docker.blue - dns.ninja

`docker.blue`

DNSSEC	⚠️ Not signed
A	185.21.48.202^{🇳🇱 FUSIX-AS185.21.48.0/24}
NS	`nsa.perf1.fr` ⭐
		A	2a01:c8:100::100^{🇫🇷 NAMESHIELD2a01:c8:100::/40 ANYCAST1-1}
			PTR	`nsa.perf1.fr`
		A	81.92.94.100^{🇫🇷 NAMESHIELD81.92.94.0/23 ANYCAST1-1}
			PTR	`nsa.perf1.fr`
NS	`nsb.perf1.com`
		A	2a01:c8:101::100^{🇫🇷 NAMESHIELD2a01:c8:100::/40 ANYCAST1-1}
			PTR	`nsb.perf1.com`
		A	81.92.95.100^{🇫🇷 NAMESHIELD81.92.94.0/23 ANYCAST1-1}
			PTR	`nsb.perf1.com`
NS	`nsc.perf1.com`
		A	2a09:35c0:102::100^{🇫🇷 NAMESHIELDGRP2a09:35c0:100::/40 NAMESHIELD ANYCAST1-2}
			PTR	`nsc.perf1.com`
		A	152.89.172.100^{🇫🇷 NAMESHIELDGRP152.89.172.0/23 NAMESHIELD ANYCAST1-2}
			PTR	`nsc.perf1.com`
SOA	`nsa.perf1.fr`technical@nameshield.net 2023-08-15 #2

`blue`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a0.nic.blue` ⭐
	NS	`a2.nic.blue`
	NS	`b0.nic.blue`
	NS	`b2.nic.blue`
	NS	`c0.nic.blue`
	SOA	`a0.nic.blue`hostmaster@donuts.email serial=1784312251

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DNS History

9 records (4 active, 5 former)

○NSns2.observatoiredesmarques.fr2016-12-10 → 2018-06-06 · 4 obs

● 2016-12-10 05:21:36
● 2018-06-06 22:13:48
○ 2026-02-24 14:29:20
○ 2026-07-17 18:29:48

○NSns3.nameshield.net2016-12-10 → 2018-06-06 · 4 obs

● 2016-12-10 05:21:36
● 2018-06-06 22:13:48
○ 2026-02-24 14:29:20
○ 2026-07-17 18:29:48

●NSnsa.perf1.fr2026-02-24 → 2026-07-17 · 3 obs

○ 2018-06-06 22:13:48
● 2026-02-24 14:29:20
● 2026-07-17 18:29:48

●NSnsb.perf1.com2026-02-24 → 2026-07-17 · 3 obs

○ 2018-06-06 22:13:48
● 2026-02-24 14:29:20
● 2026-07-17 18:29:48

●NSnsc.perf1.com2026-02-24 → 2026-07-17 · 3 obs

○ 2018-06-06 22:13:48
● 2026-02-24 14:29:20
● 2026-07-17 18:29:48

○NSobs.ns1.fr2016-12-10 → 2018-06-06 · 4 obs

● 2016-12-10 05:21:36
● 2018-06-06 22:13:48
○ 2026-02-24 14:29:20
○ 2026-07-17 18:29:48

○MXmx3.nameshield.com2016-12-10 → 2018-06-06 · 4 obs

● 2016-12-10 05:21:36
● 2018-06-06 22:13:48
○ 2026-02-24 14:29:20
○ 2026-07-17 18:29:48

○MXmx4.nameshield.net2016-12-10 → 2018-06-06 · 4 obs

● 2016-12-10 05:21:36
● 2018-06-06 22:13:48
○ 2026-02-24 14:29:20
○ 2026-07-17 18:29:48

●A185.21.48.2022026-02-24 → 2026-07-17 · 2 obs

● 2026-02-24 14:29:20
● 2026-07-17 18:29:48

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
blue	a0.nic.blue, a2.nic.blue, b0.nic.blue, b2.nic.blue...	10 records
docker.blue	nsc.perf1.com, nsa.perf1.fr, nsb.perf1.com	-

✅ Authoritative Response

Server:81.92.95.100

NS records: nsc.perf1.com, nsa.perf1.fr, nsb.perf1.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for docker.blue (unsigned zone)

⏱️ Timing

Total: 1010ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`185.21.48.202`
NS	3	`nsc.perf1.com, nsb.perf1.com...`
SOA	1	`nsa.perf1.fr technical.nameshield.net`

📌 Glue Records Collected

Total: 10

In-bailiwick: 10 (a0.nic.blue, a0.nic.blue, a2.nic.blue...)

Analysis

IP Addresses

docker.blue resolves to just one IP address, 185.21.48.202.

Name Servers

Three name servers are authoritative for docker.blue: nsb.perf1.com, nsc.perf1.com and nsa.perf1.fr.

At least some of docker.blue's name servers are shared with other domains, for example rowenta.at, mustela.com.cy, canalbox-reunion.com and two more.

These name servers tend to co-occur with ns0.infravesi.com, ns1.infravesi.com, a.ns.developpement-durable.gouv.fr and 3 other name servers in the same DNS delegations.

nsb.perf1.com resolves to 81.92.95.100 and 2a01:c8:101::100. nsc.perf1.com resolves to 152.89.172.100 and 2a09:35c0:102::100. nsa.perf1.fr resolves to 81.92.94.100 and 2a01:c8:100::100. All three hostnames point to two IP numbers each.