seido-systems.dk

📜 Historical scan 2026-07-07 08:54:38 · ← Latest scan

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

seido-systems.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 6 July 2026 (WHOIS) and first appeared in the .dk zone on 7 July 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 186ms

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 2026-10-09 09:29:24

www	217.21.190.139 (AS34762) (address records, no CNAME)
www vs bare domain	Same network seido-systems.dk: 217.21.190.139 (AS34762) www.seido-systems.dk: 217.21.190.139 (AS34762)
Wildcard	No

🔗 TLSA / DANE#

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

🔐 DNSSEC#

262ms

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: failure

🏷️ SOA#

✗ No SOA record found

📋 Registration#

WHOIS fetched 2026-10-14 20:59:01

Field	Value
Registrar	1API GmbH
Registered	2026-07-06
Expires	2027-07-05 (251d)

🔗 Same registrant#

0 domains

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).

No other domain with this registrant in our WHOIS data yet

📋 WHOIS#

⏱️ Lookup Timing#

186ms

180ms

AAAA

187ms

TXT

263ms

CAA

196ms

HTTPS

185ms

TLSA

49ms

SOA

188ms

MTA-STS

221ms

DNSSEC

262ms

SRV

204ms

Total

1426ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-09 09:29:24	670ms	3 NS 1 A 2 MX	🔓 Insecure
2026-10-01 03:41:04	788ms	3 NS 1 A 2 MX	🔓 Insecure
2026-08-05 06:17:01	1717ms	3 NS 1 A 2 MX	🔓 Insecure
2026-07-28 13:03:41	986ms	1 NS 0 A 0 MX	❓ Unknown
2026-07-27 11:59:56	665ms	1 NS 0 A 0 MX	❓ Unknown
2026-07-26 11:31:09	2683ms	1 NS 0 A 0 MX	❓ Unknown
2026-07-25 11:28:13	747ms	1 NS 0 A 0 MX	❓ Unknown
2026-07-24 11:04:13	9731ms	1 NS 0 A 0 MX	❓ Unknown
2026-07-23 10:14:09	579ms	1 NS 0 A 0 MX	❓ Unknown
2026-07-22 04:09:57	611ms	1 NS 0 A 0 MX	❓ Unknown
2026-07-21 01:47:44	601ms	1 NS 0 A 0 MX	❓ Unknown
2026-07-19 15:07:42	560ms	1 NS 0 A 0 MX	❓ Unknown
2026-07-18 13:39:35	589ms	1 NS 0 A 0 MX	❓ Unknown
2026-07-17 11:30:05	820ms	1 NS 0 A 0 MX	❓ Unknown
2026-07-16 10:38:11	2693ms	1 NS 0 A 0 MX	❓ Unknown
2026-07-14 08:32:36	8529ms	1 NS 0 A 0 MX	❓ Unknown
2026-07-08 14:21:46	8678ms	1 NS 0 A 0 MX	❓ Unknown
2026-07-07 08:54:38 shown	1426ms	1 NS 0 A 0 MX	❓ Unknown