NS 0 A 0 MX	❓ Unknown
2026-08-22 16:09:21	3464ms	2 NS 0 A 0 MX	❓ Unknown
2026-08-21 15:43:39	4607ms	2 NS 0 A 0 MX	❓ Unknown
2026-08-20 15:29:08	4744ms	2 NS 0 A 0 MX	❓ Unknown
2026-08-19 12:15:58	17756ms	2 NS 0 A 0 MX	❓ Unknown
2026-08-18 12:06:16	20804ms	2 NS 0 A 0 MX	❓ Unknown
2026-08-16 12:22:58 shown	24737ms	2 NS 0 A 0 MX	❓ Unknown
2026-08-15 09:30:55	4089ms	2 NS 0 A 0 MX	❓ Unknown
2026-08-12 17:25:14	23334ms	2 NS 0 A 0 MX	❓ Unknown
2026-08-11 05:04:12	25089ms	2 NS 0 A 0 MX	❓ Unknown
2026-08-10 03:24:15	22901ms	2 NS 0 A 0 MX	❓ Unknown
2026-08-07 14:59:18	10527ms	2 NS 0 A 0 MX	❓ Unknown
2026-08-06 09:10:37	5297ms	2 NS 0 A 0 MX	❓ Unknown
2026-07-30 07:34:18	38112ms	2 NS 0 A 0 MX	❓ Unknown
2026-07-28 04:42:19	32137ms	2 NS 0 A 0 MX	❓ Unknown
2026-07-27 04:31:29	4857ms	2 NS 0 A 0 MX	❓ Unknown
2026-07-26 04:14:16	5836ms	2 NS 0 A 0 MX	❓ Unknown
2026-07-25 03:40:53	5284ms	2 NS 0 A 0 MX	❓ Unknown
2026-07-24 03:08:10	12917ms	2 NS 0 A 0 MX	❓ Unknown
2026-07-23 00:14:45	4462ms	2 NS 0 A 0 MX	❓ Unknown
2026-07-20 22:10:26	5406ms	2 NS 0 A 0 MX	❓ Unknown