`ersteadvisory.cz`

DNSSEC	🔒 Signed (DS record present)
A	37.9.175.164^{🇸🇰 WEBSUPPORT-SRO-SK-AS37.9.175.0/24}
		PTR	`ing.r3.websupport.sk`
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	`insmtp.dragon-cloud.org` ⭐
		A	95.129.97.46^{🇨🇿 FASTER-AS95.129.96.0/21 FASTER CZ spol. s r.o.}
SOA	`ns1.websupport.cz`admin@websupport.cz serial=1773961935

`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=1776143852

Same first word

ersteadvisory.cz

DNS History

10 records (5 active, 5 former)

○NSalfa.ns.active24.cz2015-07-25 → 2018-09-10 · 4 obs

● 2015-07-25 16:01:14
● 2018-09-10 13:41:24
○ 2026-04-10 23:41:00
○ 2026-04-14 05:56:54

○NSbeta.ns.active24.cz2015-07-25 → 2018-09-10 · 4 obs

● 2015-07-25 16:01:14
● 2018-09-10 13:41:24
○ 2026-04-10 23:41:00
○ 2026-04-14 05:56:54

○NSgama.ns.active24.sk2015-07-25 → 2018-09-10 · 4 obs

● 2015-07-25 16:01:14
● 2018-09-10 13:41:24
○ 2026-04-10 23:41:00
○ 2026-04-14 05:56:54

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

○ 2018-09-10 13:41:24
● 2026-04-10 23:41:00
● 2026-04-14 05:56:54

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

○ 2018-09-10 13:41:24
● 2026-04-10 23:41:00
● 2026-04-14 05:56:54

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

○ 2018-09-10 13:41:24
● 2026-04-10 23:41:00
● 2026-04-14 05:56:54

●MXinsmtp.dragon-cloud.org2018-09-10 → 2026-04-14 · 2 obs

● 2018-09-10 13:41:24
● 2026-04-14 05:56:54

●A37.9.175.1642026-04-10 → 2026-04-14 · 3 obs

○ 2018-09-10 13:41:24
● 2026-04-10 23:41:00
● 2026-04-14 05:56:54

○A81.31.36.1782015-07-25 → 2017-02-10 · 4 obs

● 2015-07-25 16:01:14
● 2017-02-10 10:59:02
○ 2018-09-10 13:41:24
○ 2026-04-14 05:56:54

○A95.129.97.472018-09-10 → 2018-09-10 · 4 obs

○ 2017-02-10 10:59:02
● 2018-09-10 13:41:24
○ 2026-04-10 23:41:00
○ 2026-04-14 05:56:54

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cz	a.ns.nic.cz, b.ns.nic.cz, c.ns.nic.cz, d.ns.nic.cz	-
ersteadvisory.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: 1351ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`37.9.175.164`
NS	3	`ns1.websupport.cz, ns2.websupport.cz...`
MX	1	`insmtp.dragon-cloud.org (pri: 10)`
SOA	1	`ns1.websupport.cz admin.websupport.cz`

Analysis

IP Addresses

ersteadvisory.cz resolves to one IP number: 37.9.175.164.

other host names including test.mb.cz, nsk.cz, tirna.cz, vdltechniek.nl and mail.reichel.cz share IP numbers with ersteadvisory.cz.

Name Servers

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

ersteadvisory.cz at least partially shares name servers with other domains, for instance jsemvpravu.cz, jass.cz, bladeclub.cz, lefenda.cz and stavimesvami.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

ersteadvisory.cz is handled by a single mail server, insmtp.dragon-cloud.org.

ersteadvisory.cz shares the same mail server setup as other domains, for instance reboks.cz, hbloch.cz, western-global.eu, grantika.cz and blochservis.cz.

insmtp.dragon-cloud.org resolves to IP 95.129.97.46.

ersteadvisory.cz - robtex.com