Check Your WordPress Site Speed
Run a free Lighthouse audit on your WordPress site and export the full JSON report. Use it with ChatGPT, Claude, or Cursor to get plugin recommendations and exact code changes for better Core Web Vitals.
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Loading...Common performance issues on WordPress sites
These are the issues most frequently found in WordPress Lighthouse audits. Your report will tell you exactly which ones apply to your site.
Render-blocking scripts and styles
WordPress plugins often enqueue scripts on every page load. Eliminating render-blocking resources is typically the highest-savings fix for WordPress sites.
No image optimization
WordPress sites without an image optimization plugin (like Imagify or Smush) serve large uncompressed images — a common cause of poor LCP scores.
No page caching
Without caching, WordPress generates pages dynamically on every request. Server response time (TTFB) above 600ms will delay every other metric.
Excessive plugins adding JS/CSS
Each plugin that adds scripts and styles to every page increases Total Blocking Time (TBT) and page weight, even if the plugin is only used on specific pages.
Pro tip: The Lighthouse report's stackPacks section includes WordPress-specific hints for every failing audit — it may recommend specific plugins like WP Rocket, Autoptimize, or Asset CleanUp that directly address your issues.
Want a detailed tutorial? Read our step-by-step performance fix guide →