em.docker.com - dns.ninja

`em.docker.com`

CNAME	`mkto-sj130243.com`
DNSSEC	⚠️ Not signed
A	104.17.70.206^{Cloudflare104.17.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
A	104.17.71.206^{Cloudflare104.17.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
A	104.17.72.206^{Cloudflare104.17.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
A	104.17.73.206^{Cloudflare104.17.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
A	104.17.74.206^{Cloudflare104.17.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
NS	`ns1.marketo.com` ⭐
		A	208.77.136.240^{🇺🇸 Adobe208.77.136.0/22 VA5}
NS	`ns2.mktdns.com`
		A	192.28.164.191^{🇺🇸 Adobe192.28.164.0/23}
NS	`ns3.marketo.co.uk` ⚠️ Not in parent delegation
		A	130.248.246.54^{🇺🇸 Adobe130.248.244.0/22 GBR2}
SOA	`ns1.marketo.com`ops@localhost 2026-05-21 #1

`docker.com`

	DNSSEC	⚠️ Not signed
	A	2620:12a:8000::4^{🇺🇸 Fastly2620:12a:8000::/44 Pantheon}
	A	2620:12a:8001::4^{🇺🇸 Fastly2620:12a:8000::/44 Pantheon}
	A	23.185.0.4^{🇺🇸 Fastly23.185.0.0/24 Pantheon}
	NS	`ns-207.awsdns-25.com` ⭐
	NS	`ns-1289.awsdns-33.org`
	NS	`ns-1981.awsdns-55.co.uk`
	NS	`ns-568.awsdns-07.net`
	MX	`aspmx.l.google.com` ⭐
	MX	`alt1.aspmx.l.google.com`⁽⁵⁾
	MX	`alt2.aspmx.l.google.com`⁽⁵⁾
	MX	`alt3.aspmx.l.google.com`⁽¹⁰⁾
	MX	`alt4.aspmx.l.google.com`⁽¹⁰⁾
	TXT	`MS=ms42223923`
	TXT	`MS=ms98031138`
	TXT	`adobe-idp-site-verification=a8d1a71d0cba44c2521bcb451d9dc708ee20d93c7b5b04791...`
	TXT	`airtable-verification=7f122efe7db6b16848108e469042c39c`
	TXT	`anthropic-domain-verification-p1ks1q=BmUzJzzDzqNXVWLXmZVoEvTr3`
	TXT	`apple-domain-verification=S580UenDqcwy2I1X`
	TXT	`astro-domain-verification=cljrj1fgz00hm01lvtaq65gnn`
	TXT	`atlassian-domain-verification=I1f5bgOm9sPUEcK/2JTD6weNlWt+Wwsyo5dwvJe1fGjf9V+...`
	TXT	`cursor-domain-verification-pkwbtp=KD6kIrkeudCadzeviiVJgEWnd`
	TXT	`d0vcwvtyam`
	TXT	`detectify-verification=87a64c3bf3301354588d90672bd1b74e`
	TXT	`docker-verification=4b72827b-32c1-4fe6-a843-2256c0df8a31`
	TXT	`docusign=aeb25cd4-f743-4efc-b6fb-b8bc5dd1d0e8`
	TXT	`google-site-verification=4PyKLfy_lowkc_qcu-byUkmF1kxAUT7tfho7ZiP353s`
	TXT	`google-site-verification=5e33xBJIwW1XU49IqmIYtN7yi2Iq0GNnWwN4ujn4G_M`
	TXT	`google-site-verification=CFmV0geNs1hCxK0mBEpjWaDoNwBIiDxIRjTvt3YGRDM`
	TXT	`google-site-verification=GjEZ_3KyjpDbmRzGdMUtqMeuXdh7HCSc8uRsPGYL-I0`
	TXT	`google-site-verification=Nyiwo5q4kkaD5V-sEiXsW74HXyVRtKVyxYFfZuFLG7M`
	TXT	`google-site-verification=VbuWA5NflxQMko2x9BJFIPVYrbuxHQll4UP4gZ4Fm08`
	TXT	`google-site-verification=i6hYWAXRYCtHNnyiQAYXiy_4StkAMJQiNCfH-3olY-I`
	TXT	`google-site-verification=rCKOZlVmB_xuu9DiT-urSmmXAEUGn5RI8PxdyCW5LJg`
	TXT	`jamf-site-verification=jqNgc5MzMp4UnSANweyyEQ`
	TXT	`miro-verification=116f0987438eb5a48c070e080a68e7d7b3087e5f`
	TXT	`onetrust-domain-verification=fb12882ae6344670a7b91077bd57c0f1`
	TXT	`openai-domain-verification=dv-tj9VEsgExQvdNl9SCOa2Awju`
	TXT	`opine-verification=14d8ea53-d8ae-406f-93b0-76dc879d9b46`
	TXT	`sinch-domain-verification=d8a66194-44cf-49c3-96ab-74325ad6e7be`
	TXT	`sonatype-domain-verification=OSSRH-62474`
	TXT	`stripe-verification=804359af3a919b4a46343227e384abdf33e10ad5bb81ea9f1d17ed4e7...`
	TXT	`v=spf1 include:_spf.google.com include:spf.tipalti.com include:_spf.salesforc...`
	TXT	`zapier-domain-verification-challenge=c3e7ddaf-20bf-40ca-9374-1a917b16be06`
	SOA	`ns-207.awsdns-25.com`awsdns-hostmaster@amazon.com serial=1

WOT: SAFE (94/100)
rank #269 globally
rank #171 in the tld

docker.com

docker.comis the official corporate and product website of Docker, Inc., the company behind the Docker containerization platform. It serves as the primary hub for product information, documentation links, and user sign-in for Docker's suite of developer tools.

Key facts

Owner / operator: Docker, Inc.
TLD:.com— gTLD
Primary purpose: Corporate website and gateway to Docker's developer platform (Docker Desktop, Docker Hub, Docker Engine)
Status: active

History

Year	Event
2013	Cloud-hosting startup dotCloud rebranded to Docker, Inc.; Docker Engine released as open-source software
2019	Docker Enterprise product line sold to Mirantis; Docker, Inc. refocused on developer tooling
2022	Docker Desktop transitioned to a paid subscription model for larger organisations

Notable subdomains or services

hub.docker.com— Docker Hub, the public container image registry; hosts millions of public images and private repositories
docs.docker.com— official product documentation
desktop.docker.com— update and telemetry endpoint for Docker Desktop clients

Related domains

docker.io— the registry pull domain used by the Docker daemon (e.g.,docker pull ubunturesolves againstregistry-1.docker.io); operated by Docker, Inc.
dockerhub.com— redirects tohub.docker.com

Semrush Rank:#3,332 Keywords:414,959 Traffic:757,461/mo
WOT: SAFE (94/100)
📈 Tranco rank: #510

Docker

Docker is a leading platform for building, sharing, and running containerized applications. Founded in 2013, Docker revolutionized software development by popularizing container technology, enabling developers to package applications with all their dependencies into standardized units called containers.

Products & Services

Docker Desktop - Development environment for building and testing containers locally
Docker Hub - Public registry hosting millions of container images
Docker Build Cloud - Cloud-based container image building service
Docker Scout - Software supply chain security and vulnerability analysis

Infrastructure

Service	Provider
CDN/Hosting	Fastly (23.185.0.4)
DNS	AWS Route 53 (ns-207.awsdns-25.com + 3 others)
Email	Google Workspace (aspmx.l.google.com)
IPv6	2620:12a:8000::4, 2620:12a:8001::4

Notable Facts

Ranks #266 globally and #171 in .com (Tranco: #525)
Acquired by Mirantis (Docker Enterprise) in 2019; Docker Inc. retained Docker Desktop and Hub
Over 20 million developers use Docker monthly
DNSSEC is not enabled for this domain

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DNS History

1 record (1 active, 0 former)

●CNAMEmkto-sj130243.com2026-04-03 → 2026-06-13 · 2 obs

● 2026-04-03 01:58:40
● 2026-06-13 18:20:28

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
docker.com	ns-207.awsdns-25.com, ns-568.awsdns-07.net, ns-1289.awsdns-33.org, ns-1981.awsdns-55.co.uk	2 records
docker.com	ns-1289.awsdns-33.org, ns-1981.awsdns-55.co.uk, ns-207.awsdns-25.com, ns-568.awsdns-07.net	-
docker.com	ns-1289.awsdns-33.org, ns-1981.awsdns-55.co.uk, ns-207.awsdns-25.com, ns-568.awsdns-07.net	-
docker.com	ns-1289.awsdns-33.org, ns-1981.awsdns-55.co.uk, ns-207.awsdns-25.com, ns-568.awsdns-07.net	-
docker.com	ns-1289.awsdns-33.org, ns-1981.awsdns-55.co.uk, ns-207.awsdns-25.com, ns-568.awsdns-07.net	-
docker.com	ns-1289.awsdns-33.org, ns-1981.awsdns-55.co.uk, ns-207.awsdns-25.com, ns-568.awsdns-07.net	-
docker.com	ns-1289.awsdns-33.org, ns-1981.awsdns-55.co.uk, ns-207.awsdns-25.com, ns-568.awsdns-07.net	-
docker.com	ns-1289.awsdns-33.org, ns-1981.awsdns-55.co.uk, ns-207.awsdns-25.com, ns-568.awsdns-07.net	-
docker.com	ns-1289.awsdns-33.org, ns-1981.awsdns-55.co.uk, ns-207.awsdns-25.com, ns-568.awsdns-07.net	-
docker.com	ns-1289.awsdns-33.org, ns-1981.awsdns-55.co.uk, ns-207.awsdns-25.com, ns-568.awsdns-07.net	-
docker.com	ns-1289.awsdns-33.org, ns-1981.awsdns-55.co.uk, ns-207.awsdns-25.com, ns-568.awsdns-07.net	-
docker.com	ns-1289.awsdns-33.org, ns-1981.awsdns-55.co.uk, ns-207.awsdns-25.com, ns-568.awsdns-07.net	-
docker.com	ns-1289.awsdns-33.org, ns-1981.awsdns-55.co.uk, ns-207.awsdns-25.com, ns-568.awsdns-07.net	-
docker.com	ns-1289.awsdns-33.org, ns-1981.awsdns-55.co.uk, ns-207.awsdns-25.com, ns-568.awsdns-07.net	-
docker.com	ns-1289.awsdns-33.org, ns-1981.awsdns-55.co.uk, ns-207.awsdns-25.com, ns-568.awsdns-07.net	-
docker.com	ns-1289.awsdns-33.org, ns-1981.awsdns-55.co.uk, ns-207.awsdns-25.com, ns-568.awsdns-07.net	-
docker.com	ns-1289.awsdns-33.org, ns-1981.awsdns-55.co.uk, ns-207.awsdns-25.com, ns-568.awsdns-07.net	-
docker.com	ns-1289.awsdns-33.org, ns-1981.awsdns-55.co.uk, ns-207.awsdns-25.com, ns-568.awsdns-07.net	-
docker.com	ns-1289.awsdns-33.org, ns-1981.awsdns-55.co.uk, ns-207.awsdns-25.com, ns-568.awsdns-07.net	-
docker.com	ns-1289.awsdns-33.org, ns-1981.awsdns-55.co.uk, ns-207.awsdns-25.com, ns-568.awsdns-07.net	-

✅ Authoritative Response

Server:205.251.194.56

NS records: ns-1289.awsdns-33.org, ns-1981.awsdns-55.co.uk, ns-207.awsdns-25.com, ns-568.awsdns-07.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for docker.com (unsigned zone)

⏱️ Timing

Total: 602ms | Queries: -

📄 Records

Type	Count	Sample Data
CNAME	1	`mkto-sj130243.com`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns-207.awsdns-25.com, ns-207.awsdns-25.com)

Analysis

IP Addresses

em.docker.com resolves to five IP addresses: 104.17.70.206, 104.17.71.206, 104.17.72.206 and two others

Additional host names — mkto-sj250009.com, mkto-sn010215.com, mkto-sjf0159.com and two others — share IP numbers with em.docker.com.

Name Servers

The authoritative name servers for em.docker.com are ns1.marketo.com, ns2.mktdns.com and ns3.marketo.co.uk — three in total.

em.docker.com has at least partial name server overlap with other domains, such as mkto-sj070011.com, mkto-sjf0044.com, mkto-sj130165.com and two others.

The hostnames ns1.marketo.com, ns2.mktdns.com and ns3.marketo.co.uk each resolve to a single IP: ns1.marketo.com → 208.77.136.240, ns2.mktdns.com → 192.28.164.191, ns3.marketo.co.uk → 130.248.246.54.