How Query Monitor – The developer tools panel for WordPress Affects Your WordPress Speed

B+

Estimated Speed Score

+5 ms

TTFB Impact

+2 MB

Memory Impact

DB Queries

Low impact

Plugin Overview

Active Installs200K+

Rating4.9/5 (463)

Tested Up ToWP 6.9.1

Requires PHP7.4+

Last UpdatedDec 11, 2025

Downloads18.9M+

AuthorJohn Blackbourn

WP.orgView on WordPress.org

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Query Monitor – The developer tools panel for WordPress Speed Score - MakeWPFast

Performance Analysis

Performance Impact

Query Monitor – The developer tools panel for WordPress receives an estimated speed score of B+. Our real benchmark tests measured the following impact when activating this plugin:

TTFB impact: +5 ms
Memory impact: +2.0 MB
Additional DB queries: +1

Overall activation impact: low. This plugin adds minimal overhead to your WordPress site.

Maintenance Status

Last updated: 2025-12-11. Requires PHP 7.4+. Trusted by 200K+ active installations.

Benchmark data measured in an isolated Docker environment (WordPress 6.8, PHP 8.3, GeneratePress). See our full methodology.

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Frequently Asked Questions

Does Query Monitor – The developer tools panel for WordPress slow down WordPress?

Query Monitor – The developer tools panel for WordPress has an estimated speed score of B+. It should have minimal impact on your site speed.

Is Query Monitor – The developer tools panel for WordPress still maintained?

Query Monitor – The developer tools panel for WordPress was last updated on 2025-12-11. It has 200K+ active installations, indicating it is actively maintained and widely trusted.

What are the best alternatives to Query Monitor – The developer tools panel for WordPress?

Check our plugin reviews in the Developer category for alternatives. We compare plugins side-by-side on speed, features, and user ratings to help you find the best fit.