bycv.dk

📜 Historical scan 2026-09-04 10:31:57 · ← Latest scan

bycv.dk is a .dk domain served by 4 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com and 1 more). It was registered on 28 March 2021 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. The zone is DNSSEC-signed but currently fails validation, has no DMARC policy and has no IPv6 address. 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

4 records 39ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.simply.com	2a02:2339:1:15c::4562:4562 91.197.248.78	ns1.simply.com ns1.simply.com	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.simply.com	185.25.141.15 2a02:2339:4006:101::4562:4562	ns2.simply.com ns2.simply.com	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns3.simply.com	91.197.248.79	ns3.simply.com	AS48854 team.blue Denmark A/S
ns4.simply.com	91.197.248.80	ns4.simply.com	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

🧩 Web & zone

latest probe, not this scan · checked 2026-10-02 12:11:50

www	Address record (no CNAME)
Wildcard	Yes: any name under the zone resolves
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

124ms

Check	Result
Validation Status	⚠️ Bogus
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 2026-10-02 15:23:43

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2021-03-28
Expires	2027-03-31 (179d)

📋 WHOIS

⏱️ Lookup Timing

39ms

36ms

48ms

AAAA

37ms

TXT

119ms

CAA

47ms

HTTPS

44ms

TLSA

19ms

SOA

25ms

MTA-STS

51ms

DNSSEC

124ms

SRV

50ms

Total

624ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-10-02 12:11:50	419ms	3 NS 1 A 1 MX	❓ Unknown
2026-10-01 12:10:19	899ms	4 NS 0 A 0 MX	⚠️ Bogus
2026-09-30 12:08:28	550ms	3 NS 1 A 1 MX	❓ Unknown
2026-09-30 08:05:53	2461ms	4 NS 0 A 0 MX	⚠️ Bogus
2026-09-29 07:53:42	1620ms	4 NS 0 A 0 MX	⚠️ Bogus
2026-09-28 07:08:20	699ms	4 NS 0 A 0 MX	⚠️ Bogus
2026-09-27 06:48:19	708ms	4 NS 0 A 0 MX	⚠️ Bogus
2026-09-26 06:38:26	668ms	4 NS 0 A 0 MX	⚠️ Bogus
2026-09-25 06:13:22	497ms	3 NS 1 A 1 MX	❓ Unknown
2026-09-25 02:21:28	779ms	4 NS 0 A 0 MX	⚠️ Bogus
2026-09-24 01:20:35	903ms	4 NS 0 A 0 MX	⚠️ Bogus
2026-09-19 17:22:36	1498ms	4 NS 0 A 0 MX	⚠️ Bogus
2026-09-12 16:02:19	817ms	4 NS 0 A 0 MX	⚠️ Bogus
2026-09-11 14:11:52	1713ms	4 NS 0 A 0 MX	⚠️ Bogus
2026-09-04 10:31:57 shown	624ms	4 NS 0 A 0 MX	⚠️ Bogus
2026-08-31 14:54:59	2510ms	4 NS 0 A 0 MX	⚠️ Bogus
2026-08-30 13:53:16	2702ms	4 NS 0 A 0 MX	⚠️ Bogus
2026-08-29 01:40:37	643ms	4 NS 0 A 0 MX	⚠️ Bogus
2026-08-27 21:04:00	798ms	4 NS 0 A 0 MX	⚠️ Bogus
2026-08-26 20:36:07	613ms	3 NS 1 A 1 MX	❓ Unknown
2026-08-26 04:11:50	1461ms	4 NS 0 A 0 MX	⚠️ Bogus
2026-07-03 18:23:59	641ms	4 NS 0 A 0 MX	⚠️ Bogus
2026-07-02 12:31:10	612ms	3 NS 1 A 1 MX	❓ Unknown
2026-06-27 01:29:45	562ms	3 NS 1 A 1 MX	❓ Unknown
2026-06-21 11:04:32	1740ms	0 NS 0 A 0 MX	⚠️ Bogus