Optimization Detective (Developer Preview)

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Uses real user metrics to improve heuristics WordPress applies on the frontend to improve image loading priority.

Author:performanceteam (profile at wordpress.org)
WordPress version required:6.6
WordPress version tested:6.7.2
Plugin version:1.0.0-beta2
Added to WordPress repository:22-03-2024
Last updated:13-02-2025
Rating, %:0
Rated by:0
Plugin URI:https://github.com/WordPress/performance/tree...
Total downloads:152 321
Active installs:30 000+
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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 dependency which does not provide end-user functionality on its own. For that, please install the dependent plugin Image Prioritizer or Embed Optimizer (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 have the REST API accessible to frontend visitors since this is how metrics are collected about how a page should be optimized.

Please refer to the full plugin documentation for a technical introduction, filter/action hooks, and extensions that show use cases and examples.


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