`mail.solution42.cz`

	DNSSEC	⚠️ Not signed
	A	`::ffff:3344:a3a7`
	A	51.68.163.167^{🇫🇷 OVH51.68.0.0/16}

`solution42.cz`

	DNSSEC	🔒 Signed (DS record present)
	A	2001:41d0:701:1100::15cc^{🇩🇪 OVH2001:41d0::/32 IPv6}
	A	51.68.163.167^{🇫🇷 OVH51.68.0.0/16}
	NS	`dns112.ovh.net` ⭐
	NS	`ns112.ovh.net`
	MX	`mail.solution42.cz` ⭐
	TXT	`3\|welcome`
	TXT	`l\|cz`
	TXT	`v=spf1 mx a ip4:51.68.163.167 ip6:0:0:0:0:0:ffff:3344:a3a7 include:_spf.googl...`
	TXT	`google-site-verification=ugOBUaSRBj9WtshvyAEltCi8AAvSFwtMHJywfVViDlw`
	TXT	`1\|www.solution42.cz`
	SOA	`dns112.ovh.net`tech@ovh.net 2026-04-04 #0

PTR for

167.163.68.51.in-addr.arpa

MX for

kvalitni-cerpadla.cz

solution42.cz

vlacek.cz

www.vlacek.cz

Same first word

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DNS History

2 records (2 active, 0 former)

●A::ffff:3344:a3a72026-02-24 → 2026-04-15 · 3 obs

○ 2019-03-29 21:58:04
● 2026-02-24 18:30:40
● 2026-04-15 20:10:14

●A51.68.163.1672019-03-29 → 2026-04-15 · 2 obs

● 2019-03-29 21:58:04
● 2026-04-15 20:10:14

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cz	a.ns.nic.cz, c.ns.nic.cz, b.ns.nic.cz, d.ns.nic.cz	-
solution42.cz	ns112.ovh.net, dns112.ovh.net	-

✅ Authoritative Response

Server:5.196.45.209

NS records: ns112.ovh.net, dns112.ovh.net

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 1201ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`51.68.163.167`
AAAA	1	`::ffff:3344:a3a7`

Analysis

Mail Server Role

mail.solution42.cz serves as a mail server for kvalitni-cerpadla.cz, solution42.cz, vlacek.cz and www.vlacek.cz.

IP Addresses

mail.solution42.cz points to two IPs: ::ffff:3344:a3a7 and 51.68.163.167.

Other host names, for instance www.vlacek.cz, aulix.sk, kvalitni-cerpadla.cz, solution42.cz and vlacek.cz share IP numbers with mail.solution42.cz.

mail.solution42.cz - robtex.com