`mail.silentcomputer.cz`

	DNSSEC	⚠️ Not signed
	A	2a00:4b40:aaaa:2005::6^{🇸🇰 WEBSUPPORT-SRO-SK-AS2a00:4b40::/32}
	A	37.9.175.164^{🇸🇰 WEBSUPPORT-SRO-SK-AS37.9.175.0/24}

`silentcomputer.cz`

	DNSSEC	🔒 Signed (DS record present)
	A	2a00:4b40:aaaa:2005::7^{🇸🇰 WEBSUPPORT-SRO-SK-AS2a00:4b40::/32}
	A	37.9.175.164^{🇸🇰 WEBSUPPORT-SRO-SK-AS37.9.175.0/24}
	NS	`ns1.websupport.cz` ⭐
	NS	`ns2.websupport.cz`
	NS	`ns3.websupport.eu`
	MX	`mailin1.silentcomputer.cz` ⭐
	MX	`mailin2.silentcomputer.cz`⁽¹⁰⁰⁾
	SOA	`ns1.websupport.cz`admin@websupport.cz serial=1710545020

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DNS History

2 records (2 active, 0 former)

●A2a00:4b40:aaaa:2005::62026-04-04 → 2026-04-13 · 2 obs

● 2026-04-04 07:56:20
● 2026-04-13 11:14:18

●A37.9.175.1642026-04-04 → 2026-04-13 · 2 obs

● 2026-04-04 07:56:20
● 2026-04-13 11:14:18

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cz	a.ns.nic.cz, b.ns.nic.cz, c.ns.nic.cz, d.ns.nic.cz	-
silentcomputer.cz	ns1.websupport.cz, ns2.websupport.cz, ns3.websupport.eu	-

✅ Authoritative Response

Server:185.71.159.12

NS records: ns1.websupport.cz, ns2.websupport.cz, ns3.websupport.eu

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 896ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`37.9.175.164`
AAAA	1	`2a00:4b40:aaaa:2005::6`

Analysis

IP Addresses

mail.silentcomputer.cz resolves to two IP numbers: 2a00:4b40:aaaa:2005::6 and 37.9.175.164.

other host names including mailin1.kristanov.cz, skola.zsbysice.cz, jataya.net, www.tog.cz and mex.pnsp.cz share IP numbers with mail.silentcomputer.cz.

mail.silentcomputer.cz - robtex.com