Plugin
A plugin is a package of code that adds a feature to WordPress without you having to modify WordPress itself.
In plain English
WordPress ships deliberately lean. A plugin extends it: a contact form, a shop, an SEO toolkit, a backup system, a caching layer.
There are tens of thousands of them, most of them free, and installing one takes about ten seconds. That accessibility is WordPress’s superpower and its biggest trap.
Why it matters
Plugins are how you get from ‘a website’ to ‘the website this business needs’ without hiring a developer.
But every plugin is someone else’s code running on your site, a potential slowdown, a potential conflict, and a security surface. Choosing well matters far more than choosing many.
How it works
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Judge before installingRecent updates, active installs, and how the developer answers awkward support threads.
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Install one at a timeSo when something breaks, you already know what broke it.
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Keep them updatedOutdated plugins are the leading cause of hacked WordPress sites.
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Delete what you don’t useDeactivated is not gone. Remove it properly.
‘One plugin per feature’ becomes forty plugins
Audit the list every few months and remove anything you couldn’t defend out loud.