Tag: performance
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The Site Speed Frontier with Performance Lab and Beyond
Analysis of the LCP impact for optimizations featured by the Performance Lab plugin and proposed for WordPress core. Presented at WCUS 2025.
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Web Performance Milestone
A couple months ago, this blog reached a web performance milestone which I shared on LinkedIn, Bluesky, Mastodon, Twitter: For the first time ever, I’ve just seen my blog appear in field metrics from CrUX (Chrome UX Report), albeit in desktop only and for the origin not an individual URL. Baby steps. In any case,…
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Instant Back/Forward Navigations in WordPress
The new No-cache BFCache plugin enables instant back/forward navigations, particularly while logged in. See demos below for the impact this has on browsing. The speed of page navigations in WordPress has seen a big boost in 6.8 with the introduction of Speculative Loading. When paired with the original feature plugin, site visitors can experience instant…
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Improve LCP by Deprioritizing Script Modules from the Interactivity API
Adding a fetchpriority of low to script modules and moving them from the head to the footer can improve LCP by >9%! I’ve written plugins you can use to implement this now while waiting for them to land in WordPress core.
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Boosting Performance with Optimization Detective
At WordCamp Asia 2025 today in Manila, I gave a talk about the future for how performance optimizations can be implemented in WordPress today via the Optimization Detective feature plugin. This project has been the focus of my work for the past 1½ years on the WordPress Core Performance Team. Here’s my talk from the…