Website Speed
Do YouTube Embeds Slow Down Your Website? Use a Facade
An embedded YouTube video loads its player for every visitor, watched or not. Here is how to measure that cost and remove…
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Category: Website Speed
Guides to website speed and performance: Core Web Vitals, testing, images, caching, code, hosting, WordPress and WooCommerce.
Website Speed
Lighthouse vs PageSpeed Insights: Why Scores Differ
Your developer's Lighthouse score is green and your PageSpeed Insights score is orange. Both are honest. Here is why they differ and…
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Website Speed
Reading the Core Web Vitals Report in Search Console
A walk through Search Console's Core Web Vitals report: what each screen shows, why pages are grouped, why data is missing and…
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Website Speed
Website Suddenly Slow? A What-Changed Checklist
A site that was quick and then was not has a cause with a date. This checklist helps you find the date…
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Website Speed
How to Keep a Website Fast After It Has Been Optimised
Fast sites rarely slow down in one day. They drift, one upload and one plugin at a time. The habits that keep…
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Website Speed
How to Choose a Fast WordPress Theme
A fast theme demo proves little about your own site. Here is how to test themes fairly, spot bundled weight and keep…
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Website Speed
Gzip vs Brotli Compression: Check and Enable It
Compression shrinks HTML, CSS and JavaScript on the way to the browser. Here is how gzip and Brotli differ, how to check…
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Website Speed
Defer vs Async JavaScript: Which to Use and What Breaks
Defer and async both stop scripts holding up the page. They differ in when the script runs, and that one difference explains…
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Website Speed
PHP OPcache Explained: The Cache Your Host Runs for You
OPcache keeps compiled PHP in memory so WordPress does not recompile its files on every request. How to check it is on…
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Website Speed
Responsive Images srcset: Smaller Images for Phones
WordPress makes smaller copies of every image, yet phones often download the big one. Here is how srcset and sizes decide which…
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