Install only what you need
Every plugin adds code and may add database queries or external requests. Avoid overlapping plugins that do the same job.
Check publisher and updates
Review changelogs, support responses, compatibility information, and active development. Prefer official directories or verified developers.
Test before production
Back up your site, test on staging, and check key pages, forms, checkout, and admin screens after updates.
Treat security as a process
Keep WordPress, themes, and plugins updated. Remove unused extensions and use least-privilege accounts.
Further reading
This guide is educational. Check current documentation before making technical or purchasing decisions.