`rhj.cz`

DNSSEC	⚠️ Not signed
A	185.178.175.55^{🇨🇿 TLAP-ZCOM185.178.172.0/22}
		PTR	`voatt-www7.zcom.cz`
NS	`ns-498.awsdns-62.com` ⭐
		A	2600:9000:5301:f200::1^{🇺🇸 Amazon2600:9000:5301::/48 - CloudFront}
			PTR	`ns-498.awsdns-62.com`
		A	205.251.193.242^{🇺🇸 Amazon205.251.193.0/24 prefix}
			PTR	`ns-498.awsdns-62.com`
NS	`ns-1344.awsdns-40.org`
		A	2600:9000:5305:4000::1^{🇺🇸 Amazon2600:9000:5305::/48 - CloudFront}
			PTR	`ns-1344.awsdns-40.org`
		A	205.251.197.64^{🇺🇸 Amazon205.251.197.0/24 prefix}
			PTR	`ns-1344.awsdns-40.org`
NS	`ns-1955.awsdns-52.co.uk`
		A	2600:9000:5307:a300::1^{🇺🇸 Amazon2600:9000:5307::/48 - CloudFront}
			PTR	`ns-1955.awsdns-52.co.uk`
		A	205.251.199.163^{🇺🇸 Amazon205.251.199.0/24 prefix}
			PTR	`ns-1955.awsdns-52.co.uk`
NS	`ns-666.awsdns-19.net`
		A	2600:9000:5302:9a00::1^{🇺🇸 Amazon2600:9000:5302::/48 - CloudFront}
			PTR	`ns-666.awsdns-19.net`
		A	205.251.194.154^{🇺🇸 Amazon205.251.194.0/24 prefix}
			PTR	`ns-666.awsdns-19.net`
MX	`mx1.active24.com` ⭐
		A	2a02:4a8:ac24:101::97:4^{🇨🇿 ACTIVE24-AS2a02:4a8::/32 CZ-ACTIVE24-NET6}
			PTR	`in.smtp.cz`
		A	2a02:4a8:ac24:101::97:102^{🇨🇿 ACTIVE24-AS2a02:4a8::/32 CZ-ACTIVE24-NET6}
			PTR	`in.smtp.cz`
		A	2a02:4a8:ac24:101::97:111^{🇨🇿 ACTIVE24-AS2a02:4a8::/32 CZ-ACTIVE24-NET6}
			PTR	`in.smtp.cz`
		A	2a02:4a8:ac24:101::97:116^{🇨🇿 ACTIVE24-AS2a02:4a8::/32 CZ-ACTIVE24-NET6}
			PTR	`in.smtp.cz`
		A	81.95.97.4^{🇨🇿 ACTIVE24-AS81.95.96.0/20 CZ-ACTIVE24-NET1}
			PTR	`in.smtp.cz`
		A	81.95.97.102^{🇨🇿 ACTIVE24-AS81.95.96.0/20 CZ-ACTIVE24-NET1}
			PTR	`in.smtp.cz`
		A	81.95.97.111^{🇨🇿 ACTIVE24-AS81.95.96.0/20 CZ-ACTIVE24-NET1}
			PTR	`in.smtp.cz`
		A	81.95.97.116^{🇨🇿 ACTIVE24-AS81.95.96.0/20 CZ-ACTIVE24-NET1}
			PTR	`in.smtp.cz`
MX	`mx2.active24.com`⁽²⁰⁾
		A	2a00:4b40:1000:590:185:111:90:93^{🇸🇰 WEBSUPPORT-SRO-SK-AS2a00:4b40::/32}
			PTR	`mx2.active24.com`
		A	185.111.90.93^{🇭🇺 WEBSUPPORT-SRO-SK-AS185.111.88.0/22}
			PTR	`mx2.active24.com`
TXT	`v=spf1 include:spf.active24.com ~all`
SOA	`ns-498.awsdns-62.com`awsdns-hostmaster@amazon.com serial=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=1782125237

Same first word

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rhj.com

rhj.info

rhj.cz

rhj.jp

rhj.no

rhj.dk

rhj.com.au

rhj.at

rhj.cn

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Similar names

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rjh.be

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jhr.dk

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jrh.co.nz

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jhr.nic.in

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jrh.ca

jrh.no

rjh.us

hrj.com.mx

jhr.com.br

hrj.gov.pl

rjh.info

hjr.nl

rjh.biz

rjh.cc

rjh.mobi

rjh.im

jrh.ro

hjr.pl

hjr.com.au

hrj.ch

rjh.cn

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jhr.cn

jrh.fi

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hjr.cn

jhr.co.kr

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hrj.net.cn

jhr.or.jp

jhr.ca

rjh.com

jhr.eu

jrh.biz

hjr.pm

hrj.co.uk

jhr.fr

hrj.se

rjh.email

DNS History

28 records (7 active, 21 former)

○NSalfa.ns.active24.cz2016-12-18 → 2020-11-01 · 5 obs

○ 2016-08-25 00:03:36
● 2016-12-18 11:53:24
● 2020-11-01 19:39:46
○ 2026-06-13 08:41:26
○ 2026-06-22 11:17:02

○NSbeta.ns.active24.cz2016-12-18 → 2020-11-01 · 5 obs

○ 2016-08-25 00:03:36
● 2016-12-18 11:53:24
● 2020-11-01 19:39:46
○ 2026-06-13 08:41:26
○ 2026-06-22 11:17:02

○NSgama.ns.active24.sk2016-12-18 → 2020-11-01 · 5 obs

○ 2016-08-25 00:03:36
● 2016-12-18 11:53:24
● 2020-11-01 19:39:46
○ 2026-06-13 08:41:26
○ 2026-06-22 11:17:02

●NSns-1344.awsdns-40.org2026-06-13 → 2026-06-22 · 3 obs

○ 2020-11-01 19:39:46
● 2026-06-13 08:41:26
● 2026-06-22 11:17:02

●NSns-1955.awsdns-52.co.uk2026-06-13 → 2026-06-22 · 3 obs

○ 2020-11-01 19:39:46
● 2026-06-13 08:41:26
● 2026-06-22 11:17:02

●NSns-498.awsdns-62.com2026-06-13 → 2026-06-22 · 3 obs

○ 2020-11-01 19:39:46
● 2026-06-13 08:41:26
● 2026-06-22 11:17:02

●NSns-666.awsdns-19.net2026-06-13 → 2026-06-22 · 3 obs

○ 2020-11-01 19:39:46
● 2026-06-13 08:41:26
● 2026-06-22 11:17:02

○NSns.onebit.cz2015-10-21 → 2016-08-25 · 5 obs

○ 2015-08-19 09:32:52
● 2015-10-21 00:14:24
● 2016-08-25 00:03:36
○ 2016-12-18 11:53:24
○ 2026-06-22 11:17:02

○NSns.onebit.eu2015-10-21 → 2016-08-25 · 5 obs

○ 2015-08-19 09:32:52
● 2015-10-21 00:14:24
● 2016-08-25 00:03:36
○ 2016-12-18 11:53:24
○ 2026-06-22 11:17:02

○NSns.onebit.org2015-10-21 → 2016-08-25 · 5 obs

○ 2015-08-19 09:32:52
● 2015-10-21 00:14:24
● 2016-08-25 00:03:36
○ 2016-12-18 11:53:24
○ 2026-06-22 11:17:02

○NSns.wedos.com2015-08-19 → 2015-08-19 · 3 obs

● 2015-08-19 09:32:52
○ 2015-10-21 00:14:24
○ 2026-06-22 11:17:02

○NSns.wedos.cz2015-08-19 → 2015-08-19 · 3 obs

● 2015-08-19 09:32:52
○ 2015-10-21 00:14:24
○ 2026-06-22 11:17:02

○NSns.wedos.eu2015-08-19 → 2015-08-19 · 3 obs

● 2015-08-19 09:32:52
○ 2015-10-21 00:14:24
○ 2026-06-22 11:17:02

○NSns.wedos.net2015-08-19 → 2015-08-19 · 3 obs

● 2015-08-19 09:32:52
○ 2015-10-21 00:14:24
○ 2026-06-22 11:17:02

○MXin.smtp.cz2016-12-18 → 2016-12-18 · 4 obs

○ 2016-08-25 00:03:36
● 2016-12-18 11:53:24
○ 2017-10-17 16:20:10
○ 2026-06-22 11:17:02

○MXmx.smtp.cz2016-12-18 → 2016-12-18 · 4 obs

○ 2016-08-25 00:03:36
● 2016-12-18 11:53:24
○ 2017-10-17 16:20:10
○ 2026-06-22 11:17:02

●MXmx1.active24.com2017-10-17 → 2026-06-22 · 3 obs

○ 2016-12-18 11:53:24
● 2017-10-17 16:20:10
● 2026-06-22 11:17:02

○MXmx10.onebit.cz2015-10-21 → 2016-08-25 · 5 obs

○ 2015-08-19 09:32:52
● 2015-10-21 00:14:24
● 2016-08-25 00:03:36
○ 2016-12-18 11:53:24
○ 2026-06-22 11:17:02

○MXmx10.onebit.eu2015-10-21 → 2016-08-25 · 5 obs

○ 2015-08-19 09:32:52
● 2015-10-21 00:14:24
● 2016-08-25 00:03:36
○ 2016-12-18 11:53:24
○ 2026-06-22 11:17:02

○MXmx10.onebit.org2015-10-21 → 2016-08-25 · 5 obs

○ 2015-08-19 09:32:52
● 2015-10-21 00:14:24
● 2016-08-25 00:03:36
○ 2016-12-18 11:53:24
○ 2026-06-22 11:17:02

●MXmx2.active24.com2017-10-17 → 2026-06-22 · 3 obs

○ 2016-12-18 11:53:24
● 2017-10-17 16:20:10
● 2026-06-22 11:17:02

○MXwe1-mx.wedos.net2015-08-19 → 2015-08-19 · 3 obs

● 2015-08-19 09:32:52
○ 2015-10-21 00:14:24
○ 2026-06-22 11:17:02

○A178.238.37.1892015-10-21 → 2016-08-25 · 5 obs

○ 2015-08-19 09:32:52
● 2015-10-21 00:14:24
● 2016-08-25 00:03:36
○ 2016-12-18 11:53:24
○ 2026-06-22 11:17:02

●A185.178.175.552026-06-13 → 2026-06-22 · 3 obs

○ 2020-11-01 19:39:46
● 2026-06-13 08:41:26
● 2026-06-22 11:17:02

○A2a01:430:13::1892015-10-21 → 2016-08-25 · 5 obs

○ 2015-08-19 09:32:52
● 2015-10-21 00:14:24
● 2016-08-25 00:03:36
○ 2016-12-18 11:53:24
○ 2026-06-22 11:17:02

○A31.15.12.682016-12-18 → 2017-10-17 · 5 obs

○ 2016-08-25 00:03:36
● 2016-12-18 11:53:24
● 2017-10-17 16:20:10
○ 2020-11-01 19:39:46
○ 2026-06-22 11:17:02

○A46.234.114.42020-11-01 → 2020-11-01 · 4 obs

○ 2017-10-17 16:20:10
● 2020-11-01 19:39:46
○ 2026-06-13 08:41:26
○ 2026-06-22 11:17:02

○A46.28.105.692015-08-19 → 2015-08-19 · 3 obs

● 2015-08-19 09:32:52
○ 2015-10-21 00:14:24
○ 2026-06-22 11:17:02

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cz	a.ns.nic.cz, b.ns.nic.cz, c.ns.nic.cz, d.ns.nic.cz	-
rhj.cz	ns-498.awsdns-62.com, ns-666.awsdns-19.net, ns-1344.awsdns-40.org, ns-1955.awsdns-52.co.uk	-

✅ Authoritative Response

Server:205.251.199.163

NS records: ns-498.awsdns-62.com, ns-666.awsdns-19.net, ns-1344.awsdns-40.org, ns-1955.awsdns-52.co.uk

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for rhj.cz (unsigned zone)

⏱️ Timing

Total: 1144ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`185.178.175.55`
NS	4	`ns-1344.awsdns-40.org, ns-1955.awsdns-52.co.uk...`
MX	2	`mx1.active24.com (pri: 10), mx2.active24.com (pri: 20)`
TXT	1	`v=spf1 include:spf.active24.com ~all`
SOA	1	`ns-498.awsdns-62.com awsdns-hostmaster.a`

Analysis

IP Addresses

rhj.cz resolves to one IP address: 185.178.175.55.

aigos.cz, secelectronic.cz, dum-sluzeb.cz and two other host names share IP numbers with rhj.cz.

Name Servers

The authoritative name servers for rhj.cz are ns-498.awsdns-62.com, ns-666.awsdns-19.net, ns-1344.awsdns-40.org and ns-1955.awsdns-52.co.uk.

At least some of rhj.cz's name servers are shared with other domains, for example d3.t7a.org, d21kbpa772o1g.cloudfront.net, divanail.jp and two more.

It is common for these name servers to be used in conjunction with the name servers ns-984.awsdns-59.net, ns-1366.awsdns-42.org and ns-1785.awsdns-31.co.uk.

Four hostnames, each resolving to a pair of IP addresses: ns-498.awsdns-62.com directs to 205.251.193.242 and 2600:9000:5301:f200::1; ns-666.awsdns-19.net directs to 205.251.194.154 and 2600:9000:5302:9a00::1; ns-1344.awsdns-40.org directs to 205.251.197.64 and 2600:9000:5305:4000::1; ns-1955.awsdns-52.co.uk directs to 205.251.199.163 and 2600:9000:5307:a300::1.

Mail Servers

Mail for rhj.cz is handled by two mail servers — mx1.active24.com and mx2.active24.com.

rhj.cz uses an identical mail server configuration to several other domains — among them fonetip.cz, lipensko.org, optimail.cz and two more.

rhj.cz has at least partial mail server overlap with other domains such as cms-tv.cz, ideaprojekt.cz, myphoenix.cz and two more.

Hostnames that resolve to 8 IP addresses:

Hostname mx1.active24.com directs to 81.95.97.4, 81.95.97.102 and 81.95.97.111 along with 5 other IP addresses.

Hostnames that resolve to two IP addresses:

mx2.active24.com directs traffic to 185.111.90.93 and 2a00:4b40:1000:590:185:111:90:93.

rhj.cz - robtex.com

rhj.cz

cz

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

IP Addresses

Name Servers

Mail Servers

`rhj.cz`

`cz`