`kat-inst.si`

DNSSEC	⚠️ Not signed
A	52.19.51.154^{🇮🇪 Amazon52.18.0.0/15 EC2 DUB prefix}
		PTR	`ec2-52-19-51-154.eu-west-1.compute.amazonaws.com`
NS	`ns3.rkc.si` ⭐
		A	195.246.8.211^{🇸🇮 PERFTECH-SLOVENIA-AS195.246.0.0/19 PERFTECH IP SPACE}
			PTR	`as.rkc.si`
NS	`ns4.rkc.si`
		A	89.212.238.129^{🇸🇮 T-2-AS89.212.192.0/18 T-2 d.o.o. Provider Aggregated Block}
			PTR	`gw2.rkc.si`
MX	`as.rkc.si` ⭐
		A	195.246.8.211^{🇸🇮 PERFTECH-SLOVENIA-AS195.246.0.0/19 PERFTECH IP SPACE}
			PTR	`as.rkc.si`
TXT	`v=spf1 +a +mx include:spf.rkc.si +a:plesk.rkc.si -all`
TXT	`MS=ms38802984`
SOA	`ns3.rkc.si`plesk@rkc.si serial=1767601844

`si`

	DNSSEC	🔒 Signed (DS record present)
	NS	`b.dns.si` ⭐
	NS	`f.dns.si`
	NS	`h.dns.si`
	NS	`i.dns.si`
	NS	`k.dns.si`
	NS	`l.dns.si`
	SOA	`b.dns.si`dns@register.si serial=1778504417

Subdomains

mail.kat-inst.si

Same first word

kat-inst.si

Similar names

task-int.com

DNS History

7 records (4 active, 3 former)

●NSns3.rkc.si2015-08-10 → 2026-05-11 · 2 obs

● 2015-08-10 22:06:54
● 2026-05-11 13:54:30

●NSns4.rkc.si2015-08-10 → 2026-05-11 · 2 obs

● 2015-08-10 22:06:54
● 2026-05-11 13:54:30

●MXas.rkc.si2026-02-16 → 2026-05-11 · 3 obs

○ 2017-03-25 17:19:12
● 2026-02-16 14:07:24
● 2026-05-11 13:54:30

○MXmail.kat-inst.si2015-08-10 → 2017-03-25 · 4 obs

● 2015-08-10 22:06:54
● 2017-03-25 17:19:12
○ 2026-02-16 14:07:24
○ 2026-05-11 13:54:30

○A195.246.15.2132017-03-25 → 2017-03-25 · 4 obs

○ 2016-09-11 07:35:58
● 2017-03-25 17:19:12
○ 2026-02-16 14:07:24
○ 2026-05-11 13:54:30

○A195.246.15.872015-08-10 → 2016-09-11 · 4 obs

● 2015-08-10 22:06:54
● 2016-09-11 07:35:58
○ 2017-03-25 17:19:12
○ 2026-05-11 13:54:30

●A52.19.51.1542026-02-16 → 2026-05-11 · 3 obs

○ 2017-03-25 17:19:12
● 2026-02-16 14:07:24
● 2026-05-11 13:54:30

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
si	h.dns.si, l.dns.si, k.dns.si, f.dns.si...	-
kat-inst.si	ns3.rkc.si, ns4.rkc.si	2 records

✅ Authoritative Response

Server:195.246.8.211

NS records: ns3.rkc.si, ns4.rkc.si

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for kat-inst.si (unsigned zone)

⏱️ Timing

Total: 1617ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`52.19.51.154`
NS	2	`ns3.rkc.si, ns4.rkc.si`
MX	1	`as.rkc.si (pri: 10)`
TXT	2	`MS=ms38802984, v=spf1 +a +mx include:spf.rkc.si +a:ples`
SOA	1	`ns3.rkc.si plesk.rkc.si`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns3.rkc.si, ns4.rkc.si)

Analysis

Hierarchy

kat-inst.si is the parent of mail.kat-inst.si.

IP Addresses

kat-inst.si resolves to one IP number: 52.19.51.154.

Other host names such as ec2-52-19-51-154.eu-west-1.compute.amazonaws.com and fhsd.si share IP numbers with kat-inst.si.

Name Servers

kat-inst.si is delegated to two name servers ns3.rkc.si and ns4.rkc.si.

kat-inst.si shares the same name server setup as other domains, for instance zupnija-teharje.si, silvo-sinkovec.rkc.si, portal.rkc.si, madagaskar.missio.si and ofm.si.

Host names with one IP number:

ns3.rkc.si points to 195.246.8.211

ns4.rkc.si points to 89.212.238.129

Mail Servers

kat-inst.si is handled by a single mail server, as.rkc.si.

kat-inst.si shares the same mail server setup as other domains, for instance fsr.si, zupnija-nm-sv-lenart.rkc.si, katoliska-cerkev.si, rkc.si and bazilika.info.

as.rkc.si resolves to IP 195.246.8.211.

kat-inst.si - robtex.com

kat-inst.si

si