`mx4.netsystem.sk`

DNSSEC	⚠️ Not signed
A	91.217.33.172^{🇸🇰 AIRNET-SK91.217.33.0/24 AIRNET s.r.o.}
		PTR	`mx4.netsystem.sk`

`netsystem.sk`

	DNSSEC	⚠️ Not signed
	A	83.167.249.7^{🇨🇿 MASTER-AS83.167.224.0/19 MASTER-NET-5}
	NS	`ns1.netsystem.sk` ⭐
	NS	`ns.netsystem.sk`
	NS	`ns2.netsystem.sk`
	MX	`mail.netsystem.sk` ⭐
	TXT	`v=spf1 mx a ip4:213.215.83.0/26 ip4:193.87.102.16 ip4:91.217.33.171 include:_...`
	SOA	`ns.netsystem.sk`admin@netsystem.sk serial=202009718

📈 Tranco rank: #993,751

PTR for

172.33.217.91.in-addr.arpa

Same first word

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m4x.dk

4xm.cc

x4m.ru

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m4x.com

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m4x.info

DNS History

1 record (1 active, 0 former)

●A91.217.33.1722026-02-14 → 2026-04-14 · 2 obs

● 2026-02-14 17:29:42
● 2026-04-14 16:05:56

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
sk	e.tld.sk, g.tld.sk, f.tld.sk, h.tld.sk	-
netsystem.sk	ns1.netsystem.sk, ns2.netsystem.sk	2 records

✅ Authoritative Response

Server:91.217.33.172

NS records: ns1.netsystem.sk, ns2.netsystem.sk

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for netsystem.sk (unsigned zone)

⏱️ Timing

Total: 3549ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`91.217.33.172`

📌 Glue Records Collected

Total: 2

In-bailiwick: 2 (ns1.netsystem.sk, ns2.netsystem.sk)

Analysis

IP Addresses

mx4.netsystem.sk points to an IP address: 91.217.33.172.

other host names include mail1.rtt.sk, ns.akko.sk, ns.edhardy.sk, ns.lipican.sk and mail2.oui.sk; they share IP numbers with mx4.netsystem.sk.

mx4.netsystem.sk - robtex.com

mx4.netsystem.sk

netsystem.sk