`cluster-design.org`

DNSSEC	⚠️ Not signed
A	109.205.75.37^{🇨🇿 AS35236109.205.72.0/21 2 connect a.s.}
		PTR	`mail.netmax.cz`
NS	`ns1.cldn.eu` ⭐
		A	2a0b:640:3:68::102^{🇨🇿 AS352362a0b:640:3::/48}
			PTR	`ns1.cldn.eu`
		A	185.205.137.11^{🇨🇿 AS35236185.205.137.0/24}
			PTR	`ns1.cldn.eu`
NS	`ns2.cldn.eu`
		A	2604:a880:4:1d0:0:1:e9b3:e000^{🇺🇸 DIGITALOCEAN2604:a880:4::/48 DigitalOcean}
			PTR	`ns2.cldn.eu`
		A	209.38.138.42^{🇺🇸 DIGITALOCEAN209.38.128.0/19 DigitalOcean}
			PTR	`ns2.cldn.eu`
SOA	`ns1.cldn.eu`dns@cldn.eu serial=0

`org`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a0.org.afilias-nst.info` ⭐ ⚠️ Not in parent delegation
	NS	`a2.org.afilias-nst.info` ⚠️ Not in parent delegation
	NS	`b0.org.afilias-nst.org`
	NS	`b2.org.afilias-nst.org`
	NS	`c0.org.afilias-nst.info` ⚠️ Not in parent delegation
	NS	`d0.org.afilias-nst.org`
	SOA	`a0.org.afilias-nst.info`hostmaster@donuts.email serial=1786414897

Same first word

cluster-design.org

cluster-design.cz

DNS History

5 records (3 active, 2 former)

●NSns1.cldn.eu2026-03-03 → 2026-08-11 · 3 obs

○ 2017-02-15 14:16:12
● 2026-03-03 17:12:18
● 2026-08-11 02:51:32

○NSns1.uvt.cz2015-05-30 → 2017-02-15 · 4 obs

● 2015-05-30 04:19:58
● 2017-02-15 14:16:12
○ 2026-03-03 17:12:18
○ 2026-08-11 02:51:32

●NSns2.cldn.eu2026-03-03 → 2026-08-11 · 3 obs

○ 2017-02-15 14:16:12
● 2026-03-03 17:12:18
● 2026-08-11 02:51:32

○NSns2.uvt.cz2015-05-30 → 2017-02-15 · 4 obs

● 2015-05-30 04:19:58
● 2017-02-15 14:16:12
○ 2026-03-03 17:12:18
○ 2026-08-11 02:51:32

●A109.205.75.372015-05-30 → 2026-08-11 · 2 obs

● 2015-05-30 04:19:58
● 2026-08-11 02:51:32

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
org	b0.org.afilias-nst.org, b2.org.afilias-nst.org, d0.org.afilias-nst.org	-
cluster-design.org	ns2.cldn.eu, ns1.cldn.eu	-

✅ Authoritative Response

Server:209.38.138.42

NS records: ns2.cldn.eu, ns1.cldn.eu

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for cluster-design.org (unsigned zone)

⏱️ Timing

Total: 827ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`109.205.75.37`
NS	2	`ns2.cldn.eu, ns1.cldn.eu`
SOA	1	`ns1.cldn.eu dns.cldn.eu`

Analysis

IP Addresses

cluster-design.org resolves to just one IP address, 109.205.75.37.

Two other host names, along with gamez.cz, mail.iom.cz and kollant.eu, also share IP numbers with cluster-design.org.

Name Servers

cluster-design.org is delegated to two name servers: ns1.cldn.eu and ns2.cldn.eu.

cluster-design.org shares its NS records with other domains, for example zapalauto.com, cldn.org, gamez.cz and two others.

ns1.cldn.eu and ns2.cldn.eu each resolve to two IP addresses: ns1.cldn.eu points to 185.205.137.11 and 2a0b:640:3:68::102, while ns2.cldn.eu points to 209.38.138.42 and 2604:a880:4:1d0:0:1:e9b3:e000.

cluster-design.org - robtex.com