`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=1781342236

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.md

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.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 → 2026-06-13 · 3 obs

○ 2020-12-31 05:27:54
● 2026-03-21 00:51:26
● 2026-06-13 09:52:14

○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
○ 2026-06-13 09:52:14

●NSa11-66.akam.net2026-03-21 → 2026-06-13 · 3 obs

○ 2020-12-31 05:27:54
● 2026-03-21 00:51:26
● 2026-06-13 09:52:14

●NSa13-65.akam.net2026-03-21 → 2026-06-13 · 3 obs

○ 2020-12-31 05:27:54
● 2026-03-21 00:51:26
● 2026-06-13 09:52:14

●NSa18-67.akam.net2026-03-21 → 2026-06-13 · 3 obs

○ 2020-12-31 05:27:54
● 2026-03-21 00:51:26
● 2026-06-13 09:52:14

○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
○ 2026-06-13 09:52:14

○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
○ 2026-06-13 09:52:14

○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
○ 2026-06-13 09:52:14

○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
○ 2026-06-13 09:52:14

○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
○ 2026-06-13 09:52:14

○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
○ 2026-06-13 09:52:14

●NSns1.p201.dns.oraclecloud.net2026-03-21 → 2026-06-13 · 3 obs

○ 2020-12-31 05:27:54
● 2026-03-21 00:51:26
● 2026-06-13 09:52:14

○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
○ 2026-06-13 09:52:14

●NSns2.p201.dns.oraclecloud.net2026-03-21 → 2026-06-13 · 3 obs

○ 2020-12-31 05:27:54
● 2026-03-21 00:51:26
● 2026-06-13 09:52:14

○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
○ 2026-06-13 09:52:14

●NSns3.p201.dns.oraclecloud.net2026-03-21 → 2026-06-13 · 3 obs

○ 2020-12-31 05:27:54
● 2026-03-21 00:51:26
● 2026-06-13 09:52:14

○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
○ 2026-06-13 09:52:14

●NSns4.p201.dns.oraclecloud.net2026-03-21 → 2026-06-13 · 3 obs

○ 2020-12-31 05:27:54
● 2026-03-21 00:51:26
● 2026-06-13 09:52:14

○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
○ 2026-06-13 09:52:14

○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
○ 2026-06-13 09:52:14

○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
○ 2026-06-13 09:52:14

○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
○ 2026-06-13 09:52:14

○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
○ 2026-06-13 09:52:14

○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
○ 2026-06-13 09:52:14

●MXjava.cz2015-06-01 → 2026-06-13 · 2 obs

● 2015-06-01 05:26:00
● 2026-06-13 09:52:14

●MXmail.amaio.com2015-06-01 → 2026-06-13 · 2 obs

● 2015-06-01 05:26:00
● 2026-06-13 09:52:14

○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
○ 2026-06-13 09:52:14

●A87.236.197.562020-12-31 → 2026-06-13 · 3 obs

○ 2017-08-15 03:39:24
● 2020-12-31 05:27:54
● 2026-06-13 09:52:14

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cz	a.ns.nic.cz, b.ns.nic.cz, c.ns.nic.cz, d.ns.nic.cz	-
java.cz	a13-65.akam.net, ns2.p201.dns.oraclecloud.net, ns1.p201.dns.oraclecloud.net, ns3.p201.dns.oraclecloud.net...	-

✅ Authoritative Response

Server:95.101.36.67

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for java.cz (unsigned zone)

⏱️ Timing

Total: 1307ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`87.236.197.56`
NS	8	`ns4.p201.dns.oraclecloud.net, ns2.p201.dns.oraclecloud.net...`
MX	2	`mail.amaio.com (pri: 20), java.cz (pri: 10)`
TXT	1	`v=spf1 -all`
SOA	1	`ns1.p201.dns.oraclecloud.net hostmaster.`

Analysis

Hierarchy

www.java.cz is delegated beneath java.cz.

Mail Server Role

The MX record for java.cz points back to java.cz — it is its own mail server.

mail.amaio.com and java.cz are commonly paired as mail servers.

IP Addresses

java.cz directs to one IP number, which is 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

java.cz has 8 name servers — a1-160.akam.net, a11-66.akam.net, a13-65.akam.net and 5 others.

There is at least partial name server overlap between java.cz and other domains — myvynassist.com, jll-marketplace.com, greatleasedeals.com and two more among them.

These name servers regularly appear alongside ns1.p201.dns.oraclecloud.net, ns2.p201.dns.oraclecloud.net, ns3.p201.dns.oraclecloud.net and 7 other name servers in NS record sets.

Hosts with two IP numbers each:

a1-160.akam.net resolves to 193.108.91.160 and 2600:1401:2::a0.

a11-66.akam.net resolves to 84.53.139.66 and 2600:1480:1::42.

a13-65.akam.net resolves to 2.22.230.65 and 2600:1480:800::41.

a18-67.akam.net resolves to 95.101.36.67 and 2600:1480:4800::43.

ns1.p201.dns.oraclecloud.net resolves to 108.59.166.201 and 2600:2000:2100::c9.

ns2.p201.dns.oraclecloud.net resolves to 108.59.168.201 and 2600:2000:2110::c9.

ns3.p201.dns.oraclecloud.net resolves to 108.59.170.201 and 2600:2000:2120::c9.

ns4.p201.dns.oraclecloud.net resolves to 108.59.172.201 and 2600:2000:2130::c9.