bytefrost.dk

📜 Historical scan 2026-10-16 00:17:47 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

bytefrost.dk is a .dk domain served by 2 nameservers (ns1.desec.io, ns2.desec.org). It was registered on 27 April 2026 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 80.248.138.23 is hosted by Netnoerden ApS (AS216275) in Denmark. Mail is handled by mail.bytefrost.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 35ms

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 Records#

1 records 45ms

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

📧 MX Records#

1 records 60ms

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 Records#

1 records 106ms

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

📝 TXT Records#

1 records 315ms

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-STS#

1503ms

Check	Result
Status	⚠️ Invalid
TXT record (_mta-sts)	✓ Found
HTTPS policy	✗ Missing / invalid
Policy ID	16531752876556656069
Policy MX	—

📈 TLSRPT#

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

📜 CAA Records#

2 records 59ms

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

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-24 01:42:19

www	80.248.138.23 (AS216275) (address records, no CNAME)
www vs bare domain	Same network bytefrost.dk: 80.248.138.23 (AS216275) www.bytefrost.dk: 80.248.138.23 (AS216275)
Wildcard	Yes: any name under the zone resolves
Denial of existence	NSEC3 · 0 iterations · no salt RFC 9276 ✓
CDS / CDNSKEY	Published: key rollovers can be automated with the registry (RFC 7344/8078) 2 CDS, 1 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: -all

No problems found

🔗 TLSA / DANE#

4 records 4028ms

Service / Owner	Type	Cert association
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…
SMTP _25._tcp.mail.bytefrost.dk	DANE-TA · SPKI · SHA-256	B0292AE545978E0FBB98ABBD94C86160…

🔐 DNSSEC#

61ms

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

🏷️ SOA#

100ms

Field	Value
Serial	2026074791
Primary NS (MNAME)	get.desec.io
Responsible (RNAME)	get@desec.io
Refresh	86400s
Retry	3600s
Expire	2419200s
Minimum (neg-cache TTL)	3600s

📋 Registration#

WHOIS fetched 2026-10-24 01:58:58

Field	Value
Registrar	Simply.com A/S
Registered	2026-04-27
Expires	2027-04-26 (183d)

🔗 Same registrant#

2 domains

Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).

Domain	Registrar
jean-pierre.dk	Simply.com A/S
sdet.dk	Simply.com A/S

📋 WHOIS#

⏱️ Lookup Timing#

35ms

45ms

60ms

AAAA

43ms

TXT

315ms

CAA

59ms

HTTPS

50ms

TLSA

4028ms

SOA

100ms

MTA-STS

1503ms

DNSSEC

61ms

SRV

106ms

Total

5870ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-24 01:42:19	4704ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-16 00:17:47 shown	5870ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-08 04:03:49	2371ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-02 02:14:07	2125ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-01 02:08:12	4696ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-30 02:53:54	701ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-24 08:21:51	899ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-17 13:13:37	1011ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-13 00:57:51	10476ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-11 03:46:10	1641ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-04 01:54:57	3891ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-28 09:28:10	1073ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-27 21:54:25	1869ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-20 13:49:05	9791ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-13 09:03:26	5069ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-06 07:02:08	4395ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-23 19:53:10	3158ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-18 20:18:28	7329ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-14 08:32:47	8728ms	3 NS 0 A 0 MX	🔒 Secure
2026-06-26 13:46:03	637ms	3 NS 0 A 0 MX	🔒 Secure
2026-06-19 23:56:28	1040ms	3 NS 0 A 0 MX	🔒 Secure
2026-06-16 18:50:50	948ms	3 NS 0 A 0 MX	🔒 Secure
2026-06-16 18:30:50	2276ms	3 NS 0 A 0 MX	🔒 Secure
2026-06-16 18:30:41	2348ms	3 NS 0 A 0 MX	🔒 Secure