plone.org
Plone CMS: Open Source Content Management — Plone: Enterprise Level CMS - Free and OpenSource - Community Driven - Secure
Last scanned Aug 2, 2026, 7:00 PM · 8 views
Overall score
Fair
Summary
Plone is an open-source content management system (CMS) with over 20 years of stability and security wrapped in a modern, powerful user-centric package with Plone 6. This website uses Cloudflare Analytics behind Cloudflare CDN. SEO is fair (55/100) and accessibility is excellent (90/100). Security scores fair (65/100) and performance excellent (90/100). Top issue: Title longer than 60 characters.
Plone is an open-source content management system (CMS) with over 20 years of stability and security wrapped in a modern, powerful user-centric package with Plone 6.
Top issues to fix
12 issues found · 3 high priority
Missing Strict-Transport-Security header
SecurityAdd HSTS so browsers always use HTTPS — this closes the protocol-downgrade attack window.
Missing Content-Security-Policy header
SecurityAdd a CSP to control which sources can run scripts — the strongest single defense against XSS.
No H1 heading found
SEOAdd exactly one H1 describing the page's main topic — it anchors the document outline for search engines and screen readers.
Missing X-Content-Type-Options header
SecurityAdd X-Content-Type-Options: nosniff to stop MIME-sniffing attacks.
Missing X-Frame-Options header
SecurityAdd X-Frame-Options (or a CSP frame-ancestors rule) to prevent clickjacking via hidden iframes.
Title longer than 60 characters
SEOShorten the title to under 60 characters so search results don't truncate it.
+6 more issues — details in the sections below.
SEO
7 issue(s) found
Performance
877 ms
Security
HTTPS & header checks
Accessibility
1 issue(s) found
Score history
-1 overall since Jul 26, 2026
- Overall
- 73
- SEO
- 55
- Security
- 65
- Performance
- 90
- Accessibility
- 90
Organization
Company details published in this site's own structured data.
Plone is an open-source content management system (CMS) with over 20 years of stability and security wrapped in a modern, powerful user-centric package with Plone 6.
Contact
Email, phone, and address published on this site's own pages.
- something@domain.com
Meta tags
- Title
- Plone CMS: Open Source Content Management — Plone: Enterprise Level CMS - Free and OpenSource - Community Driven - Secure
- Description
- Plone is an open-source content management system (CMS) with over 20 years of stability and security wrapped in a modern, powerful user-centric package with Plone 6.
- Canonical
- Language
- en
- Charset
- utf-8
- Viewport
- width=device-width, initial-scale=1
- Robots meta
- Manifest
- https://plone.org/site.webmanifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- —
- CDN provider
- Cloudflare
- IP address
- —
- ASN
- —
DNS records
| Type | Value |
|---|---|
| A | — |
| AAAA | — |
| MX | — |
| TXT | — |
| NS | — |
| CAA | — |
| CNAME | — |
| IPv6 support | No |
TLS / SSL certificate
- Version
- TLS 1.3
- Issuer
- Google Trust Services
- Subject
- plone.org
- Valid from
- Jul 4, 2026
- Valid to
- Oct 2, 2026
- Days until expiry
- 60
- SAN domains
- plone.org, *.plone.org, *.demo.plone.org, demo.plone.org, docs.plone.org, *.docs.plone.org, dev-docs.plone.org, *.dev-docs.plone.org
Security headers
- Strict-Transport-SecurityMissing
- Content-Security-PolicyMissing
- X-Frame-OptionsMissing
- X-Content-Type-OptionsMissing
- Referrer-PolicyMissing
- Permissions-PolicyMissing
Compression: gzip · 0 cookie(s) observed
Content & assets
Headings
H1 0 · H2 10 · H3 2
Links
62 internal · 21 external · 20 broken
Images
14 total · 1 missing alt
Scripts / Styles
7 scripts · 1 stylesheets
JS / CSS size
331 KB · 7.7 KB
Page size
379 KB
Robots.txt & Sitemap
- robots.txt
- Not found
- Disallow rules
- 0
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- Title longer than 60 characters
- Meta description longer than 160 characters
- Missing canonical link
- No H1 heading found
- No structured data (JSON-LD) found
- robots.txt not found
- sitemap.xml not found
Accessibility issues
- No H1 heading found
Scan details
- Requested URL
- https://plone.org
- Final URL
- https://plone.org
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 870 ms
- HTML size
- 379 KB
- Redirect chain
- https://plone.org
See something wrong on this report? Request a correction
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Frequently asked questions
- What technology does plone.org use?
- plone.org is built with React, Cloudflare Analytics.
- Is plone.org secure (HTTPS)?
- Yes. plone.org uses TLS 1.3 with a certificate issued by Google Trust Services, valid until Oct 2, 2026.
- Who hosts plone.org?
- Hosting provider information for plone.org is not available yet.
- What is plone.org's SEO score?
- plone.org scored 55/100 for SEO in the latest analysis (fair).
- What is plone.org's overall website score?
- plone.org has an overall SiteGraph score of 73/100, combining SEO, performance, security, and accessibility.
- Has plone.org's score changed over time?
- plone.org's overall score has declined by 1 point (from 74 to 73) since Jul 26, 2026.
OpenGraph & Twitter Card
OpenGraph
Twitter Card