visualdata.cz - dns.ninja

`visualdata.cz`

DNSSEC	🔒 Signed (DS record present)
A	2001:1568::14^{🇨🇿 WEB4U2001:1568::/33}
		PTR	`php7.web4u.cz`
A	81.91.86.14^{🇨🇿 WEB4U81.91.80.0/21}
NS	`ns2.web4u.cz` ⭐
		A	2a02:a40:100:28ff::12^{🇨🇿 BlueTone-AS2a02:a40::/32 Ceske Radiokomunikace, a.s.}
			PTR	`ns2.web4u.cz`
		A	85.207.53.12^{🇨🇿 BlueTone-AS85.207.0.0/16 BlueTone-CRa-CZ Fourth address block}
			PTR	`ns2.web4u.cz`
NS	`ns.web4u.cz`
		A	2001:1568:fd::241^{🇨🇿 WEB4U2001:1568::/33}
			PTR	`ns.web4u.cz`
		A	185.14.224.241^{🇨🇿 WEB4U185.14.224.0/23}
			PTR	`ns.web4u.cz`
MX	`visualdata-cz.mail.protection.outlook.com` ⭐
		A	2a01:111:f403:ca04::2^{🇮🇪 Microsoft2a01:111:f000::/36}
			PTR	`mail-du2pr03cu00102.inbound.protection.outlook.com`
		A	2a01:111:f403:ca09::^{🇳🇱 Microsoft2a01:111:f000::/36}
			PTR	`mail-am3pr04cu00500.inbound.protection.outlook.com`
		A	2a01:111:f403:ca09::2^{🇳🇱 Microsoft2a01:111:f000::/36}
			PTR	`mail-am0pr83cu00402.inbound.protection.outlook.com`
		A	2a01:111:f403:ca09::6^{🇳🇱 Microsoft2a01:111:f000::/36}
			PTR	`mail-am4pr0401cu00106.inbound.protection.outlook.com`
		A	52.101.68.12^{🇮🇪 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-db9pr02cu00204.inbound.protection.outlook.com`
		A	52.101.68.18^{🇮🇪 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-db4pr02cu00302.inbound.protection.outlook.com`
		A	52.101.73.2^{🇳🇱 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-as9pr07cu00302.inbound.protection.outlook.com`
		A	52.101.73.153^{🇳🇱 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-as8pr05cu00401.inbound.protection.outlook.com`
TXT	`MS=ms18087512`
TXT	`v=spf1 include:spf.protection.outlook.com -all`
SOA	`ns.web4u.cz`admin@web4u.cz 2023-06-02 #3

`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=1785023239

Same first word

Similar names

datavisual.it

datavisual.com.co

datavisual.be

datavisual.net

datavisual.com

datavisual.eu

datavisual.co.uk

datavisual.cn

datavisual.nl

DNS History

18 records (5 active, 13 former)

○NSalfa.ns.active24.cz2015-07-16 → 2015-07-16 · 3 obs

● 2015-07-16 17:47:52
○ 2015-11-30 10:46:22
○ 2026-07-26 00:49:06

○NSbeta.ns.active24.cz2015-07-16 → 2015-07-16 · 3 obs

● 2015-07-16 17:47:52
○ 2015-11-30 10:46:22
○ 2026-07-26 00:49:06

○NSgama.ns.active24.sk2015-07-16 → 2015-07-16 · 3 obs

● 2015-07-16 17:47:52
○ 2015-11-30 10:46:22
○ 2026-07-26 00:49:06

●NSns.web4u.cz2026-05-19 → 2026-07-26 · 3 obs

○ 2016-09-25 05:13:46
● 2026-05-19 02:04:14
● 2026-07-26 00:49:06

○NSns1.thinline.cz2015-11-30 → 2016-09-25 · 5 obs

○ 2015-07-16 17:47:52
● 2015-11-30 10:46:22
● 2016-09-25 05:13:46
○ 2026-05-19 02:04:14
○ 2026-07-26 00:49:06

○NSns2.thinline.cz2015-11-30 → 2016-09-25 · 5 obs

○ 2015-07-16 17:47:52
● 2015-11-30 10:46:22
● 2016-09-25 05:13:46
○ 2026-05-19 02:04:14
○ 2026-07-26 00:49:06

●NSns2.web4u.cz2026-05-19 → 2026-07-26 · 3 obs

○ 2016-09-25 05:13:46
● 2026-05-19 02:04:14
● 2026-07-26 00:49:06

○NSns3.cesky-hosting.eu2015-11-30 → 2016-09-25 · 5 obs

○ 2015-07-16 17:47:52
● 2015-11-30 10:46:22
● 2016-09-25 05:13:46
○ 2026-05-19 02:04:14
○ 2026-07-26 00:49:06

○MXemail.ignum.cz2015-07-16 → 2015-07-16 · 3 obs

● 2015-07-16 17:47:52
○ 2015-11-30 10:46:22
○ 2026-07-26 00:49:06

○MXemail2.ignum.cz2015-07-16 → 2015-07-16 · 3 obs

● 2015-07-16 17:47:52
○ 2015-11-30 10:46:22
○ 2026-07-26 00:49:06

○MXmx1b20.thinline.cz2015-11-30 → 2016-09-25 · 5 obs

○ 2015-07-16 17:47:52
● 2015-11-30 10:46:22
● 2016-09-25 05:13:46
○ 2026-05-19 02:04:14
○ 2026-07-26 00:49:06

○MXmx1d10.thinline.cz2015-11-30 → 2016-09-25 · 5 obs

○ 2015-07-16 17:47:52
● 2015-11-30 10:46:22
● 2016-09-25 05:13:46
○ 2026-05-19 02:04:14
○ 2026-07-26 00:49:06

●MXvisualdata-cz.mail.protection.outlook.com2026-05-19 → 2026-07-26 · 3 obs

○ 2016-09-25 05:13:46
● 2026-05-19 02:04:14
● 2026-07-26 00:49:06

●A2001:1568::142026-05-19 → 2026-07-26 · 3 obs

○ 2016-09-25 05:13:46
● 2026-05-19 02:04:14
● 2026-07-26 00:49:06

○A2a00:1ed0:2:0:1:5bef:c847:12015-11-30 → 2016-09-25 · 5 obs

○ 2015-07-16 17:47:52
● 2015-11-30 10:46:22
● 2016-09-25 05:13:46
○ 2026-05-19 02:04:14
○ 2026-07-26 00:49:06

○A62.109.128.912015-07-16 → 2015-07-16 · 3 obs

● 2015-07-16 17:47:52
○ 2015-11-30 10:46:22
○ 2026-07-26 00:49:06

●A81.91.86.142026-05-19 → 2026-07-26 · 3 obs

○ 2016-09-25 05:13:46
● 2026-05-19 02:04:14
● 2026-07-26 00:49:06

○A91.239.200.712015-11-30 → 2016-09-25 · 5 obs

○ 2015-07-16 17:47:52
● 2015-11-30 10:46:22
● 2016-09-25 05:13:46
○ 2026-05-19 02:04:14
○ 2026-07-26 00:49:06

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cz	a.ns.nic.cz, b.ns.nic.cz, c.ns.nic.cz, d.ns.nic.cz	-
visualdata.cz	ns.web4u.cz, ns2.web4u.cz	4 records

✅ Authoritative Response

Server:85.207.53.12

NS records: ns.web4u.cz, ns2.web4u.cz

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 1218ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`81.91.86.14`
AAAA	1	`2001:1568::14`
NS	2	`ns.web4u.cz, ns2.web4u.cz`
MX	1	`visualdata-cz.mail.protection.outlook.co`
TXT	2	`MS=ms18087512, v=spf1 include:spf.protection.outlook.co`
SOA	1	`ns.web4u.cz admin.web4u.cz`

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (ns.web4u.cz, ns2.web4u.cz, ns.web4u.cz...)

Analysis

IP Addresses

visualdata.cz has two IP addresses: 81.91.86.14 and 2001:1568::14

www2.oaneveklov.cz, pivovarskydvurplasy.cz, digitalcoin.cz plus two other host names have IP numbers in common with visualdata.cz.

Name Servers

visualdata.cz is delegated to two name servers: ns2.web4u.cz and ns.web4u.cz.

The name server configuration of visualdata.cz is shared with other domains, for instance nsn-team.cz, hrouzek.cz, g8band.net and two others.

ns2.web4u.cz and ns.web4u.cz each resolve to two IP addresses: ns2.web4u.cz points to 85.207.53.12 and 2a02:a40:100:28ff::12, while ns.web4u.cz points to 185.14.224.241 and 2001:1568:fd::241.

Mail Servers

visualdata.cz uses one mail server — visualdata-cz.mail.protection.outlook.com.

visualdata-cz.mail.protection.outlook.com has 8 IP addresses: 52.101.68.12, 52.101.68.18, 52.101.73.2 plus 5 more.