`web-master.cz`

DNSSEC	⚠️ Not signed
NS	`ns1.savana.cz` ⚠️ Not in zone NS records
		A	2a00:1e40:a:53::5^{🇸🇰 IGNUM-AS2a00:1e40:a::/48}
			PTR	`ns1-bra.core.webglobe.com`
		A	185.65.223.35^{🇸🇰 IGNUM-AS185.65.223.0/24}
			PTR	`ns1-bra.core.webglobe.com`
NS	`ns2.savana.cz` ⚠️ Not in zone NS records
		A	2001:1ab0:7e1e:2::5^{🇨🇿 IGNUM-AS2001:1ab0::/32 Network of Ignum s.r.o. Czech Republic http://www.ignum.cz/}
			PTR	`ns2-prg.core.webglobe.com`
		A	217.31.48.201^{🇨🇿 IGNUM-AS217.31.48.0/20 Network of Ignum s.r.o. Czech Republic http://www.ignum.cz/}
			PTR	`ns2-prg.core.webglobe.com`

`cz`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.ns.nic.cz` ⭐
	NS	`b.ns.nic.cz`
	NS	`c.ns.nic.cz`
	NS	`d.ns.nic.cz`
	SOA	`a.ns.nic.cz`hostmaster@nic.cz serial=1775951257

2 records (2 active, 0 former)

●NSns1.savana.cz2026-03-02 → 2026-04-12 · 2 obs

● 2026-03-02 14:54:52
● 2026-04-12 00:37:12

●NSns2.savana.cz2026-03-02 → 2026-04-12 · 2 obs

● 2026-03-02 14:54:52
● 2026-04-12 00:37:12

Zone	Nameservers	Glue
cz	a.ns.nic.cz, b.ns.nic.cz, c.ns.nic.cz, d.ns.nic.cz	-
web-master.cz	ns1.savana.cz, ns2.savana.cz	-

Server:185.65.223.35

NS records: ns1.savana.cz, ns2.savana.cz

⚠️ Insecure (no DNSSEC)

No DS record for web-master.cz (unsigned zone)

Total: 1535ms | Queries: -

Type	Count	Sample Data

web-master.cz is delegated to two name servers ns1.savana.cz and ns2.savana.cz.

web-master.cz shares the same name server setup as other domains, for instance cambridgeenglish.ch, barieroveploty.sk, prolovce.com, prolovce.eu and webik.cz.

web-master.cz at least partially shares name servers with other domains, for instance bikerscrown.cz, mentari.eu, czech.design, kyslikove-koncentratory.eu and isrg.cz.

these name servers are often used together with ns3.savana.cz, ns3.webglobe.com, ns1.webglobe.cz and ns2.webglobe.cz.

Host names with two IP numbers: