Query Monitor

Lesson in the WordPress Roadmap · Stage 20: Backups & Recovery

Last updated 14 September 2026

What is Query Monitor?

Query Monitor is a free WordPress plugin designed for developers. It helps identify and debug performance bottlenecks by providing detailed information about database queries, PHP errors, hooks and actions, block editor blocks, enqueued scripts and stylesheets, HTTP API calls, and more. This allows developers to quickly pinpoint slow queries, problematic plugins, or inefficient theme code, leading to a faster and more stable WordPress site.

Study this in the interactive course See the whole WordPress roadmap

Free resources to learn Query Monitor

Official docsQuery Monitor
Official docsQuery Monitor – The developer tools panel for WordPress
ArticleQuery Monitor – Debug WordPress and Improve Website Performance
VideoQuery Monitor - 7 Important Tools for Modern WordPress Development #1

Query Monitor: common questions

Can I learn Query Monitor in Hindi?

This lesson is written in English. Once you sign in, open it in the interactive course and ask the AI tutor to explain Query Monitor in Hindi or Hinglish. The tutor answers from this lesson’s own text, so it stays on the syllabus, and it runs on your own Google, OpenAI or Anthropic key.

Is this Query Monitor tutorial for beginners?

It is lesson 90 of 115 in the free WordPress roadmap, in stage 20, Backups & Recovery. If you are new to WordPress, start from stage 1 and come back here in order; if you already know the earlier stages, this lesson stands on its own.