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Disclaimer: Star Stack provides information about European technology services for educational purposes only. Service listings, sovereignty assessments, and recommendations do not constitute legal, financial, or professional advice. We encourage you to verify all information independently and consult appropriate professionals before making technology decisions. Star Stack is not affiliated with any listed services unless explicitly stated.

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MediaWiki | Star Stack

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MediaWiki

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MediaWiki

Name: MediaWiki
Author: Star Stack

Free open-source wiki engine for collaboration and documentation

Visit Website GitHub 5.2K

About

MediaWiki is a free and open-source wiki engine used to build collaborative websites and documentation platforms. It powers Wikipedia and thousands of other wikis, offering a customizable, multilingual system managed by a vibrant community.

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Sovereignty Score

Recorded assessment version: jurisdiction-ownership-2026-10-04

out of 100

Data completeness50% (Partial)

Jurisdictional(56%)

Significant foreign legal exposure risk

Jurisdiction: United States (EU adequacy decision)
No foreign parent provider
Five Eyes intelligence alliance exposure
US CLOUD Act applies (US can compel data access regardless of storage location)

Ownership(44%)

100

Strong EU ownership and control

Foundation-owned (non-profit)
Bootstrapped stage
No acquisition risk (foundation/government cannot be acquired)

More dimensions coming soon

GovernanceComing soon

PortabilityComing soon

LicenseComing soon

CommunityComing soon

How missing data affects scores Submit data corrections

Provider

Wikimedia Foundation

Quick Facts

Legal jurisdiction: United States
Headquarters: United States
Ownership: Foundation
Deployment: SaaS

Evidence and freshness

Verification date unknown.

A score is an assessment of recorded facts. Missing evidence and unresolved ownership can affect the result.

hqCountry: wikipedia
Retrieved 30/01/2026, confidence 98%.
Read evidence excerpt
Wikimedia Foundation headquartered in San Francisco, California at 1 Montgomery Street
hqCountry: wikipedia
Retrieved 30/01/2026, confidence 98%.
Read evidence excerpt
Wikimedia Foundation headquartered in San Francisco, California at 1 Montgomery Street
Ownership: other
Statement 12/02/2026, confidence 80%.