sejlerakademi.dk

📜 Historical scan 2026-10-09 06:29:28 · ← Latest scan

🚫 Deactivated by the registry ⬇ Zone File 📜 Timeline & History ⚡ Scan Now

sejlerakademi.dk is a .dk domain the registry has taken out of service: it is delegated to the registry's own sentinel nameservers (nonexistent.punktum.dk), so it does not resolve. It was registered on 3 October 2022 (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#

1 records 0ms

Nameserver	IP addresses	PTR	ASN / ISP
nonexistent.punktum.dk	—	—	—

🌍 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

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-04 04:01:24

www	NXDOMAIN
Wildcard	No
Denial of existence	NSEC zone can be walked (all names enumerable)
CDS / CDNSKEY	Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY

🔗 TLSA / DANE#

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

🔐 DNSSEC#

0ms

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	registry sentinel delegation (no resolvable NS); DNSSEC not evaluated

🏷️ SOA#

✗ No SOA record found

📋 Registration#

WHOIS fetched 2026-10-06 04:30:57

Field	Value
Registrar	Simply.com A/S
Registered	2022-10-03
Expires	2026-10-02 (expired)

📋 WHOIS#

⏱️ Lookup Timing#

0ms

AAAA

0ms

TXT

0ms

CAA

0ms

HTTPS

0ms

TLSA

7ms

SOA

0ms

MTA-STS

0ms

DNSSEC

0ms

SRV

0ms

Total

705ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-19 02:49:42	225ms	1 NS 0 A 0 MX	❓ Unknown
2026-10-18 01:18:07	126ms	1 NS 0 A 0 MX	❓ Unknown
2026-10-17 01:11:27	404ms	1 NS 0 A 0 MX	❓ Unknown
2026-10-15 23:22:43	321ms	1 NS 0 A 0 MX	❓ Unknown
2026-10-14 20:55:04	380ms	1 NS 0 A 0 MX	❓ Unknown
2026-10-13 20:03:41	137ms	1 NS 0 A 0 MX	❓ Unknown
2026-10-12 19:23:14	100ms	1 NS 0 A 0 MX	❓ Unknown
2026-10-11 18:24:14	214ms	1 NS 0 A 0 MX	❓ Unknown
2026-10-10 15:21:19	108ms	1 NS 0 A 0 MX	❓ Unknown
2026-10-09 12:58:23	566ms	1 NS 0 A 0 MX	❓ Unknown
2026-10-09 06:29:28 shown	705ms	1 NS 0 A 0 MX	❓ Unknown
2026-10-08 06:28:08	257ms	1 NS 0 A 0 MX	❓ Unknown
2026-10-07 06:27:02	115ms	1 NS 0 A 0 MX	❓ Unknown
2026-10-06 04:08:13	585ms	1 NS 0 A 0 MX	❓ Unknown
2026-10-04 04:01:24	326ms	3 NS 0 A 0 MX	🔒 Secure
2026-10-02 23:56:01	323ms	3 NS 0 A 0 MX	🔒 Secure
2026-09-14 04:41:26	451ms	3 NS 0 A 0 MX	🔒 Secure
2026-06-29 08:51:22	469ms	3 NS 0 A 0 MX	🔒 Secure
2026-06-25 01:05:20	699ms	3 NS 0 A 0 MX	⚠️ Bogus
2026-06-18 03:32:13	479ms	3 NS 0 A 0 MX	🔒 Secure