codingdojo.cz - dns.ninja

`codingdojo.cz`

DNSSEC	🔒 Signed (DS record present)
A	46.137.15.86^{🇮🇪 Amazon46.137.0.0/17 EU AWS Dublin}
		PTR	`ec2-46-137-15-86.eu-west-1.compute.amazonaws.com`
A	54.73.53.134^{🇮🇪 Amazon54.73.0.0/16 EC2 DUB prefix}
A	54.220.192.176^{🇮🇪 Amazon54.220.0.0/16 EC2 DUB Prefix}
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`
SOA	`ns1.websupport.cz`admin@websupport.cz serial=1750273271

`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=1782634637

Same first word

codingdojo.xyz

codingdojo.net

codingdojo.de

codingdojo.cz

codingdojo.org

codingdojo.it

codingdojo.com

codingdojo.pro

DNS History

17 records (6 active, 11 former)

○NSalina.ns.cloudflare.com2017-03-16 → 2020-03-09 · 4 obs

● 2017-03-16 18:02:18
● 2020-03-09 13:00:22
○ 2026-03-29 02:31:12
○ 2026-06-28 08:45:30

○NShank.ns.cloudflare.com2017-03-16 → 2020-03-09 · 4 obs

● 2017-03-16 18:02:18
● 2020-03-09 13:00:22
○ 2026-03-29 02:31:12
○ 2026-06-28 08:45:30

●NSns1.websupport.cz2026-03-29 → 2026-06-28 · 3 obs

○ 2020-03-09 13:00:22
● 2026-03-29 02:31:12
● 2026-06-28 08:45:30

●NSns2.websupport.cz2026-03-29 → 2026-06-28 · 3 obs

○ 2020-03-09 13:00:22
● 2026-03-29 02:31:12
● 2026-06-28 08:45:30

●NSns3.websupport.eu2026-03-29 → 2026-06-28 · 3 obs

○ 2020-03-09 13:00:22
● 2026-03-29 02:31:12
● 2026-06-28 08:45:30

○A34.243.165.1802020-03-09 → 2020-03-09 · 4 obs

○ 2017-03-16 18:02:18
● 2020-03-09 13:00:22
○ 2026-03-29 02:31:12
○ 2026-06-28 08:45:30

○A34.246.138.1642020-03-09 → 2020-03-09 · 4 obs

○ 2017-03-16 18:02:18
● 2020-03-09 13:00:22
○ 2026-03-29 02:31:12
○ 2026-06-28 08:45:30

○A34.249.148.2082020-03-09 → 2020-03-09 · 4 obs

○ 2017-03-16 18:02:18
● 2020-03-09 13:00:22
○ 2026-03-29 02:31:12
○ 2026-06-28 08:45:30

●A46.137.15.862026-03-29 → 2026-06-28 · 3 obs

○ 2020-03-09 13:00:22
● 2026-03-29 02:31:12
● 2026-06-28 08:45:30

○A52.16.211.1752020-03-09 → 2020-03-09 · 4 obs

○ 2017-03-16 18:02:18
● 2020-03-09 13:00:22
○ 2026-03-29 02:31:12
○ 2026-06-28 08:45:30

○A52.208.237.2422020-03-09 → 2020-03-09 · 4 obs

○ 2017-03-16 18:02:18
● 2020-03-09 13:00:22
○ 2026-03-29 02:31:12
○ 2026-06-28 08:45:30

○A52.209.151.972020-03-09 → 2020-03-09 · 4 obs

○ 2017-03-16 18:02:18
● 2020-03-09 13:00:22
○ 2026-03-29 02:31:12
○ 2026-06-28 08:45:30

○A52.50.10.512020-03-09 → 2020-03-09 · 4 obs

○ 2017-03-16 18:02:18
● 2020-03-09 13:00:22
○ 2026-03-29 02:31:12
○ 2026-06-28 08:45:30

○A54.195.245.1212017-03-16 → 2017-03-16 · 3 obs

● 2017-03-16 18:02:18
○ 2020-03-09 13:00:22
○ 2026-06-28 08:45:30

●A54.220.192.1762026-03-29 → 2026-06-28 · 3 obs

○ 2020-03-09 13:00:22
● 2026-03-29 02:31:12
● 2026-06-28 08:45:30

●A54.73.53.1342026-03-29 → 2026-06-28 · 3 obs

○ 2020-03-09 13:00:22
● 2026-03-29 02:31:12
● 2026-06-28 08:45:30

○A99.81.216.512020-03-09 → 2020-03-09 · 4 obs

○ 2017-03-16 18:02:18
● 2020-03-09 13:00:22
○ 2026-03-29 02:31:12
○ 2026-06-28 08:45:30

🔍 DNS Trace

📋 Delegation Chain

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

✅ Authoritative Response

Server:45.10.97.13

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: 881ms | Queries: -

📄 Records

Type	Count	Sample Data
A	3	`46.137.15.86, 54.73.53.134...`
NS	3	`ns1.websupport.cz, ns2.websupport.cz...`
SOA	1	`ns1.websupport.cz admin.websupport.cz`

Analysis

IP Addresses

codingdojo.cz maps to three IP numbers — 46.137.15.86, 54.73.53.134 and 54.220.192.176.

Additional host names — discoverbest.com, news-poc-be.herokuapp.com, derbyrollcall.herokuapp.com and two others — share IP numbers with codingdojo.cz.

Name Servers

Three name servers are authoritative for codingdojo.cz: ns1.websupport.cz, ns2.websupport.cz and ns3.websupport.eu.

codingdojo.cz has at least partial name server overlap with other domains, such as eximhelps.cz, dalkov.cz, filmark.com and two others.

It is common to find these name servers paired with the name servers ns1.websupport.sk.

ns1.websupport.cz resolves to 45.10.97.11 and 2a10:bbc0::11. ns2.websupport.cz resolves to 185.71.159.12 and 2a02:250:3::12. ns3.websupport.eu resolves to 45.10.97.13 and 2a10:bbc0::13. All three hostnames point to two IP numbers each.