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Plone vs Silverstripe CMS: catalog facts
Plone	Silverstripe CMS
Free Free and open source, backed by the Plone Foundation.	Free Free and open source under the BSD-3-Clause licence.
Self-hosted	Self-hosted
Long security track record Headless mode with a REST API	CMS and MVC application framework in one package Permissive BSD licence
Python and React stack is heavier than a simple PHP CMS Better suited to organisations than small personal sites	Needs developer work to build custom sites Requires your own server to run
Self-hosted	Self-hosted
Open source	Open source
License: ZPL-2.0	License: BSD-3-Clause
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked October 2, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.