What Is Plesk? Installation and Website Management

Originally published: 2025-10-29

Technical update: 22 October 2026. Plesk provides a panel for managing websites and related services. Linux and Windows options differ in supported operating-system versions, features and extensions. An old screenshot or package name does not establish current compatibility.

Before installation

Review the Plesk system requirements for the target release. Check OS, licensing, memory, disk, network, DNS and application requirements. Do not treat a machine holding production data as a clean installation target.

A controlled installation sequence

1. Prepare a compatible, supported operating system and suitable server.
2. Use the current vendor installation source and confirm licence scope.
3. Select required services and PHP components.
4. Configure panel access, certificates, domains, web services and mail where needed.
5. Test an application and backup restoration using a test domain.

Does installation include complete management?

No. Assign responsibility for OS patches, Plesk updates, application security, DNS and backups. A backup menu does not prove that an automatic, restorable backup policy is active.

Migration and PHP checks

Inventory files, databases, PHP versions/extensions, mailboxes and scheduled jobs. Options can differ between old panels and new releases. Test login, forms, checkout and email as well as the homepage.

Choosing a service

Confirm the supplied panel when ordering web hosting. For a Plesk-based cloud server or dedicated server, clarify licensing, installation and maintenance separately. Check panel compatibility before a hosting migration.