katalogica.dk

📜 Historical scan 2026-06-24 20:27:38 · ← 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 45ms

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 43ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
51.20.147.156	28800s	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 67ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	28800s	. 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 317ms

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#

83ms

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

🏷️ SOA#

41ms

Field	Value
Serial	166
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 (6d)

📋 WHOIS#

⏱️ Lookup Timing#

45ms

43ms

67ms

AAAA

43ms

TXT

317ms

CAA

48ms

HTTPS

4028ms

TLSA

86ms

SOA

41ms

MTA-STS

87ms

DNSSEC

83ms

SRV

151ms

Total

4415ms

🕐 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