bytefrost.dk

📜 Historical scan 2026-09-30 02:53:54  ·  ← 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   44ms
NameserverIP addressesPTRASN / 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   42ms
IPTTLPTRASNISP / OrgCIDRCountryCity
80.248.138.23 3600s — AS216275 Netnoerden ApS 80.248.138.0/23 🇩🇰 Denmark Søborg

📧 MX Records#

1 records   45ms
PriorityTTLMail ServerIP addressesPTRASN
10 3600s mail.bytefrost.dk 80.248.138.23 — AS216275 Netnoerden ApS

📧 Autodiscover / Autoconfig#

ServiceCNAME / IP
🔷 Autodiscovermail.bytefrost.dk → 80.248.138.23
🔶 Autoconfigmail.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   91ms
ServicePriorityWeightPortTarget
_imaps._tcp 0 1 993 mail.bytefrost.dk

📝 TXT Records#

1 records   287ms
TXT Record
v=spf1 mx -all

✉️ SPF#

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

📨 DMARC#

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

📬 MTA-STS#

159ms
CheckResult
Status⚠️ Invalid
TXT record (_mta-sts)✓ Found
HTTPS policy✗ Missing / invalid
Policy ID16531752876556656069
Policy MX—

📈 TLSRPT#

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

📜 CAA Records#

2 records   46ms
FlagsTagValue
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
www80.248.138.23 (AS216275) (address records, no CNAME)
www vs bare domainSame network
bytefrost.dk: 80.248.138.23 (AS216275)
www.bytefrost.dk: 80.248.138.23 (AS216275)
WildcardYes: any name under the zone resolves
Denial of existenceNSEC3 · 0 iterations · no salt RFC 9276 ✓
CDS / CDNSKEYPublished: 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   114ms
Service / OwnerTypeCert association
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…
SMTP _25._tcp.mail.bytefrost.dk DANE-TA · SPKI · SHA-256 B3FB5D00E994CDDF2CC9A4EEA9F806BC…

🔐 DNSSEC#

69ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated

🏷️ SOA#

0ms
FieldValue
Serial2026074788
Primary NS (MNAME)get.desec.io
Responsible (RNAME)get@desec.io
Refresh86400s
Retry3600s
Expire2419200s
Minimum (neg-cache TTL)3600s

📋 Registration#

WHOIS fetched 2026-10-24 01:58:58
FieldValue
RegistrarSimply.com A/S
Registered2026-04-27
Expires2027-04-26 (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).

DomainRegistrar
jean-pierre.dkSimply.com A/S
sdet.dkSimply.com A/S
📋 WHOIS#

⏱️ Lookup Timing#

NS
44ms
A
42ms
MX
45ms
AAAA
58ms
TXT
287ms
CAA
46ms
HTTPS
43ms
TLSA
114ms
SOA
0ms
MTA-STS
159ms
DNSSEC
69ms
SRV
91ms
Total
701ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-24 01:42:19 4704ms 2 NS 1 A 1 MX 🔒 Secure
2026-10-16 00:17:47 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 shown 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
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