sfk-byg.dk

📜 Historical scan 2026-10-03 20:01:38 · ← Latest scan

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

sfk-byg.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 2 September 2020 (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 2026-10-24 15:07:01

www	77.111.240.179 2a02:2350:5:102:809a:5238:ed0d:51b3 (AS51468) (address records, no CNAME)
www vs bare domain	Same network sfk-byg.dk: 77.111.240.179 2a02:2350:5:102:809a:5238:ed0d:51b3 (AS51468) www.sfk-byg.dk: 77.111.240.179 2a02:2350:5:102:809a:5238:ed0d:51b3 (AS51468)
Wildcard	Yes: any name under the zone resolves
CDS / CDNSKEY	None 0 CDS, 0 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 2026-10-05 20:14:16

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2020-09-02
Expires	2027-09-30 (339d)

📋 WHOIS#

⏱️ Lookup Timing#

0ms

AAAA

0ms

TXT

0ms

CAA

0ms

HTTPS

0ms

TLSA

1ms

SOA

0ms

MTA-STS

0ms

DNSSEC

0ms

SRV

0ms

Total

138ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-24 15:07:01	3606ms	2 NS 1 A 3 MX	🔒 Secure
2026-10-05 20:06:58	885ms	2 NS 1 A 3 MX	🔒 Secure
2026-10-04 20:03:18	229ms	1 NS 0 A 0 MX	❓ Unknown
2026-10-03 20:01:38 shown	138ms	1 NS 0 A 0 MX	❓ Unknown
2026-10-02 20:00:38	303ms	1 NS 0 A 0 MX	❓ Unknown
2026-10-01 19:59:32	1779ms	1 NS 0 A 0 MX	❓ Unknown
2026-09-29 19:31:46	529ms	2 NS 1 A 3 MX	🔒 Secure
2026-09-25 06:47:51	734ms	2 NS 1 A 3 MX	🔒 Secure
2026-09-07 09:16:32	677ms	2 NS 1 A 4 MX	🔒 Secure
2026-08-28 00:03:20	1083ms	2 NS 1 A 4 MX	🔒 Secure
2026-07-08 17:32:37	1138ms	2 NS 1 A 4 MX	🔒 Secure
2026-07-04 21:38:09	6549ms	2 NS 1 A 4 MX	🔒 Secure
2026-07-03 18:35:18	792ms	2 NS 1 A 4 MX	🔒 Secure
2026-06-23 23:44:19	671ms	2 NS 1 A 4 MX	🔒 Secure
2026-06-20 07:50:58	802ms	2 NS 1 A 4 MX	🔒 Secure
2026-06-17 12:02:15	873ms	2 NS 1 A 4 MX	🔒 Secure