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Something broke after an update? Work through this in order.
Not a scanner — a plugin conflict happens on your own site, so this walks through the same triage a developer would run by hand: a few questions, answered one at a time, ending in either a specific fix to try or a named next step.
STILL STUCK?
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If the conflict survives isolation, or you'd rather not spend the afternoon on it, a proper diagnosis is exactly what this covers.
Why this is a checklist, not a scan
Every other free tool on this site works by fetching a public page and reading what's actually there. A plugin conflict doesn't show up that way — it's usually inside wp-admin, sometimes only visible to you specifically, and it can't be diagnosed from the outside. So this works as an interactive decision tree instead: answer where you are, and it walks straight to the next relevant question, skipping everything that doesn't apply to your situation.
How the questions are ordered
The order follows how a real diagnosis actually runs: first confirm something changed and rule out your own browser cache, then narrow down where the problem is actually showing up, then isolate it properly with WordPress's own Troubleshooting Mode before guessing at which plugin is responsible. Elementor gets its own branches — a broken editor, a missing widget, and a licensing issue are three different causes with three different fixes, not one generic "Elementor is broken" answer.
What "isolating it properly" means
Deactivating plugins one at a time and retesting after each is the only reliable way to actually confirm which one is responsible — guessing from a hunch, or deactivating several at once, tells you less than it feels like it does. The free, official Health Check & Troubleshooting plugin from WordPress.org does this without affecting other visitors: its Troubleshooting Mode only changes what you see while logged in as yourself.
What to do with the result
Every path through this checklist ends one of two ways: a specific fix to try yourself, or a clear point where more guessing stops helping and a proper look is worth it. If that's where you land, WordPress Bug Fix covers the exact isolation and fix, and Elementor Bug Fix covers it specifically when Elementor is the piece involved.
FAQ
Questions about this checklist
Is this plugin conflict diagnostic actually free?
Yes. There's no signup, no email gate and no limit on how many times you can run it. It's a checklist, not a scan, so there's nothing to wait for either.
Why isn't this a URL scanner like the other free tools?
A plugin conflict happens on your own site, often inside wp-admin or only visible to you specifically — fetching a public page can't see that. This works as an interactive decision tree instead, the same triage a developer would actually run through by hand.
Will any of these steps delete my data or break anything further?
No. Deactivating a plugin to test switches off its code but leaves its settings and data untouched, ready the moment you reactivate it. Nothing this checklist suggests is destructive, and testing on staging first is called out wherever it matters.
What if I can't isolate it to one specific plugin?
That's flagged directly — a conflict that survives one-at-a-time isolation, or spans several plugins at once, usually means a hook-priority collision or a shared-library clash that needs a tool like Query Monitor or a developer's eyes, not more guessing.
Does this cover Elementor specifically?
Yes — a broken editor, a missing widget, or a licensing/template-library issue each get their own branch, since those are some of the most common ways a WordPress site actually breaks after an update.
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