Image Prioritizer

Wopisanje

This plugin optimizes the loading of images which are the LCP (Largest Contentful Paint) element, including both img elements and elements with CSS background images (where there is a style attribute with an background-image property). Different breakpoints in a theme’s responsive design may result in differing elements being the LCP element. Therefore, the LCP element for each breakpoint is captured so that high-fetchpriority preload links with media queries are added which prioritize loading the LCP image specific to the viewport of the visitor.

In addition to prioritizing the loading of the LCP image, this plugin also optimizes image loading by ensuring that loading=lazy is omitted from any image that appears in the initial viewport for any of the breakpoints, which by default include:

  1. 0-320 (small smartphone)
  2. 321-480 (normal smartphone)
  3. 481-576 (phablets)
  4. >576 (desktop)

If an image does not appear in the initial viewport for any of these viewport groups, then loading=lazy is added to the img element.

👉 Note: This plugin optimizes pages for actual visitors, and it depends on visitors to optimize pages (since URL metrics need to be collected). As such, you won’t see optimizations applied immediately after activating the plugin. And since administrator users are not normal visitors typically, optimizations are not applied for admins by default.

There are currently no settings and no user interface for this plugin since it is designed to work without any configuration.

This plugin requires the Optimization Detective plugin as a dependency. Please refer to that plugin for additional background on how this plugin works as well as additional developer options.

Instalacija

Installation from within WordPress

  1. Visit Plugins > Add New.
  2. Search for Image Prioritizer.
  3. Install and activate the Image Prioritizer plugin.

Manual installation

  1. Upload the entire image-prioritizer folder to the /wp-content/plugins/ directory.
  2. Visit Plugins.
  3. Activate the Image Prioritizer plugin.

HSP

Where can I submit my plugin feedback?

Feedback is encouraged and much appreciated, especially since this plugin may contain future WordPress core features. If you have suggestions or requests for new features, you can submit them as an issue in the WordPress Performance Team’s GitHub repository. If you need help with troubleshooting or have a question about the plugin, please create a new topic on our support forum.

Where can I report security bugs?

The Performance team and WordPress community take security bugs seriously. We appreciate your efforts to responsibly disclose your findings, and will make every effort to acknowledge your contributions.

To report a security issue, please visit the WordPress HackerOne program.

How can I contribute to the plugin?

Contributions are always welcome! Learn more about how to get involved in the Core Performance Team Handbook.

The plugin source code is located in the WordPress/performance repo on GitHub.

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0.1.1

  • Fix background-image styled tag visitor’s handling of parsing style without background-image. (1288)

0.1.0

  • Initial release.