EU Sovereignty Score
Self-hosted / open sourceCMSHeadquarters: EU

PHPBoost: sovereignty score and 8 European alternatives

PHPBoost is a content management system that lets anyone build their own website without specific webmaster knowledge. The project describes itself as French and free, and has existed since 2005. Besides the core there are modules and templates to customise a site, and there is a forum, a wiki and API documentation for users and developers. You install it yourself on your own web server.

PHPBoost is free software under the GPL, version 3 or later, and its source code is on GitHub; work was still going on in October 2026. The project website names no legal entity or country of establishment for its maintainers, only its French origin. Because you run it yourself, pages, users and database content stay on your own infrastructure, with no dependence on a vendor cloud.

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Sovereignty score
94 / 1000 = high exposure
100 = sovereign
  • Jurisdiction SOV-2100
    Headquartered in the EU: European law applies
  • Data residency SOV-3100
    EU-only hosting
  • Cryptographic key sovereignty SOV-390
    Self-hostable: encryption keys under your own control
  • Freedom from lock-in SOV-680
    Open source: low switching costs
  • Source & runtime sovereignty SOV-4 · SOV-6100
    Source code auditable, forkable and self-hostable

SOV codes: the matching objective in the European Commission's Cloud Sovereignty Framework. Official source

How the score is calculated

Facts and evidence

Last checked October 14, 2026
Headquarters
EU (EU)Verified by hand
EU adequacy decision
No — no adequacy decisionVerified by hand
Sovereignty model
Open-source, distributedVerified by hand
Data hosting
EUVerified by hand
Open-source
YesVerified by hand
GDPR-compliant
YesVendor-stated
Category
CMS
Type
Product
Website
phpboost.com ↗

How we verify · Something wrong? Suggest a correction

Top EU-based & GDPR-compliant alternatives to PHPBoost

The European alternatives to PHPBoost come from our knowledge base of over 8,400 vendors. We only list vendors headquartered in the EU or the EEA; fully European-owned vendors rank before vendors with a foreign owner. For each alternative you see the country, the open-source status and a short description.

Score per alternative: 0 = high exposure, 100 = sovereign

47 European CMS vendors are in the catalogue. View the whole category · Submit an alternative · View category on the map

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Why digital sovereignty matters with PHPBoost

PHPBoost is headquartered in EU and therefore falls under European law: the GDPR, NIS2 and the Data Act. No foreign legislation can compel access to your data.

Data is hosted exclusively in the EU, so PHPBoost scores best on data residency.

PHPBoost is open source. You can audit the source code, self-host the software and keep the encryption keys under your own control. Switching is easier because data and software are not tied to a single party.

What this means for your organisation depends on your whole stack and context. The free assessment weighs PHPBoost together with your other vendors and gives a total score, a heatmap and the main risk drivers.

Frequently asked questions

What is the best European alternative to PHPBoost?

It depends on your use case. Strong EU alternatives to PHPBoost include Ametys, Bolt CMS and caisy. On this page you can compare 8 EU alternatives by jurisdiction, data residency and open-source status.

Are there open-source alternatives to PHPBoost?

Yes. Open-source EU alternatives to PHPBoost include Ametys, Bolt CMS, Cockpit CMS, Contao and django CMS. These keep your data fully under your own control and let you self-host if you want to.

Is PHPBoost GDPR-compliant and where is the data hosted?

PHPBoost is headquartered in EU (EU) and hosts data in EU. It is also open-source, so you can self-host it. That makes PHPBoost an EU-sovereign choice in its own right; the EU alternatives on this page are comparable European tools.

Details and sources

Verified by handHeadquarters, owner, hosting locations and licence have been checked by us against public sources. Free of charge and for every vendor, not a paid label. Nothing in this knowledge base is taken over automatically. Last checked on October 14, 2026.

Sources

Public sources used in the latest check of this record.

Compliance evidence

The links below point to the vendor's own public documents. We only record what we found: a missing link means "not found publicly", not "not compliant".

No public compliance evidence has been recorded for this vendor yet. Do you know its DPA or subprocessor list? Something wrong? Suggest a correction

Cyber Resilience Act

Public signals that relate to the EU Cyber Resilience Act. They do not count towards the score. A missing line means "not found publicly".

We found none of these signals on the vendor's own site when we checked.

For products in scope of the CRA, CE marking is required from 11 December 2027; this cannot be checked yet.

Checked on October 14, 2026. What is the Cyber Resilience Act?

In the changelog

Earlier changes to this page, as listed in the public changelog.

Digital sovereignty in CMS

CMS: Content management systems — websites, headless CMS, digital experience platforms. In this category the choice of vendor determines who has legal access to your data, where that data lives and how easily you can switch later.

Also in this category

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8 European alternatives to PHPBoost — GDPR-compliant & EU-hosted · EU Sovereignty Score