docker.com 200
🔒 SSL Valid
HTTP Status A three-digit code showing if the site loaded successfully (200), redirects (301/302), or has errors (4xx/5xx).Read more →
200
SSL Expires When the SSL certificate expires. An expired certificate causes browser security warnings.Read more →
in 69d
Domain Expires When the domain registration expires. If not renewed, the domain becomes available to others.Read more →
in 159d
Hosting The company and location where this website's server is physically located.Read more →
Fastly
Security Score based on key HTTP security headers: HSTS, Content-Security-Policy, and X-Frame-Options.Read more →
2/3
IP Address The numerical address of the server hosting this website. Reveals location, provider, and network.Read more →
23.185.0.4
Tech Stack Technologies detected on this website: CMS, frameworks, libraries, CDN, and analytics tools. 5
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📊 Analytics
Google Tag Manager
📝 CMS
WordPress 7.0.4
⚡ Cache
Varnish
🔤 Font/Icon
Google Fonts
🖥️ Web Server
Nginx
CMS Details WordPress
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🏗️ Page Builder
Gutenberg (Block Editor)
Screenshot 2026-08-20
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Captured: 2026-08-20 02:55:09 · 13.6 KB
DNS Records DNS translates domain names to IP addresses. Records control where the site, email, and services are directed.Read more →
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| A (IPv4) | 23.185.0.4 |
| AAAA (IPv6) | 2620:12a:8000::42620:12a:8001::4 |
| NS | ns-1981.awsdns-55.co.ukns-207.awsdns-25.comns-568.awsdns-07.netns-1289.awsdns-33.org |
| MX | 1 aspmx.l.google.com10 alt3.aspmx.l.google.com10 alt4.aspmx.l.google.com5 alt1.aspmx.l.google.com5 alt2.aspmx.l.google.com |
| TXT | airtable-verification=7f122efe7db6b16848108e469042c39c opine-verification=14d8ea53-d8ae-406f-93b0-76dc879d9b46 stripe-verification=804359af3a919b4a46343227e384abdf33e10ad5bb81ea9f1d17ed4e74486ab4 v=spf1 include:_spf.google.com include:spf.tipalti.com include:_spf.salesforce.com include:mktomail.com include:mail.zendesk.com -all google-site-verification=5e33xBJIwW1XU49IqmIYtN7yi2Iq0GNnWwN4ujn4G_M onetrust-domain-verification=fb12882ae6344670a7b91077bd57c0f1 openai-domain-verification=dv-tj9VEsgExQvdNl9SCOa2Awju sonatype-domain-verification=OSSRH-62474 docusign=aeb25cd4-f743-4efc-b6fb-b8bc5dd1d0e8 MS=ms42223923 google-site-verification=rCKOZlVmB_xuu9DiT-urSmmXAEUGn5RI8PxdyCW5LJg zapier-domain-verification-challenge=c3e7ddaf-20bf-40ca-9374-1a917b16be06 google-site-verification=GjEZ_3KyjpDbmRzGdMUtqMeuXdh7HCSc8uRsPGYL-I0 d0vcwvtyam apple-domain-verification=S580UenDqcwy2I1X google-site-verification=4PyKLfy_lowkc_qcu-byUkmF1kxAUT7tfho7ZiP353s google-site-verification=CFmV0geNs1hCxK0mBEpjWaDoNwBIiDxIRjTvt3YGRDM MS=ms98031138 adobe-idp-site-verification=a8d1a71d0cba44c2521bcb451d9dc708ee20d93c7b5b04791f699d128bbe6ec2 detectify-verification=87a64c3bf3301354588d90672bd1b74e sinch-domain-verification=d8a66194-44cf-49c3-96ab-74325ad6e7be miro-verification=116f0987438eb5a48c070e080a68e7d7b3087e5f jamf-site-verification=jqNgc5MzMp4UnSANweyyEQ atlassian-domain-verification=I1f5bgOm9sPUEcK/2JTD6weNlWt+Wwsyo5dwvJe1fGjf9V+x3kyqxZRrl9z7ILEK google-site-verification=i6hYWAXRYCtHNnyiQAYXiy_4StkAMJQiNCfH-3olY-I anthropic-domain-verification-p1ks1q=BmUzJzzDzqNXVWLXmZVoEvTr3 docker-verification=4b72827b-32c1-4fe6-a843-2256c0df8a31 cursor-domain-verification-pkwbtp=KD6kIrkeudCadzeviiVJgEWnd astro-domain-verification=cljrj1fgz00hm01lvtaq65gnn google-site-verification=VbuWA5NflxQMko2x9BJFIPVYrbuxHQll4UP4gZ4Fm08 google-site-verification=Nyiwo5q4kkaD5V-sEiXsW74HXyVRtKVyxYFfZuFLG7M |
WHOIS / RDAP Public registration data: who registered the domain, when, and when it expires.Read more →
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| Registrar | Gandi SAS |
| Registered | 1995-01-25 |
| Expires | 2027-01-26 (in 159 days) |
| Last Updated | 2026-01-13 |
| Status | client transfer prohibited |
SSL Certificate Encrypts the connection between browsers and this website. Valid SSL = HTTPS works.Read more → Valid
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| Subject (CN) | docker.com |
| Issuer | Let's Encrypt |
| Valid From | 2026-07-30 |
| Valid Until | 2026-10-28 (69 days left) |
| SANs (2) | docker.comwww.docker.com |
HTTP Headers Metadata sent by the server: reveals software, caching rules, and security configuration.Read more →
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| Status | 200 |
| Server | nginx |
| Content-Type | text/html; charset=UTF-8 |
| Final URL | https://www.docker.com/ |
| strict-transport-security | max-age=31622400 |
| x-frame-options | SAMEORIGIN |
| x-content-type-options | nosniff |
| referrer-policy | strict-origin-when-cross-origin |
| permissions-policy | geolocation=(), microphone=(), camera=(), fullscreen=(self "https://www.youtube.com"), payment=() |
| cache-control | public, max-age=604800 |
| x-cache | HIT, HIT, MISS, MISS |
| via | 1.1 varnish, 1.1 varnish, 1.1 varnish, 1.1 varnish |
Security headers HTTP headers that protect visitors from attacks. HSTS forces HTTPS, CSP controls resource loading, X-Frame-Options prevents clickjacking.Read more →
Hosting Physical infrastructure: where the server is, who operates it, and what network it belongs to.Read more →
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| IP Address | 23.185.0.4 |
| Provider | Fastly |
| Organization | Fastly, Inc. |
| ASN | AS54113 |
| Country | US |
| City | San Francisco |
Security Score
A (6/7)
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Sitemap & Robots
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| robots.txt | Found Restricted |
| Sitemap | Found 15 sitemaps (index) pages |
| Last modified | 2026-08-17T16:18:27+00:00 |
| Disallowed paths |
/wp-admin/
/pricing/contact-sales/bss-cc-thankyou/
/pricing/contact-sales/bss-thankyou/
/company/contact-thank-you/
/thank-you-subscribing-docker-weekly/
/pricing/contact-sales2/
/cdn-cgi/
/static/
/c/
/p/
... +12 more |
Social & Meta Tags
Complete
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| Title | Docker: Accelerated Container Application Development |
| Description | Docker is a platform designed to help developers build, share, and run container applications. We handle the tedious setup, so you can focus on the code. |
| OG Title | Docker: Accelerated Container Application Development |
| OG Description | Docker is a platform designed to help developers build, share, and run container applications. We handle the tedious setup, so you can focus on the code. |
| OG Image | https://www.docker.com/app/uploads/2023/06/meta-image-homepage-1110x580.png |
| OG Type | website |
| OG Site Name | Docker |
| Twitter Card | summary_large_image |
| Canonical URL | https://www.docker.com/ |
| Language | en-US |
Mail Security Email authentication records (SPF & DMARC) that prevent spoofing and phishing from this domain.Read more →
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| SPF | ✓ Present v=spf1 include:_spf.google.com include:spf.tipalti.com include:_spf.salesforce.com include:mktomail.com include:mail.zendesk.com -all |
| DMARC | ✓ Present v=DMARC1; p=quarantine; pct=100; rua=mailto:[email protected]; ruf=mailto:[email protected]; |
| MX Records | 1 → aspmx.l.google.com 10 → alt3.aspmx.l.google.com 10 → alt4.aspmx.l.google.com 5 → alt1.aspmx.l.google.com 5 → alt2.aspmx.l.google.com |