EU sovereignCMSHeadquarters: DE

caisy: sovereignty score and 8 European alternatives

caisy is a headless CMS for managing content and delivering it to websites and apps. Editors work with a rich-text editor and reusable components, and developers retrieve content through a GraphQL API. The product also covers multilingual content, scheduling, versioning and image optimisation, with management of several projects. The service is available through a web application.

caisy is operated by cyclus.digital GmbH in Stuttgart, Germany. As a German company, the provider is subject to the EU General Data Protection Regulation and German law, and it names no non-European parent company. The privacy policy lists several infrastructure providers, including AWS and Google Cloud, without specifying the storage regions used for caisy data. European organisations should therefore ask for hosting locations and a data processing agreement. The vendor describes no open-source edition or self-hosted option.

See the 8 European alternatives ↓Assess your stack with caisy pre-selected

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Sovereignty score

71 / 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-360
Key management with a European vendor
Freedom from lock-in SOV-640
Closed source: switching requires data migration
Source & runtime sovereignty SOV-4 · SOV-655
Closed source, runtime with the vendor

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 11, 2026

Headquarters	DE (EU)Verified by hand
Sovereignty model	Vendor-hosted (EU)Verified by hand
Data hosting	EUVerified by hand
Open-source	NoVerified by hand
GDPR-compliant	NoVendor-stated
Category	CMS
Type	Product
Website	caisy.io ↗

How we verify · Something wrong? Suggest a correction

Top EU-based & GDPR-compliant alternatives to caisy

The European alternatives to caisy come from our knowledge base of over 6,800 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

39 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 caisy

caisy is headquartered in DE 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 caisy scores best on data residency.

caisy is closed source and hosted by the vendor. The encryption keys and the runtime sit with the vendor and switching requires data migration. Ask about bring-your-own-key, export options and open standards.

What this means for your organisation depends on your whole stack and context. The free assessment weighs caisy 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 caisy?

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

Are there open-source alternatives to caisy?

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

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

caisy is headquartered in DE (EU) and hosts data in EU. That makes caisy 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 11, 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 11, 2026. What is the Cyber Resilience Act?

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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