GeezerVison is showing professional.wiki — Managed MediaWiki Hosting

MediaWiki Hosting

MediaWiki hosting tailored to your organization's security, compliance, and workflow requirements. Fully managed, hosted in the EU by default.

Trusted by teams at

Tailored to your requirements

Custom configuration and corporate branding. Deployment options including on-premise. Admin panel for self-service configuration.

Compliance ready

EU data residency by default, DPA and TOMs documentation, and infrastructure supporting GDPR and ISO 27001. Other regions on request.

Fully managed

Upgrades, security patches, and infrastructure handled by us. 99.9% uptime SLA.

Enterprise security

Single-tenant isolation, TLS encryption, SSO via Microsoft, Google, Okta, and other providers. 24/7 monitoring. LUKS disk and AMD SEV memory encryption on request.

Open source, no lock-in

Built on MediaWiki, the software behind Wikipedia. Your data stays portable, no proprietary formats or vendor lock-in.

Scales with you

Hosting wikis with millions of pages. Unlimited users and pages, no artificial caps on content or team size.

Features

Visual Editor Full-text search (OpenSearch) Form-based editing Two-factor authentication Private wikis Custom domain Version history PDF handling Diagrams (Mermaid, Drawio) Email notifications

Add-ons: Single Sign-On (SSO) Edit approval workflows AI Assistant MCP Server Backups to your own storage

View all included extensions

Editing and content creation

VisualEditor, VisualEditorPlus, WikiEditor, Slash Commands, Page Forms, CodeMirror, CodeEditor, SyntaxHighlight, CommentStreams, ReplaceText, MassEditRegex, TemplateData, TemplateWizard, ContentDroplets, InputBox, Header Tabs, TabberNeue, Native Markdown

Structured data

Semantic MediaWiki, Semantic Result Formats, Semantic Extra Special Properties, Semantic Compound Queries, Semantic Scribunto, Semantic Meta Tags, Modern Timeline, Wikibase Repository, Wikibase EDTF, Wikibase Local Media, Wikibase Export, Automated Values, Entity Schema, WikibaseCirrusSearch

Security and access control

OATHAuth (2FA/MFA), OAuth, Moderation, AbuseFilter, Lockdown, ConfirmAccount, ConfirmEdit, SpamBlacklist, TitleBlacklist, QuestyCaptcha, CookieWarning

Administration

Admin Panel, AdminLinks, ImportUsers, EditAccount, UserMerge, Renameuser, Nuke, Page Schemas

Search

CirrusSearch and Elastica on OpenSearch, the open-source Elasticsearch fork that Wikipedia's search also runs on

Visualizations and diagrams

Mermaid, Flex Diagrams (Drawio, BPMN, DOT, Gantt), Maps (Google Maps, Leaflet), DataMaps, Network, EmbedVideo, MultimediaViewer, ImageMap

Notifications

Echo, Thanks, Discord, NewUserMessage, DismissableSiteNotice, ContactPage, SendGrid

File management

PDF Handler, SimpleBatchUpload, MsUpload, UploadWizard, Collection

Scripting and templates

Scribunto (Lua), ParserFunctions, Variables, Loops, Arrays, UserFunctions, RegexFunctions, Pipe Escape, MyVariables, Gadgets, Widgets, TemplateStyles, TemplateStylesExtender, LabeledSectionTransclusion

Navigation and display

CategoryTree, Cite, CiteThisPage, Interwiki, RelatedArticles, RevisionSlider, Popups, Lingo, Display Title, SectionAnchors, CollapsibleVector, GeoData, NearbyPages, PageImages, TextExtracts, TitleKey, SecureLinkFixer, SubPageList

Themes

Vector, Chameleon, Timeless, Medik, Citizen

SEO and analytics

WikiSEO, Create User Page, Math, Poem, BootstrapComponents, MagicNoCache, Data Transfer, AutoCreatePage

Self-Service Configuration

Manage settings, users, extensions, and appearance through the Admin Panel without touching configuration files.

MediaWiki Admin Panel dashboard showing page count, edit count, user statistics, and site settings

Explore the Admin Panel

Security and Data Protection

Single-tenant isolation

No co-tenancy with other customers. Your wiki runs on dedicated infrastructure, eliminating multi-tenant risks like cross-tenant data leaks, shared-resource vulnerabilities, and noisy-neighbor performance issues.

EU data residency

Servers run in ISO 27001-certified Hetzner data centers in Germany. Offsite backups are stored with Scaleway in France. These are the only two sub-processors. No US-based services in the data path unless you opt in to Cloudflare CDN/DDoS protection. Hosting in other regions, including the US and Singapore, is available on request for organizations with local data residency requirements.

Access controls

Server access is only possible via 2FA with a YubiKey from within our private network and is automatically logged. Only 3 engineers have access, and no automated system does. YubiKey 2FA is also required for our hosting provider accounts. Least-privilege access, quarterly reviews, revocation within one business day on offboarding.

Your wiki users get two-factor authentication (2FA/MFA) and role-based permissions to control who can read, edit, or administer content. Single Sign-On (SSO) is available as an add-on via OpenID Connect, supporting Microsoft / Azure AD, Google Workspace, Okta, Auth0, GitLab, Discord, and other identity providers.

Backups and disaster recovery

Two independent backup layers:

Daily server-level snapshots via Hetzner (7-day retention).
Daily encrypted offsite backups to Scaleway (AES-256 with dedicated key per wiki, 8 daily / 6 weekly / 6 monthly retention). The backup server cannot delete its own backups.

Disaster recovery tested quarterly.

Encryption

All traffic is encrypted in transit (TLS 1.2/1.3, HSTS enforced). On request we also encrypt data at rest and in use: LUKS full-disk encryption (AES-256), and AMD SEV-SNP memory encryption that keeps your server's memory unreadable even to the host operator.

Monitoring and patching

24/7 monitoring with automated alerting. Infrastructure managed as code with peer-reviewed changes and CI checks before deployment. Security updates applied promptly.

Compliance and agreements

Standard hosting is governed by our Customer Agreement, Service Level Agreement, Acceptable Use Policy and Usage Limits. Our Data Processing Agreement (DPA) includes the Technical and Organizational Measures (TOMs). Custom hosting agreements for organizations with specific contractual requirements. Our infrastructure supports compliance with GDPR, ISO 27001, and sector-specific frameworks.

Pricing

Standard

From 249 EUR per month

depending on your wiki's size and complexity

Dedicated infrastructure, hosted in the EU by default
Upgrades and security patches
Encrypted offsite backups
24/7 monitoring and a 99.9% availability commitment
Self-service configuration through the Admin Panel
Over 100 MediaWiki extensions

Request a quote

Enterprise

Custom pricing

for large and regulated organizations

Everything in Standard, plus

Priority support
A named engineer as your contact
Your choice of infrastructure, including on-premise
Custom contracts and DPA
Procurement and tender support

Talk to us

Add-ons

Priced separately, on top of your plan.

AI Assistant

Your users ask questions and get answers grounded in your wiki content, with source citations.

Hosted MCP Server

Let AI tools search, read, and update your wiki through the Model Context Protocol. We run the server.

Single Sign-On (SSO)

Your users log in with Microsoft, Google, Okta, or another OpenID Connect identity provider.

Approval workflows

You review and approve edits before they become the published version of a page.

Backups to your own storage

A copy of your encrypted backups goes to storage you control.

Custom branding

Your wiki in your corporate design, from logo and colors to a custom skin.

Custom development

Extensions, integrations, and features built for your wiki.

Specialized Hosting

Wikibase hosting

Wikibase with SPARQL query service hosted by key Wikibase developers.

Semantic MediaWiki hosting

Structured data in your wiki, hosted by the SMW maintainers.

NeoWiki hosting

A collaborative knowledge graph with schemas and typed relations. Early access.

City wiki hosting

A Wikipedia for your city. Places, people, events, and local history.

BlueSpice hosting

On-premise and managed cloud hosting for BlueSpice MediaWiki.

Customer Testimonials

Professional Wiki's hosting has been effortless and their support above and beyond expectation. Accommodating service with a personal touch, warmly recommended. I especially appreciated the care taken in migrating our sizeable legacy wiki.
Jaap van der Velde, Associate Principal Software Architect, for TUFLOW Wiki

We host a very large wikibase instance of more than 1.000.000 pages with Professional Wiki. They not only provide reliable hosting and performant query services, but also support us in making the right modeling and technological choices.
Dr. Tom Ruette, Head of research at Flanders Arts Institute, for Knowledge Graph Kunstenpunt

We experience ProWiki as a reliable wiki hosting provider that responds quickly to all our questions and needs.
Markus Eurich, Head of Knowledge Management, for The CDQ Competence Center

Get Started

New wikis are typically ready within 2 business days.

Moving from Confluence, SharePoint, DokuWiki, or an existing MediaWiki installation? Get your content, users, files, and configuration migrated with minimal downtime, typically within 3 business days.