docker.co - dns.ninja

`docker.co`

DNSSEC	⚠️ Not signed
A	217.70.184.38^{🇫🇷 GANDI-AS217.70.184.0/24 GANDI is an ICANN accredited registrar for more information: Web: http://www.gandi.net}
		PTR	`webredir.vip.gandi.net`
NS	`ns1.gandi.net` ⭐
		A	2001:4b98:aaaa::2^{🇫🇷 GANDI-LIVEDNS2001:4b98:aaaa::/48 GANDI is an ICANN accredited registrar and Cloud services provider}
			PTR	`ns-1-a.gandi.net`
		A	173.246.100.2^{🇺🇸 GANDI-LIVEDNS173.246.100.0/24 Gandi LiveDNS A}
			PTR	`ns-1-a.gandi.net`
NS	`ns-112-a.gandi.net`
		A	2001:4b98:aaaa::71^{🇫🇷 GANDI-LIVEDNS2001:4b98:aaaa::/48 GANDI is an ICANN accredited registrar and Cloud services provider}
			PTR	`ns-112-a.gandi.net`
		A	173.246.100.113^{🇺🇸 GANDI-LIVEDNS173.246.100.0/24 Gandi LiveDNS A}
			PTR	`ns-112-a.gandi.net`
NS	`ns-236-b.gandi.net`
		A	2001:4b98:aaab::ed^{🇫🇷 GANDI-LIVEDNS2001:4b98:aaab::/48 GANDI is an ICANN accredited registrar GANDI is a virtual server provider for more information: Web: http://www.gandi.net}
			PTR	`ns-236-b.gandi.net`
		A	213.167.230.237^{🇫🇷 GANDI-LIVEDNS213.167.230.0/24 GANDI is an ICANN accredited registrar and Cloud services provider}
			PTR	`ns-236-b.gandi.net`
NS	`ns-251-c.gandi.net`
		A	2604:3400:aaac::fc^{🇺🇸 GANDI-LIVEDNS2604:3400:aaac::/48 Gandi US Inc.}
			PTR	`ns-251-c.gandi.net`
		A	217.70.187.252^{🇫🇷 GANDI-LIVEDNS217.70.187.0/24 GANDI is an ICANN accredited registrar and Cloud services provider}
			PTR	`ns-251-c.gandi.net`
MX	`aspmx.l.google.com` ⭐
		A	2607:f8b0:4004:c23::1a^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`yuiadrs-in-f26.1e100.net`
		A	172.253.63.27^{🇺🇸 Google172.253.63.0/24}
			PTR	`bi-in-f27.1e100.net`
MX	`alt1.aspmx.l.google.com`⁽⁵⁾
		A	2800:3f0:4003:c0f::1b^{🇨🇱 Google2800:3f0:4003::/48}
		A	108.177.123.26^{🇺🇸 Google108.177.123.0/24}
			PTR	`lcscld-in-f26.1e100.net`
MX	`alt2.aspmx.l.google.com`⁽⁵⁾
		A	2a00:1450:400b:c02::1a^{🇮🇪 Google2a00:1450:400b::/48}
			PTR	`dj-in-f26.1e100.net`
		A	172.253.116.27^{🇺🇸 Google172.253.116.0/24}
			PTR	`dj-in-f27.1e100.net`
MX	`aspmx2.googlemail.com`⁽¹⁰⁾
		A	2800:3f0:4003:c0f::1a^{🇨🇱 Google2800:3f0:4003::/48}
		A	108.177.123.26^{🇺🇸 Google108.177.123.0/24}
			PTR	`lcscld-in-f26.1e100.net`
MX	`aspmx3.googlemail.com`⁽¹⁰⁾
		A	2a00:1450:400b:c02::1a^{🇮🇪 Google2a00:1450:400b::/48}
			PTR	`dj-in-f26.1e100.net`
		A	172.253.116.27^{🇺🇸 Google172.253.116.0/24}
			PTR	`dj-in-f27.1e100.net`
TXT	`MS=ms74273445`
TXT	`google-site-verification=mLO8vAhMEkCZpOB2_xTmBcx-OiEbeieVCt8kT-CJN8w`
SOA	`ns1.gandi.net`hostmaster@gandi.net serial=1783555200

`co`

	DNSSEC	🔒 Signed (DS record present)
	NS	`ns0.centralnic.net` ⭐
	NS	`a.registrydns.co`
	NS	`b.registrydns.co`
	NS	`c.registrydns.co`
	NS	`d.registrydns.co`
	SOA	`ns0.centralnic.net`hostmaster@centralnic.net serial=1759704445

Same first word

docker.life

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docker.run

docker.ru

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docker.wiki

docker.pro

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docker.systems

docker.biz

docker.ac.gov.br

docker.cool

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docker.at

docker.co.kr

docker.us

docker.im

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docker.london

docker.it

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docker.app

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docker.co

docker.land

docker.zone

docker.hu

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docker.be

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docker.jp

docker.team

docker.lk

docker.company

docker.ma

docker.trade

docker.blue

docker.es

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docker.dev

docker.com.cn

docker.site

docker.com

docker.org.cn

docker.s3.amazonaws.com

docker.com.au

docker.tools

docker.pp.ua

docker.org

docker.host

docker.me

docker.net

docker.ch

docker.su

docker.co.il

docker.ltd

docker.gov.mn

docker.com.ua

docker.mn

docker.ml

docker.zip

docker.md

docker.direct

docker.ir

docker.sh

docker.io

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DNS History

15 records (10 active, 5 former)

○NSa.dns.gandi.net2015-08-05 → 2020-02-02 · 4 obs

● 2015-08-05 04:22:36
● 2020-02-02 15:17:46
○ 2026-02-26 02:33:12
○ 2026-07-13 09:05:34

○NSb.dns.gandi.net2015-08-05 → 2020-02-02 · 4 obs

● 2015-08-05 04:22:36
● 2020-02-02 15:17:46
○ 2026-02-26 02:33:12
○ 2026-07-13 09:05:34

○NSc.dns.gandi.net2015-08-05 → 2020-02-02 · 4 obs

● 2015-08-05 04:22:36
● 2020-02-02 15:17:46
○ 2026-02-26 02:33:12
○ 2026-07-13 09:05:34

●NSns-112-a.gandi.net2026-02-26 → 2026-07-13 · 3 obs

○ 2020-02-02 15:17:46
● 2026-02-26 02:33:12
● 2026-07-13 09:05:34

●NSns-236-b.gandi.net2026-02-26 → 2026-07-13 · 3 obs

○ 2020-02-02 15:17:46
● 2026-02-26 02:33:12
● 2026-07-13 09:05:34

●NSns-251-c.gandi.net2026-02-26 → 2026-07-13 · 3 obs

○ 2020-02-02 15:17:46
● 2026-02-26 02:33:12
● 2026-07-13 09:05:34

●NSns1.gandi.net2026-02-26 → 2026-07-13 · 3 obs

○ 2020-02-02 15:17:46
● 2026-02-26 02:33:12
● 2026-07-13 09:05:34

●MXalt1.aspmx.l.google.com2026-02-26 → 2026-07-13 · 3 obs

○ 2020-02-02 15:17:46
● 2026-02-26 02:33:12
● 2026-07-13 09:05:34

●MXalt2.aspmx.l.google.com2026-02-26 → 2026-07-13 · 3 obs

○ 2020-02-02 15:17:46
● 2026-02-26 02:33:12
● 2026-07-13 09:05:34

●MXaspmx.l.google.com2026-02-26 → 2026-07-13 · 3 obs

○ 2020-02-02 15:17:46
● 2026-02-26 02:33:12
● 2026-07-13 09:05:34

●MXaspmx2.googlemail.com2026-02-26 → 2026-07-13 · 3 obs

○ 2020-02-02 15:17:46
● 2026-02-26 02:33:12
● 2026-07-13 09:05:34

●MXaspmx3.googlemail.com2026-02-26 → 2026-07-13 · 3 obs

○ 2020-02-02 15:17:46
● 2026-02-26 02:33:12
● 2026-07-13 09:05:34

○MXfb.mail.gandi.net2015-08-05 → 2020-02-02 · 4 obs

● 2015-08-05 04:22:36
● 2020-02-02 15:17:46
○ 2026-02-26 02:33:12
○ 2026-07-13 09:05:34

○MXspool.mail.gandi.net2015-08-05 → 2020-02-02 · 4 obs

● 2015-08-05 04:22:36
● 2020-02-02 15:17:46
○ 2026-02-26 02:33:12
○ 2026-07-13 09:05:34

●A217.70.184.382015-08-05 → 2026-07-13 · 2 obs

● 2015-08-05 04:22:36
● 2026-07-13 09:05:34

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
co	c.registrydns.co, d.registrydns.co, a.registrydns.co, b.registrydns.co	-
docker.co	ns-112-a.gandi.net, ns-236-b.gandi.net, ns-251-c.gandi.net	-

✅ Authoritative Response

Server:217.70.187.252

NS records: ns-112-a.gandi.net, ns-236-b.gandi.net, ns-251-c.gandi.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for docker.co (unsigned zone)

⏱️ Timing

Total: 673ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`217.70.184.38`
NS	3	`ns-112-a.gandi.net, ns-236-b.gandi.net...`
MX	5	`ALT1.ASPMX.L.GOOGLE.COM (pri: 5), ASPMX2.GOOGLEMAIL.COM (pri: 10)...`
TXT	2	`MS=ms74273445, google-site-verification=mLO8vAhMEkCZpOB`
SOA	1	`ns1.gandi.net hostmaster.gandi.net`

Analysis

IP Addresses

docker.co directs to one IP number, which is 217.70.184.38.

Among the host names that share IP numbers with docker.co are uffimmobilier.com, cirfain.com, immobilier-acropole.com and two others.

Name Servers

The domain docker.co is delegated to these four name servers: ns-112-a.gandi.net, ns-236-b.gandi.net, ns-251-c.gandi.net and ns1.gandi.net.

docker.co partially shares its NS delegation with several other domains, including boeder.de, xlpos.info, delta-developpement.com and two others.

In DNS configurations, these name servers often share authority with ns-130-b.gandi.net, ns-164-b.gandi.net, ns-161-b.gandi.net and 4 other name servers.

ns-112-a.gandi.net, ns-236-b.gandi.net, ns-251-c.gandi.net and ns1.gandi.net each carry two IP addresses. ns-112-a.gandi.net has 173.246.100.113 and 2001:4b98:aaaa::71; ns-236-b.gandi.net has 213.167.230.237 and 2001:4b98:aaab::ed; ns-251-c.gandi.net has 217.70.187.252 and 2604:3400:aaac::fc; ns1.gandi.net has 173.246.100.2 and 2001:4b98:aaaa::2.

Mail Servers

docker.co is handled by five mail servers: aspmx2.googlemail.com, aspmx3.googlemail.com, aspmx.l.google.com and two others.

docker.co shares at least some of its mail servers with other domains — for example d-sign.it, worldunited.net, goodnewsde.com and two more.

It is common to find these mail servers paired with mail servers alt1.aspmx.l.google.com, alt2.aspmx.l.google.com, alt3.aspmx.l.google.com and 3 more.

Hosts with two IP numbers each:

aspmx2.googlemail.com points to 108.177.123.26 and 2800:3f0:4003:c0f::1a.

aspmx3.googlemail.com points to 172.253.116.27 and 2a00:1450:400b:c02::1a.

aspmx.l.google.com points to 172.253.63.27 and 2607:f8b0:4004:c23::1a.

alt1.aspmx.l.google.com points to 108.177.123.26 and 2800:3f0:4003:c0f::1b.

alt2.aspmx.l.google.com points to 172.253.116.27 and 2a00:1450:400b:c02::1a.

aspmx2.googlemail.com and alt1.aspmx.l.google.com are host names that each point to 108.177.123.26 IP addresses.

aspmx3.googlemail.com and alt2.aspmx.l.google.com are host names that each point to 2a00:1450:400b:c02::1a IP addresses.

aspmx3.googlemail.com and alt2.aspmx.l.google.com are host names that each point to 172.253.116.27 IP addresses.