byf.dk DNS records

🖥️ Nameservers2 records 111ms

Nameserver	IP addresses	PTR	ASN / ISP
ns6.sitnet.dk	107.162.234.197 2604:e180:1071::3:1	— —	AS55002 F5, Inc. AS55002 F5, Inc.
ns7.sitnet.dk	107.162.176.221 2604:e180:1071::ffff:6ba2:b0dd	— —	AS55002 F5, Inc. AS55002 F5, Inc.

🌍 A Records1 records 100ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
195.50.36.76	3600s	—	AS6834	KMD A/S	195.50.32.0/19	🇩🇰 Denmark	—

📧 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 Records1 records 498ms

TXT Record
v=spf1 -all

✉️ SPF

Policy	Record (byf.dk)
-all (hard fail)	v=spf1 -all

📨 DMARC

Policy	Record (_dmarc.byf.dk)
p=reject	v=DMARC1; p=reject; sp=reject; rua=mailto:tcod1eh2@ag.eu.dmarcadvisor.com;

📬 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

🔗 TLSA / DANE

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

🔐 DNSSEC262ms

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

🏷️ SOA0ms

Field	Value
Serial	5052
Primary NS (MNAME)	ns6.sitnet.dk
Responsible (RNAME)	hostmaster@statens-it.dk
Refresh	10800s
Retry	1080s
Expire	2419200s
Minimum (neg-cache TTL)	300s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

111ms

A

100ms

MX

78ms

AAAA

107ms

TXT

498ms

CAA

94ms

HTTPS

93ms

TLSA

139ms

SOA

0ms

MTA-STS

171ms

DNSSEC

262ms

SRV

213ms

Total

1458ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-30 00:34:12	1458ms	2 NS 1 A 0 MX	🔒 Secure	View
2026-08-28 19:27:18	17578ms	2 NS 1 A 0 MX	🔒 Secure	View
2026-08-27 18:19:08	5134ms	2 NS 1 A 0 MX	🔒 Secure	View
2026-08-26 18:47:16	9920ms	2 NS 1 A 0 MX	🔒 Secure	View
2026-08-26 01:48:56	1287ms	2 NS 1 A 0 MX	🔒 Secure	View
2026-08-24 18:51:52	5467ms	2 NS 1 A 0 MX	🔒 Secure	View
2026-08-23 18:35:13	9201ms	2 NS 1 A 0 MX	🔒 Secure	View
2026-08-22 14:36:29	14106ms	2 NS 1 A 0 MX	🔒 Secure	View
2026-08-21 14:24:46	13841ms	2 NS 1 A 0 MX	🔒 Secure	View
2026-08-20 13:49:56	5414ms	2 NS 1 A 0 MX	🔒 Secure	View
2026-08-19 13:41:30	10028ms	2 NS 1 A 0 MX	🔒 Secure	View
2026-08-18 13:38:53	9948ms	2 NS 1 A 0 MX	🔒 Secure	View
2026-08-16 13:39:42	13862ms	2 NS 1 A 0 MX	🔒 Secure	View
2026-08-13 20:11:40	17109ms	2 NS 1 A 0 MX	🔒 Secure	View
2026-08-12 04:49:03	5156ms	2 NS 1 A 0 MX	🔒 Secure	View
2026-08-09 23:53:20	6582ms	2 NS 1 A 0 MX	🔒 Secure	View
2026-08-08 14:00:44	6427ms	2 NS 1 A 0 MX	🔒 Secure	View
2026-07-29 15:30:23	5704ms	2 NS 1 A 0 MX	🔒 Secure	View
2026-07-27 14:05:13	17402ms	2 NS 1 A 0 MX	🔒 Secure	View
2026-07-26 13:49:25	20760ms	2 NS 1 A 0 MX	🔓 Insecure	View
2026-07-25 13:00:50	5356ms	2 NS 1 A 0 MX	🔒 Secure	View
2026-07-24 12:35:50	13278ms	2 NS 1 A 0 MX	🔒 Secure	View
2026-07-23 11:15:55	6984ms	2 NS 1 A 0 MX	🔒 Secure	View
2026-07-22 10:23:34	3897ms	2 NS 1 A 0 MX	🔒 Secure	View
2026-07-21 09:35:44	1341ms	2 NS 1 A 0 MX	🔒 Secure	View