`mail.alesruzicka.com`

DNSSEC	⚠️ Not signed
A	2a00:4b40:aaaa:2101:45:13:137:121^{🇸🇰 WEBSUPPORT-SRO-SK-AS2a00:4b40::/32}
		PTR	`m1-u5-ing.websupport.hu`
A	45.13.137.122^{🇸🇰 WEBSUPPORT-SRO-SK-AS45.13.137.0/24}

`alesruzicka.com`

	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}
	NS	`ns1.websupport.cz` ⭐
	NS	`ns2.websupport.cz`
	NS	`ns3.websupport.eu`
	MX	`mx10.websupport.cz` ⭐
	MX	`mx20.websupport.cz`⁽¹⁰⁰⁾
	TXT	`v=spf1 a mx include:_spf.websupport.cz ?all`
	TXT	`spf2.0/pra a mx include:_sid.websupport.cz ?all`
	SOA	`ns1.websupport.cz`admin@websupport.cz serial=1773501253

Same first word

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DNS History

3 records (2 active, 1 former)

●A2a00:4b40:aaaa:2101:45:13:137:1212026-04-05 → 2026-05-12 · 3 obs

○ 2016-04-26 01:54:24
● 2026-04-05 15:42:14
● 2026-05-12 08:41:14

○A37.157.195.1322015-06-20 → 2016-04-26 · 4 obs

● 2015-06-20 19:59:30
● 2016-04-26 01:54:24
○ 2026-04-05 15:42:14
○ 2026-05-12 08:41:14

●A45.13.137.1222026-04-05 → 2026-05-12 · 3 obs

○ 2016-04-26 01:54:24
● 2026-04-05 15:42:14
● 2026-05-12 08:41:14

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	b.gtld-servers.net, h.gtld-servers.net, j.gtld-servers.net, i.gtld-servers.net...	-
alesruzicka.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

⚠️ Insecure (no DNSSEC)

No DS record for alesruzicka.com (unsigned zone)

⏱️ Timing

Total: 487ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`45.13.137.122`
AAAA	1	`2a00:4b40:aaaa:2101:45:13:137:121`

Analysis

IP Addresses

mail.alesruzicka.com resolves to two IP numbers: 2a00:4b40:aaaa:2101:45:13:137:121 and 45.13.137.122.

other host names including mail.projekt-parabelum.cz, mail.autocentr-hyundai.cz, mail.esd.cz, mail.rwm.cz and mail.tech-store.cz share IP numbers with mail.alesruzicka.com.

mail.alesruzicka.com - robtex.com