katkat.dk

📜 Historical scan 2026-06-17 13:00:00 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

katkat.dk is a .dk domain served by 2 nameservers (ns1.curanet.dk, ns2.curanet.dk). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.21.41.148 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by mx1.onlinemail.io, mx2.onlinemail.io. 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 55ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.curanet.dk	185.25.141.12 2a02:2339:4006:108::123	ns1.curanet.dk ns1.curanet.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.curanet.dk	2a02:2339:1:10f::123:123 91.197.248.75	ns2.curanet.dk ns2.curanet.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S

🌍 A Records#

1 records 46ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
185.21.41.148	—	linux101.curanet.dk	AS48854	team.blue Denmark A/S	185.21.40.0/22	🇩🇰 Denmark	—

📧 MX Records#

2 records 80ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	—	mx1.onlinemail.io	185.21.42.12	mx1.onlinemail.io	AS48854 team.blue Denmark A/S
20	—	mx2.onlinemail.io	46.36.208.16	mx2.onlinemail.io	AS48854 team.blue Denmark A/S

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

2 records 222ms

TXT Record
klaviyo-site-verification=Sfzb4C
v=spf1 include:spf.onlinemail.io include:spf.curanet.dk ~all

✉️ SPF#

Policy	Record (katkat.dk)
~all (soft fail)	v=spf1 include:spf.onlinemail.io include:spf.curanet.dk ~all

📨 DMARC#

Policy	Record (_dmarc.katkat.dk)
p=quarantine	v=DMARC1; p=quarantine; pct=25; rua=mailto:kontakt@katkat.dk; ruf=mailto:kontakt@katkat.dk; aspf=r; adkim=r

📬 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 2026-10-07 22:57:07

www	185.21.41.148 (AS48854) (address records, no CNAME)
www vs bare domain	Same network katkat.dk: 185.21.41.148 (AS48854) www.katkat.dk: 185.21.41.148 (AS48854)
Wildcard	Yes: any name under the zone resolves
Denial of existence	NSEC3 · 1 iteration · 1-byte salt RFC 9276 recommends 0 iterations and no salt
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 6/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

88ms

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

🏷️ SOA#

45ms

Field	Value
Serial	2026061101
Primary NS (MNAME)	ns1.curanet.dk
Responsible (RNAME)	hostmaster@curanet.dk
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	300s

📋 Registration#

✗ No registration data yet — queued for a WHOIS lookup

📋 WHOIS#

⏱️ Lookup Timing#

55ms

46ms

80ms

AAAA

47ms

TXT

222ms

CAA

49ms

HTTPS

64ms

TLSA

83ms

SOA

45ms

MTA-STS

48ms

DNSSEC

88ms

SRV

0ms

Total

628ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-30 22:22:01	497ms	2 NS 1 A 2 MX	🔒 Secure
2026-06-21 17:56:41	878ms	2 NS 1 A 2 MX	🔒 Secure
2026-06-21 09:35:05	1191ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-17 13:00:00 shown	628ms	2 NS 1 A 2 MX	🔒 Secure