byg100.dk

📜 Historical scan 2026-06-22 16:53:51 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

byg100.dk is a .dk domain served by 2 nameservers (ns.dandomain.dk, ns2.dandomain.dk). It was registered on 31 January 2017 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.146.167.200 is hosted by 20i Limited (AS48254) in United States. Mail is handled by mx1.dandomain.dk, mx2.dandomain.dk. The zone is DNSSEC-signed and validates, publishes a 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 34ms

Nameserver	IP addresses	PTR	ASN / ISP
ns.dandomain.dk	185.25.141.3 2a02:2339:4006:109::dd	ns.dandomain.dk ns.dandomain.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.dandomain.dk	2a02:2339:1:108::dd:dd 91.197.248.66	ns2.dandomain.dk ns2.dandomain.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S

🌍 A Records#

2 records 50ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
185.146.167.200	3600s	—	AS48254	20i Limited	185.146.164.0/22	🇺🇸 United States	—
212.237.249.17	3600s	splash.dandomain.dk	AS48854	team.blue Denmark A/S	212.237.248.0/23	🇩🇰 Denmark	—

📧 MX Records#

2 records 53ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	mx1.dandomain.dk	212.237.249.50	mx1.dandomain.dk	AS48854 team.blue Denmark A/S
20	3600s	mx2.dandomain.dk	46.36.209.11	mx2.dandomain.dk	AS48854 team.blue Denmark A/S

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	autodiscover-mf.dandomain.dk → 212.237.249.98
🔶 Autoconfig	autoconfig-mf.dandomain.dk → 212.237.249.54

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

2 records 944ms

TXT Record
MS=ms81845177
v=spf1 include:spf.dandomain.dk -all

✉️ SPF#

Policy	Record (byg100.dk)
-all (hard fail)	v=spf1 include:spf.dandomain.dk -all

📨 DMARC#

Policy	Record (_dmarc.byg100.dk)
p=none (monitor only)	v=DMARC1; p=none;

📬 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 2026-10-07 17:33:11

www	185.146.167.200 212.237.249.17 (AS48254 AS48854) (address records, no CNAME)
www vs bare domain	Same network byg100.dk: 185.146.167.200 212.237.249.17 (AS48254 AS48854) www.byg100.dk: 185.146.167.200 212.237.249.17 (AS48254 AS48854)
Wildcard	Yes: any name under the zone resolves
Denial of existence	NSEC3 · 1 iteration · 1-byte salt RFC 9276 recommends 0 iterations and no salt
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 3/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

143ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	fully validated

🏷️ SOA#

0ms

Field	Value
Serial	2026062201
Primary NS (MNAME)	ns.dandomain.dk
Responsible (RNAME)	hostmaster@dandomain.dk
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	300s

📋 Registration#

WHOIS fetched 2026-10-08 22:34:02

Field	Value
Registrar	DANDOMAIN A/S
Registered	2017-01-31
Expires	2027-01-31 (100d)

📋 WHOIS#

⏱️ Lookup Timing#

34ms

50ms

53ms

AAAA

38ms

TXT

944ms

CAA

57ms

HTTPS

57ms

TLSA

124ms

SOA

0ms

MTA-STS

83ms

DNSSEC

143ms

SRV

135ms

Total

3549ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-06-23 10:35:22	789ms	2 NS 2 A 2 MX	🔒 Secure
2026-06-22 16:53:51 shown	3549ms	2 NS 2 A 2 MX	🔒 Secure
2026-06-19 04:30:38	5499ms	2 NS 2 A 2 MX	🔓 Insecure
2026-06-16 18:10:14	577ms	2 NS 2 A 2 MX	🔓 Insecure