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  4. Optimization Detective
Optimization Detective icon

Optimization Detective

Provides a framework for leveraging real user metrics to detect optimizations for improving page performance.

By WordPress Performance Team·Rum·Free
4.3(3 reviews)
·70K+ active installs·Updated 1 month ago
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As of April 2026, Optimization Detective is a WordPress rum plugin with 70K+ active installations and a 4.3/5 rating from 3 reviews. It has been downloaded 384K+ times in total. Requires WordPress 6.6+ and PHP 7.2+. Available on WordPress.org since 2024. Recently updated within the last 3 months. Downloads are down 19% this week. Top alternative: Vibes.

4.3/53 reviews
70K+active installs
384K+total downloads
2 yearssince 2024

Overview

This plugin captures real user metrics about what elements are displayed on the page across a variety of device form factors (e.g. desktop, tablet, and phone) in order to apply loading optimizations which are not possible with WordPress’s current server-side heuristics.

This plugin is a framework dependency which does not provide optimization functionality on its own. For that, please install the Image Prioritizer and Embed Optimizer dependent plugins (among others to come from the WordPress Core Performance team). There are currently no settings and no user interface for this plugin since it is designed to work without any configuration.

Your site must currently have the REST API accessible to unauthenticated frontend visitors since this is how real user metrics are collected about pages…

Read full description on WordPress.org

Ratings & Reviews

4.33 reviews
5 ★
2
4 ★
0
3 ★
1
2 ★
0
1 ★
0

Recent Reviews

great speed boost
by ivanmecina·8 months ago

I installed this plugin together with the image optimiser and auto size plugins and I have seen a speed increase from 67 to 99! really happy with the results and no obvious downsides so far. Keep up the good work.

Early days, and here for it
by Jonathan Wold·10 months ago·3 replies

Really appreciate the efforts going into giving us tools for further improving performance optimization in WordPress. Love that it does it’s work without configuration.

Recommendation: Add an “on install” notice that links to documentation, etc., to spare who missed the note in the description that there aren’t any settings, etc.

Gives Error
by jtohme·1 year ago·2 replies

Gives error: The Optimization Detective REST API endpoint is unavailable.

  • This topic was modified 1 year ago by jtohme.
  • This topic was modified 1 year ago by jtohme.
  • This topic was modified 1 year ago by jtohme.

Download Trends

Today: 318Yesterday: 465This week: 3KPeriod total: 225K

Compatibility

WordPress6.6+ requiredTested up to 7.0
PHP7.2+ required

Version Adoption

v1.0
96.0%
Other
4.0%

Top Alternatives to Optimization Detective

Vibes icon
Vibes
5400 installsUpdated 2 weeks ago
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Site24x7 Real User Monitoring icon
Site24x7 Real User Monitoring
4100 installsUpdated 1 year ago
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SpeedVitals RUM icon
SpeedVitals RUM
540 installsUpdated 9 months ago
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mPulse Real User Measurement icon
mPulse Real User Measurement
510 installsUpdated 5 years ago
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PageVitals icon
PageVitals
50 installsUpdated 1 year ago
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View all rum plugins →

Frequently Asked Questions

Changelog

1.0.0-beta5

Bug Fixes

  • Prevent fatal error in od_get_current_url_metrics_etag() when $wp_query->posts is null. (2347)

Enhancements

  • Add support for dns-prefetch links. (2256)
View full changelog on WordPress.org

Contributors

WordPress.orgWordPress.org
Plugin Info
Version
1.0.0-beta5
Last Updated
Feb 27, 2026
WP Requires
6.6+
Tested Up To
7.0
PHP Requires
7.2+
Active Installs
70K+
Downloads
384K+
Added
Mar 22, 2024
Business
Community

Tags

rumperformanceoptimization

Developer

W
WordPress Performance Team
10 plugins0.7M+ total installs
View all plugins →

Quick Compare

Optimization Detective vs Vibes→Optimization Detective vs Site24x7 Real User Monitoring→Optimization Detective vs SpeedVitals RUM→

Plugin data sourced from WordPress.org. Analysis and metrics by PluginSift.