What is page weight and why does it matter?
Page weight is the total size of all files a browser downloads to display a page. Here’s what contributes to it, how to measure it, and the fastest ways to reduce it.
Performance guides
Plain-English explanations of website performance, page weight, Core Web Vitals, and image optimization — written for site owners, not developers.
Core Web Vitals explained: LCP, FCP, TBT, and CLS
Google’s Core Web Vitals measure real-world page experience. This guide explains what each metric measures, what scores to aim for, and how they affect your search ranking.
WebP vs AVIF: which image format should you use?
Modern image formats can cut file sizes by 40–80% over JPEG and PNG with no visible quality loss. Here’s how WebP and AVIF compare and how to choose between them.
How third-party scripts slow down your website
Analytics tools, ad networks, and chat widgets add JavaScript that blocks your page from loading. Here’s how to identify them, measure their impact, and decide what to do.
What are render-blocking resources and how do you fix them?
Render-blocking JavaScript and CSS prevent the browser from displaying your page until they finish loading. This guide explains what causes the problem and how to resolve it.
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