bytefrost.dk DNS records

🖥️ Nameservers2 records 49ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.desec.io	2607:f740:e633:deec::2 45.54.76.1	ns1.desec.io ns1.desec.io	AS63911 NetActuate, Inc AS63911 NetActuate, Inc
ns2.desec.org	157.53.224.1 2607:f740:e00a:deec::2	ns2.desec.org ns2.desec.org	AS36217 NetActuate, Inc AS36217 NetActuate, Inc

🌍 A Records1 records 42ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
80.248.138.23	3600s	—	AS216275	Netnoerden ApS	80.248.138.0/23	🇩🇰 Denmark	Søborg

📧 MX Records1 records 53ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	mail.bytefrost.dk	80.248.138.23	—	AS216275 Netnoerden ApS

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	mail.bytefrost.dk → 80.248.138.23
🔶 Autoconfig	mail.bytefrost.dk → 80.248.138.23

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records1 records 103ms

Service	Priority	Weight	Port	Target
_imaps._tcp	0	1	993	mail.bytefrost.dk

📝 TXT Records1 records 290ms

TXT Record
v=spf1 mx -all

✉️ SPF

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

📨 DMARC

Policy	Record (_dmarc.bytefrost.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:postmaster@bytefrost.dk

📬 MTA-STS379ms

Check	Result
Status	🧪 Testing
TXT record (_mta-sts)	✓ Found
HTTPS policy	✓ Valid
Mode	testing
Policy ID	16531752876556656069
max_age	604800s
Policy MX	mail.bytefrost.dk

📈 TLSRPT

Status	Report address (rua)
✓ Enabled	mailto:postmaster@bytefrost.dk

📜 CAA Records2 records 57ms

Flags	Tag	Value
0	iodef	mailto:postmaster@bytefrost.dk
0	issue	letsencrypt.org;accounturi=https://acme-v02.api.letsencrypt.org/acme/acct/3542604276

🔗 TLSA / DANE4 records 80ms

Service / Owner	Type	Cert association
SMTP _25._tcp.mail.bytefrost.dk	DANE-TA · SPKI · SHA-256	B0292AE545978E0FBB98ABBD94C86160…
SMTP _25._tcp.mail.bytefrost.dk	DANE-TA · SPKI · SHA-256	B3FB5D00E994CDDF2CC9A4EEA9F806BC…
SMTP _25._tcp.mail.bytefrost.dk	DANE-EE · SPKI · SHA-256	39C4C0CA985690A7CE561EEB1C51A587…
SMTP _25._tcp.mail.bytefrost.dk	DANE-TA · SPKI · SHA-256	762195C225586EE6C0237456E2107DC5…

🔐 DNSSEC128ms

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

🏷️ SOA0ms

Field	Value
Serial	2026074784
Primary NS (MNAME)	get.desec.io
Responsible (RNAME)	get@desec.io
Refresh	86400s
Retry	3600s
Expire	2419200s
Minimum (neg-cache TTL)	3600s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

49ms

A

42ms

MX

53ms

AAAA

50ms

TXT

290ms

CAA

57ms

HTTPS

51ms

TLSA

80ms

SOA

0ms

MTA-STS

379ms

DNSSEC

128ms

SRV

103ms

Total

1073ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-28 09:28:10	1073ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-27 21:54:25	1869ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-20 13:49:05	9791ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-13 09:03:26	5069ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-06 07:02:08	4395ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-23 19:53:10	3158ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-18 20:18:28	7329ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-14 08:32:47	8728ms	3 NS 0 A 0 MX	🔒 Secure	View
2026-06-26 13:46:03	637ms	3 NS 0 A 0 MX	🔒 Secure	View
2026-06-19 23:56:28	1040ms	3 NS 0 A 0 MX	🔒 Secure	View
2026-06-16 18:50:50	948ms	3 NS 0 A 0 MX	🔒 Secure	View
2026-06-16 18:30:50	2276ms	3 NS 0 A 0 MX	🔒 Secure	View
2026-06-16 18:30:41	2348ms	3 NS 0 A 0 MX	🔒 Secure	View