`mail.virtbook.com`

DNSSEC	⚠️ Not signed
A	83.167.253.3^{🇨🇿 MASTER-AS83.167.224.0/19 MASTER-NET-5}
		PTR	`mail.computermedia.cz`

`virtbook.com`

	DNSSEC	🔒 Signed (DS record present)
	A	77.93.198.5^{🇨🇿 MASTER-AS77.93.192.0/19 MASTER-NET-4}
	NS	`ns1.websupport.cz` ⭐
	NS	`ns2.websupport.cz`
	NS	`ns3.websupport.eu`
	MX	`mail.virtbook.com` ⭐
	SOA	`ns1.websupport.cz`admin@websupport.cz serial=1762586277

MX for

virtbook.com

Same first word

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DNS History

1 record (1 active, 0 former)

●A83.167.253.32015-05-29 → 2026-04-13 · 2 obs

● 2015-05-29 15:39:54
● 2026-04-13 04:41:32

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net, e.gtld-servers.net...	-
virtbook.com	ns1.websupport.cz, ns2.websupport.cz, ns3.websupport.eu	-

✅ Authoritative Response

Server:45.10.97.11

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: 941ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`83.167.253.3`

Analysis

Mail Server Role

mail.virtbook.com serves as the mail server for virtbook.com.

IP Addresses

mail.virtbook.com resolves to a single IP address: 83.167.253.3.

Other host names, such as mail.iskola.sk and mail.eduposters.com, share IP numbers with mail.virtbook.com.

mail.virtbook.com - robtex.com