bygningsconsult.dk

Records from scan: 2026-10-04 10:20:23 · 513ms total · last checked 2026-10-17 06:10 (unchanged)

⬇ 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 not DNSSEC-signed, has no DMARC policy and has no IPv6 address. Below are all of its DNS records from our latest scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 40ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.onwelcom.dk	185.51.79.241	ns1.onwelcom.dk	AS205984 Powernet Aps
ns2.onwelcom.dk	185.51.79.251	—	AS205984 Powernet Aps

🌍 A Records#

1 records 44ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
185.51.79.250	86400s	web01.onwelcom.dk	AS205984	Powernet Aps	185.51.78.0/23	🇩🇰 Denmark	—

📧 MX Records#

2 records 39ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	86400s	mailfilter.onwelcom.dk	185.51.79.248	mailfilter.powernet.dk	AS205984 Powernet Aps
20	86400s	mx2.onwelcom.dk	185.51.79.248	mailfilter.powernet.dk	AS205984 Powernet Aps

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	185.51.79.250
🔶 Autoconfig	185.51.79.250

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 193ms

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#

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#

96ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	unsigned answer

🏷️ SOA#

53ms

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#

40ms

44ms

39ms

AAAA

39ms

TXT

193ms

CAA

45ms

HTTPS

72ms

TLSA

80ms

SOA

53ms

MTA-STS

71ms

DNSSEC

96ms

SRV

78ms

Total

513ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-04 10:20:23 shown	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	473ms	2 NS 1 A 2 MX	⚠️ Bogus
2026-06-16 18:20:59	593ms	2 NS 1 A 2 MX	🔓 Insecure