`vyvoj-software.cz`

DNSSEC	🔒 Signed (DS record present)
A	2a03:b780:1:1:216:3eff:fe00:e1e^{🇨🇿 IGNUM-AS2a03:b780::/32 Webglobe s.r.o. H90}
		PTR	`h90-w12.hosting90.cz`
A	37.46.82.94^{🇨🇿 IGNUM-AS37.46.80.0/21 Webglobe s.r.o. H90}
NS	`ns1.hosting90.cz` ⭐
		A	2a03:b780::1:1^{🇨🇿 IGNUM-AS2a03:b780::/32 Webglobe s.r.o. H90}
			PTR	`ns1.hosting90.cz`
		A	130.193.8.82^{🇨🇿 IGNUM-AS130.193.8.0/21 Webglobe s.r.o. H90}
			PTR	`ns1.hosting90.cz`
NS	`ns2.hosting90.cz`
		A	2001:880:0:15::10c^{🇩🇪 ONE-NETWORK2001:880::/32}
			PTR	`ns2.hosting90.cz`
		A	185.102.21.207^{🇨🇿 ONE-NETWORK185.102.21.0/24}
			PTR	`ns2.hosting90.cz`
NS	`ns3.hosting90.net`
		A	2604:a880:800:10::696:f001^{🇺🇸 DIGITALOCEAN2604:a880:800::/48 DigitalOcean}
			PTR	`ns3.hosting90.net`
		A	104.236.202.83^{🇺🇸 DIGITALOCEAN104.236.192.0/18 DigitalOcean}
			PTR	`ns3.hosting90.net`
SOA	`ns1.hosting90.cz`admin@hosting90.cz 2026-06-16 #2

`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=1786526243

Same first word

vyvoj-software.cz

DNS History

9 records (5 active, 4 former)

●NSns1.hosting90.cz2016-11-27 → 2026-08-12 · 3 obs

○ 2015-12-09 17:08:52
● 2016-11-27 15:09:00
● 2026-08-12 09:49:46

○NSns1.ignum.com2015-08-13 → 2015-08-13 · 3 obs

● 2015-08-13 06:17:56
○ 2015-12-09 17:08:52
○ 2026-08-12 09:49:46

●NSns2.hosting90.cz2016-11-27 → 2026-08-12 · 3 obs

○ 2015-12-09 17:08:52
● 2016-11-27 15:09:00
● 2026-08-12 09:49:46

○NSns2.ignum.cz2015-08-13 → 2015-08-13 · 3 obs

● 2015-08-13 06:17:56
○ 2015-12-09 17:08:52
○ 2026-08-12 09:49:46

●NSns3.hosting90.net2016-11-27 → 2026-08-12 · 3 obs

○ 2015-12-09 17:08:52
● 2016-11-27 15:09:00
● 2026-08-12 09:49:46

○MXbaghdad.core.ignum.cz2015-08-13 → 2015-08-13 · 3 obs

● 2015-08-13 06:17:56
○ 2015-12-09 17:08:52
○ 2026-08-12 09:49:46

○A217.31.49.202015-08-13 → 2015-08-13 · 3 obs

● 2015-08-13 06:17:56
○ 2015-12-09 17:08:52
○ 2026-08-12 09:49:46

●A2a03:b780:1:1:216:3eff:fe00:e1e2016-11-27 → 2026-08-12 · 6 obs

○ 2015-12-09 17:08:52
● 2016-11-27 15:09:00
● 2017-11-14 12:12:34
○ 2026-07-21 12:23:28
● 2026-07-31 15:34:14
● 2026-08-12 09:49:46

●A37.46.82.942016-11-27 → 2026-08-12 · 6 obs

○ 2015-12-09 17:08:52
● 2016-11-27 15:09:00
● 2017-11-14 12:12:34
○ 2026-07-21 12:23:28
● 2026-07-31 15:34:14
● 2026-08-12 09:49:46

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cz	a.ns.nic.cz, b.ns.nic.cz, c.ns.nic.cz, d.ns.nic.cz	-
vyvoj-software.cz	ns1.hosting90.cz, ns2.hosting90.cz, ns3.hosting90.net	-

✅ Authoritative Response

Server:130.193.8.82

NS records: ns1.hosting90.cz, ns2.hosting90.cz, ns3.hosting90.net

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 1445ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`37.46.82.94`
AAAA	1	`2a03:b780:1:1:216:3eff:fe00:e1e`
NS	3	`ns2.hosting90.cz, ns3.hosting90.net...`
SOA	1	`ns1.hosting90.cz admin.hosting90.cz`

Analysis

IP Addresses

vyvoj-software.cz resolves to the IP addresses 37.46.82.94 and 2a03:b780:1:1:216:3eff:fe00:e1e

refiu.cz, loma-soft.cz, jagu.us plus two other host names have IP numbers in common with vyvoj-software.cz.

Name Servers

Three name servers are authoritative for vyvoj-software.cz: ns1.hosting90.cz, ns2.hosting90.cz and ns3.hosting90.net.

vyvoj-software.cz shares at least some of its name servers with other domains, including drvalon.com, apptocloud.co.uk, pronagro.cz and two others.

These name servers are frequently paired with the name servers ns1.hostingzdarma.cz, ns2.hostingzdarma.cz and ns3.hosting-zdarma.net.

ns1.hosting90.cz resolves to 130.193.8.82 and 2a03:b780::1:1. ns2.hosting90.cz resolves to 185.102.21.207 and 2001:880:0:15::10c. ns3.hosting90.net resolves to 104.236.202.83 and 2604:a880:800:10::696:f001. All three hostnames point to two IP numbers each.

vyvoj-software.cz - robtex.com