WordPress Debugging

How to use Query Monitor

Timeline

Database queries

Hooks

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Blocks

Request

Scripts and styles

Translation files

PHP errors

Doing it Wrong

HTTP headers

User capabilities

Conditionals

Environment

Transients

Admin screen

Multisite

REST API requests

Guzzle HTTP requests

Related hooks

wp_die()

Profiling and logging

Assertions

Help

Query Monitor 4

Clickable stack traces

Silencing errors

Add-on plugins

Configuration constants

db.php symlink

Cache hit rate

Download WordPress plugin

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The Query Monitor browser extension is no longer maintained. It might return in the future.

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