java-developers.cz - dns.ninja

🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`java-developers.cz`

DNSSEC	🔒 Signed (DS record present)
A	82.142.74.11^{🇨🇿 VODAFONE-CZ-AS82.142.64.0/18 Vodafone Czech Republic a.s.}
		PTR	`cms.1webit.cz`
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`
SOA	`ns.web4u.cz`admin@web4u.cz 2015-08-16 #1

`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=1788648443

Same first word

java-developers.com

java-developers.de

java-developers.cz

Previous names

jatro.cz

jatser.cz

jatu.cz

jatun.cz

jatur.cz

jatus.cz

jatvar.cz

jaty.cz

jatys.cz

jau.cz

jaudelam.cz

jaudio.cz

jaure-art.cz

jaure.cz

jaurisova.cz

jaurisova19.cz

jauvajs.cz

jauzfaktnevim.cz

java-chat.cz

java.cz

Next names

DNS History

5 records (3 active, 2 former)

●NSns.web4u.cz2015-12-02 → 2026-09-05 · 2 obs

● 2015-12-02 23:30:48
● 2026-09-05 23:52:22

●NSns2.web4u.cz2015-12-02 → 2026-09-05 · 2 obs

● 2015-12-02 23:30:48
● 2026-09-05 23:52:22

○A217.16.180.1592020-03-05 → 2020-03-05 · 4 obs

○ 2017-03-22 06:39:22
● 2020-03-05 00:24:06
○ 2026-09-01 02:28:58
○ 2026-09-05 23:52:22

○A217.16.180.1612015-12-02 → 2017-03-22 · 4 obs

● 2015-12-02 23:30:48
● 2017-03-22 06:39:22
○ 2020-03-05 00:24:06
○ 2026-09-05 23:52:22

●A82.142.74.112026-09-01 → 2026-09-05 · 3 obs

○ 2020-03-05 00:24:06
● 2026-09-01 02:28:58
● 2026-09-05 23:52:22

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cz	a.ns.nic.cz, b.ns.nic.cz, c.ns.nic.cz, d.ns.nic.cz	8 records
java-developers.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: 1555ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`82.142.74.11`
NS	2	`ns.web4u.cz, ns2.web4u.cz`
SOA	1	`ns.web4u.cz admin.web4u.cz`

📌 Glue Records Collected

Total: 12

In-bailiwick: 8 (a.ns.nic.cz, a.ns.nic.cz, b.ns.nic.cz...)

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

Analysis

IP Addresses

java-developers.cz resolves to one IP address: 82.142.74.11.

jsmetesari.cz, roubenkyrybin.cz, jrtech.cz and two other host names share IP numbers with java-developers.cz.

Name Servers

java-developers.cz has two authoritative name servers — ns2.web4u.cz and ns.web4u.cz.

java-developers.cz uses the same name servers as several other domains — among them dwtools.cz, glassbar.cz, eyesec.eu and two more.

Both ns2.web4u.cz and ns.web4u.cz have two IP addresses each. ns2.web4u.cz resolves to 85.207.53.12 and 2a02:a40:100:28ff::12; ns.web4u.cz resolves to 185.14.224.241 and 2001:1568:fd::241.