bykort.dk

📜 Historical scan 2026-06-23 23:11:42 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

bykort.dk is a .dk domain served by 2 nameservers (ns1.yayhosting.dk, ns2.yayhosting.dk). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 195.242.130.56 is hosted by Christian Ebsen ApS (AS62121) in Denmark. Mail is handled by mx1.spamfri.dk, mx2.spamfri.dk and 1 more. The zone is not DNSSEC-signed, 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 25ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.yayhosting.dk	195.242.130.62 2001:67c:564:fffe::100	ns1.yayhosting.dk —	AS62121 Christian Ebsen ApS AS62121 Christian Ebsen ApS
ns2.yayhosting.dk	2a00:1b18:2:3:1::2 62.69.152.35	ns2.yayhosting.dk 35.34-46.152.69.62.in-addr.arpa	AS47527 DLX A/S AS47527 DLX A/S

🌍 A Records#

1 records 32ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
195.242.130.56	14400s	whm03.yayhosting.dk	AS62121	Christian Ebsen ApS	195.242.130.0/23	🇩🇰 Denmark	—

📧 MX Records#

3 records 44ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	mx1.spamfri.dk	195.242.131.16 2001:67c:564:fffd::1001	mx1.spamfri.dk mx1.spamfri.dk	AS62121 Christian Ebsen ApS AS62121 Christian Ebsen ApS
20	3600s	mx2.spamfri.dk	193.200.91.109 2001:67c:564:fffd::2001	mx2.spamfri.dk mx2.spamfri.dk	AS62121 Christian Ebsen ApS AS62121 Christian Ebsen ApS
30	3600s	mx3.spamfri.dk	2a00:1b18:2:3:fe::2 62.69.152.43 62.69.152.43	mx3.spamfri.dk 43.34-46.152.69.62.in-addr.arpa mx3.spamfri.dk	AS47527 DLX A/S AS47527 DLX A/S AS47527 DLX A/S

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	195.242.130.56
🔶 Autoconfig	195.242.130.56

🔷 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
_autodiscover._tcp	0	0	443	whm03.yayhosting.dk

📝 TXT Records#

1 records 199ms

TXT Record
v=spf1 ip4:195.242.130.56 include:_spf.yayhosting.dk -all

✉️ SPF#

Policy	Record (bykort.dk)
-all (hard fail)	v=spf1 ip4:195.242.130.56 include:_spf.yayhosting.dk -all

📨 DMARC#

Policy	Record (_dmarc.bykort.dk)
p=none (monitor only)	v=DMARC1; p=none;

📬 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#

latest probe, not this scan · checked 2026-10-08 05:07:02

www CNAME	bykort.dk (all on bykort.dk) → 195.242.130.56 (AS62121)
www vs bare domain	Same network bykort.dk: 195.242.130.56 (AS62121) www.bykort.dk: 195.242.130.56 (AS62121)
Wildcard	No

✍️ DKIM keys#

1 found

Selector	CNAME	Key
default	—	RSA · ~2048 bit

DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: -all

No problems found

🔏 ACME Challenge#

Type	Name	Value
TXT	_acme-challenge.bykort.dk	2ZMORsndyhTyzxvM3OLpT0Yrst2HvRmMvEHaCaPG1JQ

🔗 TLSA / DANE#

3 records 48ms

Service / Owner	Type	Cert association
SMTP _25._tcp.mx1.spamfri.dk	DANE-EE · SPKI · SHA-256	884451547A03D0AC2F628D943839BAA6…
SMTP _25._tcp.mx2.spamfri.dk	DANE-EE · SPKI · SHA-256	6598C93F79B95376BB8099E9AC862167…
SMTP _25._tcp.mx3.spamfri.dk	DANE-EE · SPKI · SHA-256	BBFB0694919290E5BC9D6E2C6F47D846…

🔐 DNSSEC#

95ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	unsigned answer

🏷️ SOA#

25ms

Field	Value
Serial	2026060701
Primary NS (MNAME)	ns1.yayhosting.dk
Responsible (RNAME)	hostmaster@mailrelay.e-studio.dk
Refresh	3600s
Retry	1800s
Expire	1209600s
Minimum (neg-cache TTL)	86400s

📋 Registration#

✗ No registration data yet — queued for a WHOIS lookup

📋 WHOIS#

⏱️ Lookup Timing#

25ms

32ms

44ms

AAAA

88ms

TXT

199ms

CAA

78ms

HTTPS

24ms

TLSA

48ms

SOA

25ms

MTA-STS

52ms

DNSSEC

95ms

SRV

106ms

Total

658ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-08 05:07:02	1423ms	2 NS 1 A 3 MX	🔓 Insecure
2026-09-30 00:05:12	688ms	2 NS 1 A 3 MX	🔓 Insecure
2026-09-05 23:49:16	572ms	2 NS 1 A 3 MX	🔓 Insecure
2026-09-02 09:22:59	635ms	2 NS 1 A 3 MX	🔓 Insecure
2026-08-28 01:36:34	646ms	2 NS 1 A 3 MX	🔓 Insecure
2026-08-25 22:33:22	754ms	2 NS 1 A 3 MX	🔓 Insecure
2026-08-09 13:18:27	3965ms	2 NS 1 A 3 MX	🔓 Insecure
2026-06-23 23:11:42 shown	658ms	2 NS 1 A 3 MX	🔓 Insecure
2026-06-16 18:23:00	537ms	2 NS 1 A 3 MX	🔓 Insecure
2026-06-16 18:20:29	647ms	2 NS 1 A 3 MX	🔓 Insecure