mf-byg.dk

Records from scan: 2026-09-30 08:07:21 · 397ms total · last checked 2026-10-21 06:15 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

mf-byg.dk is a .dk domain served by 2 nameservers (ns1.curanet.dk, ns2.curanet.dk). It was registered on 23 March 2009 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 93.191.155.37 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by mx1.onlinemail.io, mx2.onlinemail.io. The zone is DNSSEC-signed and validates, publishes a 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 27ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.curanet.dk	185.25.141.12 2a02:2339:4006:108::123	ns1.curanet.dk ns1.curanet.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.curanet.dk	2a02:2339:1:10f::123:123 91.197.248.75	ns2.curanet.dk ns2.curanet.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S

🌍 A Records#

1 records 25ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
93.191.155.37	3600s	splash.zitcom.dk	AS48854	team.blue Denmark A/S	93.191.152.0/21	🇩🇰 Denmark	—

📧 MX Records#

2 records 43ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	mx1.onlinemail.io	185.21.42.12	mx1.onlinemail.io	AS48854 team.blue Denmark A/S
20	3600s	mx2.onlinemail.io	46.36.208.16	mx2.onlinemail.io	AS48854 team.blue Denmark A/S

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	autodiscover-mf.onlinemail.io → 185.21.40.62
🔶 Autoconfig	autoconfig-mf.onlinemail.io → 185.21.40.62

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

2 records 136ms

TXT Record
MS=ms43850311
v=spf1 include:spf.curanet.dk ~all

✉️ SPF#

Policy	Record (mf-byg.dk)
~all (soft fail)	v=spf1 include:spf.curanet.dk ~all

📨 DMARC#

Policy	Record (_dmarc.mf-byg.dk)
p=quarantine	v=DMARC1; p=quarantine;

📬 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 2026-10-10 17:47:45

www	93.191.155.37 (AS48854) (address records, no CNAME)
www vs bare domain	Same network mf-byg.dk: 93.191.155.37 (AS48854) www.mf-byg.dk: 93.191.155.37 (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#

79ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2026090402
Primary NS (MNAME)	ns1.curanet.dk.mf-byg.dk
Responsible (RNAME)	hostmaster@curanet.dk
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	300s

📋 Registration#

WHOIS fetched 2026-10-07 02:28:04

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2009-03-23
Expires	2027-03-31 (160d)

📋 WHOIS#

⏱️ Lookup Timing#

27ms

25ms

43ms

AAAA

43ms

TXT

136ms

CAA

29ms

HTTPS

38ms

TLSA

67ms

SOA

0ms

MTA-STS

79ms

DNSSEC

79ms

SRV

61ms

Total

397ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-30 08:07:21 shown	397ms	2 NS 1 A 2 MX	🔒 Secure
2026-09-06 20:04:29	1500ms	2 NS 1 A 2 MX	🔒 Secure
2026-06-26 09:32:30	4236ms	2 NS 1 A 2 MX	🔒 Secure
2026-06-23 00:38:24	926ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-17 12:12:51	548ms	2 NS 1 A 2 MX	🔒 Secure