Installing a WordPress plugin takes ten seconds. Removing a bad one can take an afternoon, plus a database clean-up and an awkward email to a client. Before you click Install, run through these ten checks. Most take less than a minute.
1. When was it last updated?
A plugin that hasn’t been updated in over a year may not be tested with the current WordPress or PHP version. Check the “Last updated” date and the changelog. Regular, small releases are a good sign.
2. Is it tested with your WordPress version?
Look for the “Tested up to” value on the plugin page. If it’s several major versions behind, test it on a staging site first.
3. Does it do one thing, or everything?
If you need one feature and the plugin ships thirty, you’ll carry the weight of all thirty. Prefer the tool that matches the job.
4. What does it load, and where?
Install it on staging, open a page that doesn’t use it, and check the Network tab in your browser’s dev tools. If you see the plugin’s scripts and styles there, it loads on every page, whether needed or not.
5. What does it add to your database?
Some plugins create custom tables or store large amounts of autoloaded options, which slows every request. A plugin like Query Monitor will show you what’s being loaded.
6. Does it clean up after itself?
Check the documentation or FAQ for what happens on uninstall. Good plugins remove their settings and tables when you delete them, or at least offer the option.
7. How does it handle support?
Read the last few support threads. Are questions answered? Are answers helpful, or do they all say “upgrade to Pro”? How a developer handles support tells you how they’ll handle your problem.
8. Is there real documentation?
A setup guide, examples and a list of hooks or settings save you hours. A single README with “install and activate” is a warning sign for anything non-trivial.
9. What data does it send home?
Premium plugins often check licenses and updates, which is normal. But the privacy policy should say exactly what is sent. Be wary of plugins that collect visitor data you didn’t expect.
10. Can developers extend it?
Hooks and filters let you adjust behavior without editing the plugin’s code, so your changes survive updates. If you work with clients, this one matters more than it looks.
A quick way to use this list
You don’t need a perfect score. But if a plugin fails on update history, loading behavior or support, keep looking. Those are the problems that cost the most later.
We use this same checklist to build our own products. Shortcode Embed for React Apps loads only on pages that use it, documents its hooks, and comes with support from the developer who wrote it. Have a question about whether it fits your project? Get in touch.