`herta.cz`

DNSSEC	🔒 Signed (DS record present)
A	2a00:4b40:aaaa:2011::6^{🇸🇰 WEBSUPPORT-SRO-SK-AS2a00:4b40::/32}
A	37.9.175.213^{🇸🇰 WEBSUPPORT-SRO-SK-AS37.9.175.0/24}
NS	`ns1.websupport.cz` ⭐
		A	2a10:bbc0::11^{🇨🇿 ACTIVE24-AS2a10:bbc0::/32}
			PTR	`ns1.websupport.eu`
		A	45.10.97.11^{🇨🇿 ACTIVE24-AS45.10.97.0/24}
			PTR	`ns1.websupport.eu`
NS	`ns2.websupport.cz`
		A	2a02:250:3::12^{🇸🇪 ACTIVE24-AS2a02:250:3::/48}
			PTR	`ns2.websupport.eu`
		A	185.71.159.12^{🇸🇪 ACTIVE24-AS185.71.159.0/24}
			PTR	`ns2.websupport.eu`
NS	`ns3.websupport.eu`
		A	2a10:bbc0::13^{🇨🇿 ACTIVE24-AS2a10:bbc0::/32}
			PTR	`ns3.websupport.eu`
		A	45.10.97.13^{🇨🇿 ACTIVE24-AS45.10.97.0/24}
			PTR	`ns3.websupport.eu`
MX	`mx10.active24.cz` ⭐
		A	2a00:4b40:aaaa:2101:45:13:137:85^{🇸🇰 WEBSUPPORT-SRO-SK-AS2a00:4b40::/32}
		A	45.13.137.85^{🇸🇰 WEBSUPPORT-SRO-SK-AS45.13.137.0/24}
			PTR	`mx10.active24.cz`
MX	`mx20.active24.cz`⁽¹⁰⁰⁾
		A	2a00:4b40:aaaa:2101:45:13:137:86^{🇸🇰 WEBSUPPORT-SRO-SK-AS2a00:4b40::/32}
		A	45.13.137.86^{🇸🇰 WEBSUPPORT-SRO-SK-AS45.13.137.0/24}
			PTR	`mx20.active24.cz`
TXT	`v=spf1 a mx include:_spf.websupport.cz -all`
SOA	`ns1.websupport.cz`admin@websupport.cz serial=1775978633

`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=1776124035

Same first word

herta.co.uk

herta.cz

herta.de

herta.se

herta.ir

herta.cc

herta.fr

herta.be

herta.it

herta.com

herta.net

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thera.org

earth.chat

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hetra.com

tehar.com

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rehat.id

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earht.com

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heart.eu

earth.dh.bytemark.co.uk

ather.in

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earth.fr

earth.design

rathe.be

earth.doctor

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harte.com

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DNS History

18 records (7 active, 11 former)

○NSns.onebit.cz2015-07-13 → 2015-07-13 · 3 obs

● 2015-07-13 13:29:16
○ 2015-11-22 10:59:20
○ 2026-04-14 00:07:58

○NSns.onebit.eu2015-07-13 → 2015-07-13 · 3 obs

● 2015-07-13 13:29:16
○ 2015-11-22 10:59:20
○ 2026-04-14 00:07:58

○NSns.onebit.org2015-07-13 → 2015-07-13 · 3 obs

● 2015-07-13 13:29:16
○ 2015-11-22 10:59:20
○ 2026-04-14 00:07:58

○NSns.web4u.cz2015-11-22 → 2021-07-02 · 5 obs

○ 2015-07-13 13:29:16
● 2015-11-22 10:59:20
● 2021-07-02 02:57:40
○ 2026-04-10 07:38:00
○ 2026-04-14 00:07:58

●NSns1.websupport.cz2026-04-10 → 2026-04-14 · 3 obs

○ 2021-07-02 02:57:40
● 2026-04-10 07:38:00
● 2026-04-14 00:07:58

○NSns2.web4u.cz2015-11-22 → 2021-07-02 · 5 obs

○ 2015-07-13 13:29:16
● 2015-11-22 10:59:20
● 2021-07-02 02:57:40
○ 2026-04-10 07:38:00
○ 2026-04-14 00:07:58

●NSns2.websupport.cz2026-04-10 → 2026-04-14 · 3 obs

○ 2021-07-02 02:57:40
● 2026-04-10 07:38:00
● 2026-04-14 00:07:58

●NSns3.websupport.eu2026-04-10 → 2026-04-14 · 3 obs

○ 2021-07-02 02:57:40
● 2026-04-10 07:38:00
● 2026-04-14 00:07:58

○MXmail.herta.cz2015-11-22 → 2018-07-18 · 4 obs

● 2015-11-22 10:59:20
● 2018-07-18 14:54:10
○ 2021-07-02 02:57:40
○ 2026-04-14 00:07:58

○MXmx.web4u.cz2021-07-02 → 2021-07-02 · 4 obs

○ 2018-07-18 14:54:10
● 2021-07-02 02:57:40
○ 2026-04-10 07:38:00
○ 2026-04-14 00:07:58

●MXmx10.active24.cz2026-04-10 → 2026-04-14 · 3 obs

○ 2021-07-02 02:57:40
● 2026-04-10 07:38:00
● 2026-04-14 00:07:58

●MXmx20.active24.cz2026-04-10 → 2026-04-14 · 3 obs

○ 2021-07-02 02:57:40
● 2026-04-10 07:38:00
● 2026-04-14 00:07:58

○A2001:1568::132015-11-22 → 2021-07-02 · 5 obs

○ 2015-07-13 13:29:16
● 2015-11-22 10:59:20
● 2021-07-02 02:57:40
○ 2026-04-10 07:38:00
○ 2026-04-14 00:07:58

●A2a00:4b40:aaaa:2011::62026-04-10 → 2026-04-14 · 3 obs

○ 2021-07-02 02:57:40
● 2026-04-10 07:38:00
● 2026-04-14 00:07:58

○A2a01:430:13::1062015-07-13 → 2015-07-13 · 3 obs

● 2015-07-13 13:29:16
○ 2015-11-22 10:59:20
○ 2026-04-14 00:07:58

●A37.9.175.2132026-04-10 → 2026-04-14 · 3 obs

○ 2021-07-02 02:57:40
● 2026-04-10 07:38:00
● 2026-04-14 00:07:58

○A81.31.45.1062015-07-13 → 2015-07-13 · 3 obs

● 2015-07-13 13:29:16
○ 2015-11-22 10:59:20
○ 2026-04-14 00:07:58

○A81.91.86.132015-11-22 → 2021-07-02 · 5 obs

○ 2015-07-13 13:29:16
● 2015-11-22 10:59:20
● 2021-07-02 02:57:40
○ 2026-04-10 07:38:00
○ 2026-04-14 00:07:58

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cz	b.ns.nic.cz, c.ns.nic.cz, d.ns.nic.cz, a.ns.nic.cz	8 records
herta.cz	ns1.websupport.cz, ns2.websupport.cz, ns3.websupport.eu	-

✅ Authoritative Response

Server:45.10.97.11

NS records: ns1.websupport.cz, ns2.websupport.cz, ns3.websupport.eu

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 716ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`37.9.175.213`
AAAA	1	`2a00:4b40:aaaa:2011::6`
NS	3	`ns1.websupport.cz, ns2.websupport.cz...`
MX	2	`mx10.active24.cz (pri: 10), mx20.active24.cz (pri: 100)`
TXT	1	`v=spf1 a mx include:_spf.websupport.cz -`
SOA	1	`ns1.websupport.cz admin.websupport.cz`

📌 Glue Records Collected

Total: 8

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

Analysis

IP Addresses

herta.cz points to two IP numbers: 2a00:4b40:aaaa:2011::6 and 37.9.175.213.

Other host names, for instance sge.cz, www.karpata.cz, pujcovna-privesu.cz, kambrno.cz and gdata.cz share IP numbers with herta.cz.

Name Servers

herta.cz is delegated to three name servers: ns1.websupport.cz, ns2.websupport.cz and ns3.websupport.eu.

herta.cz at least partially shares its name servers with other domains, for instance kostal-jan.cz, hejlova.com, sapton.com, iglseder.at and chilly.cz.

Host names with two IP numbers:

ns1.websupport.cz points to: 2a10:bbc0::11 and 45.10.97.11.

ns2.websupport.cz points to: 2a02:250:3::12 and 185.71.159.12.

ns3.websupport.eu points to: 2a10:bbc0::13 and 45.10.97.13.

Mail Servers

Two mail servers mx10.active24.cz and mx20.active24.cz handle herta.cz.

herta.cz uses the same mail server setup as other domains such as myketo.cz, woodoo.cz, screenshotmacapp.com, vinee.cz and inovacentrum.eu.

herta.cz shares at least some mail servers with other domains, for instance mail.sportparadise.eu and familium.sk.

Host names with two IP numbers: mx10.active24.cz points to 2a00:4b40:aaaa:2101:45:13:137:85 and 45.13.137.85; mx20.active24.cz points to 2a00:4b40:aaaa:2101:45:13:137:86 and 45.13.137.86

herta.cz - robtex.com

herta.cz

cz

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

IP Addresses

Name Servers

Mail Servers

`herta.cz`

`cz`