java.cz - dns.ninja

`java.cz`

DNSSEC	⚠️ Not signed
A	87.236.197.56^{🇨🇿 COOLHOUSING-AS87.236.196.0/23 Network of Coolhousing}
		PTR	`unassigned-87.236.197.56.coolhousing.net`
NS	`ns1.p201.dns.oraclecloud.net` ⭐
		A	2600:2000:2100::c9^{🇺🇸 ORACLE-OCI-318982600:2000:2100::/44 Dynamic Network Services, Inc.}
			PTR	`ns1.p201.dns.oraclecloud.net`
		A	108.59.166.201^{🇺🇸 ORACLE-OCI-31898108.59.166.0/23 Dynamic Network Services, Inc.}
			PTR	`ns1.p201.dns.oraclecloud.net`
NS	`a1-160.akam.net` ⚠️ Not in parent delegation
		A	2600:1401:2::a0^{🇺🇸 Akamai2600:1401:2::/48 Technologies}
			PTR	`a1-160.akam.net`
			PTR	`ns1-160.akam.net`
		A	193.108.91.160^{🇳🇱 Akamai193.108.91.0/24 Technologies}
			PTR	`a1-160.akam.net`
			PTR	`ns1-160.akam.net`
NS	`a11-66.akam.net`
		A	2600:1480:1::42^{🇺🇸 Akamai2600:1480:1::/48 Technologies}
			PTR	`a11-66.akam.net`
			PTR	`ns4-66.akam.net`
		A	84.53.139.66^{🇳🇱 Akamai84.53.139.0/24 Technologies}
			PTR	`a11-66.akam.net`
			PTR	`ns4-66.akam.net`
NS	`a13-65.akam.net`
		A	2600:1480:800::41^{🇺🇸 Akamai2600:1480:800::/48 Technologies}
			PTR	`a13-65.akam.net`
			PTR	`ns2-65.akam.net`
		A	2.22.230.65^{🇳🇱 Akamai2.22.230.0/24 Technologies}
			PTR	`a13-65.akam.net`
			PTR	`ns2-65.akam.net`
NS	`a18-67.akam.net`
		A	2600:1480:4800::43^{🇺🇸 Akamai2600:1480:4800::/48 Technologies}
			PTR	`a18-67.akam.net`
		A	95.101.36.67^{🇳🇱 Akamai95.101.36.0/24 Technologies}
			PTR	`a18-67.akam.net`
NS	`ns2.p201.dns.oraclecloud.net`
		A	2600:2000:2110::c9^{🇺🇸 ORACLE-OCI-318982600:2000:2110::/44 Dynamic Network Services, Inc.}
			PTR	`ns2.p201.dns.oraclecloud.net`
		A	108.59.168.201^{🇺🇸 ORACLE-OCI-31898108.59.168.0/23 Dynamic Network Services, Inc.}
			PTR	`ns2.p201.dns.oraclecloud.net`
NS	`ns3.p201.dns.oraclecloud.net`
		A	2600:2000:2120::c9^{🇺🇸 ORACLE-OCI-318982600:2000:2120::/44 Dynamic Network Services, Inc.}
			PTR	`ns3.p201.dns.oraclecloud.net`
		A	108.59.170.201^{🇺🇸 ORACLE-OCI-31898108.59.170.0/23 Dynamic Network Services, Inc.}
			PTR	`ns3.p201.dns.oraclecloud.net`
NS	`ns4.p201.dns.oraclecloud.net`
		A	2600:2000:2130::c9^{🇺🇸 ORACLE-OCI-318982600:2000:2130::/44 Dynamic Network Services, Inc.}
			PTR	`ns4.p201.dns.oraclecloud.net`
		A	108.59.172.201^{🇺🇸 ORACLE-OCI-31898108.59.172.0/23 Dynamic Network Services, Inc.}
			PTR	`ns4.p201.dns.oraclecloud.net`
MX	`java.cz` ⭐
		A	87.236.197.56^{🇨🇿 COOLHOUSING-AS87.236.196.0/23 Network of Coolhousing}
			PTR	`unassigned-87.236.197.56.coolhousing.net`
MX	`mail.amaio.com`⁽²⁰⁾
TXT	`v=spf1 -all`
SOA	`ns1.p201.dns.oraclecloud.net`hostmaster@oracle.com 2025-11-11 #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=1780564638

WOT: SAFE (66/100)

MX for

java.cz

Subdomains

www.java.cz

Same first word

java.com.tr

java.eu

java.org.za

java.sa

java

java.mobi

java.com

java.social

java.ru

java.ro

java.se

java.market

java.com.tw

java.in

java.mx

java.business

java.hu

java.pro

java.dk

java.ee

java.al

java.at

java.nl

java.pt

java.org.ua

java.support

java.io

java.cz

java.vn

java.com.pl

java.co

java.security

java.uk

java.promo

java.christmas

java.ai

java.game

java.tel

java.email

java.am

java.co.za

java.fr

java.com.sg

java.kr

java.de

java.partners

java.net.id

java.uz

java.hr

java.ws

java.technology

java.im

java.cm

java.co.in

java.com.in

java.no

java.com.cn

java.su

java.be

java.com.co

java.org

java.in.ua

java.co.id

java.com.ua

java.co.jp

java.ge

java.net

java.pl

java.ca

java.eu.com

java.mn

java.com.mk

java.lt

java.sc

java.blue

java.ps

java.to

java.gg

java.lv

java.cx

java.nu

java.th

java.gr.jp

java.com.vn

java.com.es

java.kim

java.it

Similar names

vaja.ca

vaaj.us

vaja.us

aajv.cn

ajva.com

vjaa.com

ajva.ru

vaja.nl

vjaa.edu.vn

vaja.eu

vaja.ch

vaja.be

jaav.nl

vjaa.nl

avaj.co.uk

ajav.com

ajva.fr

vaaj.com.au

jvaa.com

jaav.com

ajva.net

vaja.me

aavj.com

avaj.ca

vaaj.dk

aajv.com

vaja.org

aajv.shop

ajva.org

jaav.co.uk

aajv.org

vjaa.cn

avaj.ru

vaja.de

vaja.co

avja.cn

ajva.dk

avaj.de

ajva.by

vaja.com

jvaa.cn

vaja.ru

aajv.fr

vaja.vn

ajav.net

jaav.de

avaj.com

vaja.cz

vaja.ir

vaaj.com

jaav.net

vjaa.org

vjaa.net

ajva.de

DNS History

28 records (11 active, 17 former)

●NSa1-160.akam.net2026-03-21 → 2026-06-04 · 3 obs

○ 2020-12-31 05:27:54
● 2026-03-21 00:51:26
● 2026-06-04 09:36:06

○NSa1-198.akam.net2017-05-27 → 2017-05-27 · 4 obs

○ 2017-01-14 08:47:46
● 2017-05-27 01:09:10
○ 2017-08-15 03:39:24
○ 2026-06-04 09:36:06

●NSa11-66.akam.net2026-03-21 → 2026-06-04 · 3 obs

○ 2020-12-31 05:27:54
● 2026-03-21 00:51:26
● 2026-06-04 09:36:06

●NSa13-65.akam.net2026-03-21 → 2026-06-04 · 3 obs

○ 2020-12-31 05:27:54
● 2026-03-21 00:51:26
● 2026-06-04 09:36:06

●NSa18-67.akam.net2026-03-21 → 2026-06-04 · 3 obs

○ 2020-12-31 05:27:54
● 2026-03-21 00:51:26
● 2026-06-04 09:36:06

○NSa2-67.akam.net2017-05-27 → 2017-05-27 · 4 obs

○ 2017-01-14 08:47:46
● 2017-05-27 01:09:10
○ 2017-08-15 03:39:24
○ 2026-06-04 09:36:06

○NSa22-64.akam.net2017-05-27 → 2017-05-27 · 4 obs

○ 2017-01-14 08:47:46
● 2017-05-27 01:09:10
○ 2017-08-15 03:39:24
○ 2026-06-04 09:36:06

○NSa24-65.akam.net2017-05-27 → 2017-05-27 · 4 obs

○ 2017-01-14 08:47:46
● 2017-05-27 01:09:10
○ 2017-08-15 03:39:24
○ 2026-06-04 09:36:06

○NSa3-66.akam.net2017-05-27 → 2017-05-27 · 4 obs

○ 2017-01-14 08:47:46
● 2017-05-27 01:09:10
○ 2017-08-15 03:39:24
○ 2026-06-04 09:36:06

○NSa9-67.akam.net2017-05-27 → 2017-05-27 · 4 obs

○ 2017-01-14 08:47:46
● 2017-05-27 01:09:10
○ 2017-08-15 03:39:24
○ 2026-06-04 09:36:06

○NSns1.p04.dynect.net2017-08-15 → 2020-12-31 · 5 obs

○ 2017-05-27 01:09:10
● 2017-08-15 03:39:24
● 2020-12-31 05:27:54
○ 2026-03-21 00:51:26
○ 2026-06-04 09:36:06

●NSns1.p201.dns.oraclecloud.net2026-03-21 → 2026-06-04 · 3 obs

○ 2020-12-31 05:27:54
● 2026-03-21 00:51:26
● 2026-06-04 09:36:06

○NSns2.p04.dynect.net2017-08-15 → 2020-12-31 · 5 obs

○ 2017-05-27 01:09:10
● 2017-08-15 03:39:24
● 2020-12-31 05:27:54
○ 2026-03-21 00:51:26
○ 2026-06-04 09:36:06

●NSns2.p201.dns.oraclecloud.net2026-03-21 → 2026-06-04 · 3 obs

○ 2020-12-31 05:27:54
● 2026-03-21 00:51:26
● 2026-06-04 09:36:06

○NSns3.p04.dynect.net2017-08-15 → 2020-12-31 · 5 obs

○ 2017-05-27 01:09:10
● 2017-08-15 03:39:24
● 2020-12-31 05:27:54
○ 2026-03-21 00:51:26
○ 2026-06-04 09:36:06

●NSns3.p201.dns.oraclecloud.net2026-03-21 → 2026-06-04 · 3 obs

○ 2020-12-31 05:27:54
● 2026-03-21 00:51:26
● 2026-06-04 09:36:06

○NSns4.p04.dynect.net2017-08-15 → 2020-12-31 · 5 obs

○ 2017-05-27 01:09:10
● 2017-08-15 03:39:24
● 2020-12-31 05:27:54
○ 2026-03-21 00:51:26
○ 2026-06-04 09:36:06

●NSns4.p201.dns.oraclecloud.net2026-03-21 → 2026-06-04 · 3 obs

○ 2020-12-31 05:27:54
● 2026-03-21 00:51:26
● 2026-06-04 09:36:06

○NSorcldns1.ultradns.com2015-06-01 → 2017-01-14 · 4 obs

● 2015-06-01 05:26:00
● 2017-01-14 08:47:46
○ 2017-05-27 01:09:10
○ 2026-06-04 09:36:06

○NSorcldns2.ultradns.net2015-06-01 → 2017-01-14 · 4 obs

● 2015-06-01 05:26:00
● 2017-01-14 08:47:46
○ 2017-05-27 01:09:10
○ 2026-06-04 09:36:06

○NSorcldns3.ultradns.biz2015-06-01 → 2017-01-14 · 4 obs

● 2015-06-01 05:26:00
● 2017-01-14 08:47:46
○ 2017-05-27 01:09:10
○ 2026-06-04 09:36:06

○NSorcldns4.ultradns.org2015-06-01 → 2017-01-14 · 4 obs

● 2015-06-01 05:26:00
● 2017-01-14 08:47:46
○ 2017-05-27 01:09:10
○ 2026-06-04 09:36:06

○NSorcldns5.ultradns.info2015-06-01 → 2017-01-14 · 4 obs

● 2015-06-01 05:26:00
● 2017-01-14 08:47:46
○ 2017-05-27 01:09:10
○ 2026-06-04 09:36:06

○NSorcldns6.ultradns.co.uk2015-06-01 → 2017-01-14 · 4 obs

● 2015-06-01 05:26:00
● 2017-01-14 08:47:46
○ 2017-05-27 01:09:10
○ 2026-06-04 09:36:06

●MXjava.cz2015-06-01 → 2026-06-04 · 2 obs

● 2015-06-01 05:26:00
● 2026-06-04 09:36:06

●MXmail.amaio.com2015-06-01 → 2026-06-04 · 2 obs

● 2015-06-01 05:26:00
● 2026-06-04 09:36:06

○A194.213.194.1472015-06-01 → 2017-08-15 · 4 obs

● 2015-06-01 05:26:00
● 2017-08-15 03:39:24
○ 2020-12-31 05:27:54
○ 2026-06-04 09:36:06

●A87.236.197.562020-12-31 → 2026-06-04 · 3 obs

○ 2017-08-15 03:39:24
● 2020-12-31 05:27:54
● 2026-06-04 09:36:06

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cz	a.ns.nic.cz, c.ns.nic.cz, b.ns.nic.cz, d.ns.nic.cz	-
java.cz	ns1.p201.dns.oraclecloud.net, ns2.p201.dns.oraclecloud.net, ns3.p201.dns.oraclecloud.net, ns4.p201.dns.oraclecloud.net...	-

✅ Authoritative Response

Server:2.22.230.65

NS records: ns1.p201.dns.oraclecloud.net, ns2.p201.dns.oraclecloud.net, ns3.p201.dns.oraclecloud.net, ns4.p201.dns.oraclecloud.net, a11-66.akam.net, a13-65.akam.net, a18-67.akam.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for java.cz (unsigned zone)

⏱️ Timing

Total: 1406ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`87.236.197.56`
NS	8	`ns2.p201.dns.oraclecloud.net, a11-66.akam.net...`
MX	2	`java.cz (pri: 10), mail.amaio.com (pri: 20)`
TXT	1	`v=spf1 -all`
SOA	1	`ns1.p201.dns.oraclecloud.net hostmaster.`

Analysis

Hierarchy

The domain www.java.cz falls under the parent java.cz.

Mail Server Role

java.cz handles its own mail, functioning as its own mail server.

mail.amaio.com is often seen acting as a mail server in combination with java.cz.

IP Addresses

java.cz resolves to just one IP address, 87.236.197.56.

Other host names, for instance intes.cz, hyperion2.mathan.cz and www.java.cz share IP numbers with java.cz.

Name Servers

Delegation for java.cz covers 8 name servers, including a1-160.akam.net, a11-66.akam.net, a13-65.akam.net and five others.

At least some of java.cz's name servers are shared with other domains, for example myvynassist.com, jll-marketplace.com, greatleasedeals.com and two more.

These name servers co-occur with ns1.p201.dns.oraclecloud.net, ns2.p201.dns.oraclecloud.net, ns3.p201.dns.oraclecloud.net and seven other name servers on a regular basis.

Host names that have two IP addresses:

a1-160.akam.net has two IP addresses: 193.108.91.160 and 2600:1401:2::a0.

a11-66.akam.net has two IP addresses: 84.53.139.66 and 2600:1480:1::42.

a13-65.akam.net has two IP addresses: 2.22.230.65 and 2600:1480:800::41.

a18-67.akam.net has two IP addresses: 95.101.36.67 and 2600:1480:4800::43.

ns1.p201.dns.oraclecloud.net has two IP addresses: 108.59.166.201 and 2600:2000:2100::c9.

ns2.p201.dns.oraclecloud.net has two IP addresses: 108.59.168.201 and 2600:2000:2110::c9.

ns3.p201.dns.oraclecloud.net has two IP addresses: 108.59.170.201 and 2600:2000:2120::c9.

ns4.p201.dns.oraclecloud.net has two IP addresses: 108.59.172.201 and 2600:2000:2130::c9.

Mail Servers

java.cz uses two mail servers, java.cz and mail.amaio.com.

Host names with one IP number:

java.cz directs to 87.236.197.56.