EU Sovereignty Score
Non-EU vendorCloud PaaSHeadquarters: US

Opalstack: sovereignty score and 8 European alternatives

Opalstack is a managed Linux hosting service for websites, automation and AI agents. Customers can run WordPress, WooCommerce, Django, Ruby on Rails, Node.js and Ghost, along with applications such as Nextcloud, Gitea, Matrix (Synapse) and Mastodon. Plans include SSH and SFTP access, MariaDB and PostgreSQL, email hosting, DNS and daily backups, and there is a REST API and a Python SDK. The provider maintains and updates the operating system; customers on managed hosting do not get root access.

Opalstack is a service of Opalstack LLC, a company registered in the US state of Wyoming that describes itself as independent and not investor-backed. For VPS plans and dedicated servers, the provider lists locations including London, Amsterdam and Frankfurt, alongside US and Singapore locations. A US-based provider is subject to US law, including when hosting in the EU. The provider does not guarantee the availability of its backups and recommends keeping your own offsite copies.

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Sovereignty score
27 / 1000 = high exposure
100 = sovereign
  • Jurisdiction SOV-210
    Headquartered in the US: CLOUD Act and FISA 702
  • Data residency SOV-350
    Hosting inside and outside Europe (US, EU, OTHER)
  • Cryptographic key sovereignty SOV-320
    Key management with a non-European vendor
  • Freedom from lock-in SOV-640
    Closed source: switching requires data migration
  • Source & runtime sovereignty SOV-4 · SOV-615
    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 9, 2026
HeadquartersUS (US)Verified by hand
EU adequacy decisionOnly for companies individually certified under the EU-US Data Privacy FrameworkVerified by hand
Sovereignty modelVendor-hosted (non-EU)Verified by hand
Data hostingUS, EU, OTHERVerified by hand
Open-sourceNoVerified by hand
GDPR-compliantYesVendor-stated
Hosting signalAKAMAI-LINODE-AP - Akamai Connected Cloud, SG (US)Technically measured
CategoryCloud PaaS
TypeProduct
Websiteopalstack.com ↗

The hosting signal shows the network that serves the vendor's website, often a CDN, and not necessarily where the service or your data is hosted. How we verify · Something wrong? Suggest a correction

Top EU-based & GDPR-compliant alternatives to Opalstack

The European alternatives to Opalstack come from our knowledge base of over 6,200 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

31 European Cloud PaaS 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 Opalstack

Opalstack is headquartered in the United States. US vendors fall under the CLOUD Act and FISA 702: US authorities can compel access to data, even when that data sits in a European data centre. That is the core of the jurisdictional exposure in our model.

Opalstack hosts data in US, EU, OTHER. Exactly what stays within the EU — and what does not — is defined by the vendor's data processing agreement and sub-processor list, not by a setting you control yourself; check those documents for the precise scope, including backups, logs and support access.

Opalstack 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 Opalstack 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 Opalstack?

It depends on your use case. Strong EU alternatives to Opalstack include CapRover, Cloudron and Coolify. On this page you can compare 8 EU alternatives by jurisdiction, data residency and open-source status.

Are there open-source alternatives to Opalstack?

Yes. Open-source EU alternatives to Opalstack include Coolify and Nhost. These keep your data fully under your own control and let you self-host if you want to.

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

Opalstack is headquartered in US and hosts data in US, EU, OTHER. The vendor states it is GDPR-compliant, but the data falls under non-EU jurisdiction. For full EU data residency the EU alternatives on this page usually offer more certainty.

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 9, 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

Digital sovereignty in Cloud PaaS

Cloud PaaS: Platform as a Service — managed runtimes, container orchestration, serverless. 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 Opalstack — GDPR-compliant & EU-hosted · EU Sovereignty Score