katalogica.dk

📜 Historical scan 2026-06-20 00:14:41 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

katalogica.dk is a .dk domain served by 3 nameservers (ns1.sdu.dk, ns2.sdu.dk, ns3.sdu.dk). It was registered on 31 October 2024 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 51.20.147.156 is hosted by Amazon.com, Inc. (AS16509) in Sweden. Mail is handled by .. 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#

3 records 113ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.sdu.dk	130.225.155.136	ns1.sdu.dk	AS1835 FSKNET-DK Forskningsnettet - Danish network for Research and Education
ns2.sdu.dk	130.225.155.148	ns2.sdu.dk	AS1835 FSKNET-DK Forskningsnettet - Danish network for Research and Education
ns3.sdu.dk	193.163.227.4	ns3.sdu.dk	AS44328 Region Syddanmark

🌍 A Records#

1 records 109ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
51.20.147.156	21600s	ec2-51-20-147-156.eu-north-1.compute.amazonaws.com	AS16509	Amazon.com, Inc.	51.20.0.0/14	🇸🇪 Sweden	Stockholm

📧 MX Records#

1 records 108ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	21600s	. Null MX — domain accepts no email (RFC 7505)

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 501ms

TXT Record
v=spf1 -all

✉️ SPF#

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

📨 DMARC#

Policy	Record (_dmarc.katalogica.dk)
p=reject	v=DMARC1; p=reject; sp=reject;

📬 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

🔎 SPF check#

zone-wide SPF report

DNS lookups: 0/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

284ms

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

🏷️ SOA#

104ms

Field	Value
Serial	163
Primary NS (MNAME)	ns1.sdu.dk
Responsible (RNAME)	dns@sdu.dk
Refresh	10800s
Retry	3600s
Expire	2419200s
Minimum (neg-cache TTL)	900s

📋 Registration#

WHOIS fetched 2026-07-27 07:03:43

Field	Value
Registrar	dns.services ApS
Registered	2024-10-31
Expires	2026-10-30 (5d)

📋 WHOIS#

⏱️ Lookup Timing#

113ms

109ms

108ms

AAAA

119ms

TXT

501ms

CAA

113ms

HTTPS

4047ms

TLSA

114ms

SOA

104ms

MTA-STS

182ms

DNSSEC

284ms

SRV

1098ms

Total

4369ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-30 02:52:20	5248ms	3 NS 0 A 0 MX	⚠️ Bogus
2026-09-29 13:47:17	8331ms	3 NS 0 A 0 MX	⚠️ Bogus
2026-08-31 19:29:50	5491ms	3 NS 0 A 0 MX	⚠️ Bogus
2026-08-27 18:19:01	5338ms	3 NS 0 A 0 MX	⚠️ Bogus
2026-08-24 03:47:19	4899ms	3 NS 0 A 0 MX	⚠️ Bogus
2026-08-23 02:02:32	6582ms	3 NS 0 A 0 MX	⚠️ Bogus
2026-08-22 01:51:51	5225ms	3 NS 0 A 0 MX	⚠️ Bogus
2026-08-21 01:42:39	5474ms	3 NS 0 A 0 MX	⚠️ Bogus
2026-08-20 00:33:08	18809ms	3 NS 0 A 0 MX	⚠️ Bogus
2026-08-18 23:49:34	20625ms	3 NS 0 A 0 MX	⚠️ Bogus
2026-08-17 22:51:12	5365ms	3 NS 0 A 0 MX	⚠️ Bogus
2026-08-16 20:52:38	5373ms	3 NS 0 A 0 MX	⚠️ Bogus
2026-08-15 15:45:37	5078ms	3 NS 0 A 0 MX	⚠️ Bogus
2026-08-13 22:15:17	5405ms	3 NS 0 A 0 MX	⚠️ Bogus
2026-08-11 13:54:27	7667ms	3 NS 0 A 0 MX	⚠️ Bogus
2026-08-10 08:24:57	6843ms	3 NS 1 A 1 MX	🔒 Secure
2026-08-03 10:33:35	4508ms	3 NS 1 A 1 MX	🔒 Secure
2026-07-27 06:56:57	933ms	3 NS 1 A 1 MX	🔒 Secure
2026-07-26 06:53:17	8480ms	3 NS 1 A 1 MX	🔒 Secure
2026-07-20 14:51:04	5179ms	3 NS 1 A 1 MX	🔒 Secure
2026-07-18 02:15:40	8522ms	3 NS 1 A 1 MX	🔒 Secure
2026-07-15 23:29:18	4499ms	3 NS 1 A 1 MX	🔒 Secure
2026-07-10 00:05:35	10736ms	3 NS 1 A 1 MX	🔒 Secure
2026-07-06 13:59:54	4529ms	3 NS 1 A 1 MX	🔒 Secure
2026-07-03 13:54:35	6787ms	3 NS 1 A 1 MX	🔒 Secure