Standards compliant
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Accessibility Compliant
Meets or exceeds U.S. Government Section 508 and W3C's WAI-AA standards for sight and motor impaired individuals. All Javascript usage comes with fallback modes that work in any web browser.
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Outstanding Search Engine Visibility
100% valid XHTML and CSS keeps search engines and web browsers happy. Plone sites are consistently ranked well in Google search results.
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Plays Well with Others
LDAP, SQL, SOAP, Web Services (WSDL) and WebDAV — Plone works with them all.
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Pluggable Authentication
Easy integration with LDAP, Active Directory and SQL databases. You name it, Plone talks to it.