Plugin
A WordPress extension that adds extra functionality to your website. Examples include contact forms, online stores, image galleries, SEO tools, or security modules. Plugins are convenient because you can add features without reprogramming. However, too many or poorly maintained plugins can slow down your site or make it insecure. The rule here is: choose plugins wisely rather than using every available option.
Extensions are the reason WordPress is so widespread, but also the most common cause of slow and insecure websites. Each additional extension brings its own code, database queries, and update responsibility.
As a guideline: Fewer than 20 active extensions are inconspicuous, but it becomes noticeable from 35 onwards. However, the crucial factor isn't the number, but the overall impact. A single poorly built extension that loads its own CSS and JavaScript on every page is more costly than ten streamlined ones. Before installing any extension, check two things: When was the last update, and does it only load its files where they are actually needed?
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