bygningsconsult.dk

📜 Historical scan 2026-06-16 18:23:30 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

bygningsconsult.dk is a .dk domain served by 2 nameservers (ns1.onwelcom.dk, ns2.onwelcom.dk). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.51.79.250 is hosted by Powernet Aps (AS205984) in Denmark. Mail is handled by mailfilter.onwelcom.dk, mx2.onwelcom.dk. 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#

2 records 32ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.onwelcom.dk	—	—	—
ns2.onwelcom.dk	—	—	—

🌍 A Records#

1 records 75ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
185.51.79.250	—	web01.onwelcom.dk	AS205984	Powernet Aps	185.51.78.0/23	🇩🇰 Denmark	—

📧 MX Records#

2 records 33ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	—	mailfilter.onwelcom.dk	185.51.79.248	mailfilter.powernet.dk	AS205984 Powernet Aps
20	—	mx2.onwelcom.dk	185.51.79.248	mailfilter.powernet.dk	AS205984 Powernet Aps

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 177ms

TXT Record
v=spf1 a mx ptr ~all

✉️ SPF#

Policy	Record (bygningsconsult.dk)
~all (soft fail)	v=spf1 a mx ptr ~all

📨 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 2026-10-13 02:04:41

www	185.51.79.250 (AS205984) (address records, no CNAME)
www vs bare domain	Same network bygningsconsult.dk: 185.51.79.250 (AS205984) www.bygningsconsult.dk: 185.51.79.250 (AS205984)
Wildcard	Yes: any name under the zone resolves

🔎 SPF check#

zone-wide SPF report

DNS lookups: 3/10 · policy: ~all

warn "ptr" is slow, unreliable and discouraged (RFC 7208 §5.5)

🔗 TLSA / DANE#

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

🔐 DNSSEC#

88ms

Check	Result
Validation Status	⚠️ Bogus
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	broken trust chain resolving 'bygningsconsult.dk/A/IN': 127.0.0.1#53

🏷️ SOA#

73ms

Field	Value
Serial	2016090510
Primary NS (MNAME)	ns1.onwelcom.dk
Responsible (RNAME)	hostmaster@bygningsconsult.dk
Refresh	3600s
Retry	600s
Expire	1209600s
Minimum (neg-cache TTL)	86400s

📋 Registration#

✗ No registration data yet — queued for a WHOIS lookup

📋 WHOIS#

⏱️ Lookup Timing#

32ms

75ms

33ms

AAAA

32ms

TXT

177ms

CAA

31ms

HTTPS

35ms

TLSA

76ms

SOA

73ms

MTA-STS

48ms

DNSSEC

88ms

SRV

0ms

Total

473ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-04 10:20:23	513ms	2 NS 1 A 2 MX	🔓 Insecure
2026-08-27 17:11:20	789ms	2 NS 1 A 2 MX	🔓 Insecure
2026-06-21 18:36:26	581ms	2 NS 1 A 2 MX	🔓 Insecure
2026-06-16 18:23:30 shown	473ms	2 NS 1 A 2 MX	⚠️ Bogus
2026-06-16 18:20:59	593ms	2 NS 1 A 2 MX	🔓 Insecure