How it is measured
Google's free PageSpeed Insights tool shows lab tests and, for busier pages, real-user data. The key real-user numbers are Core Web Vitals: how fast the main content appears, how quickly the page reacts to input and how much the layout jumps around.
What slows pages down
Common causes are large images, heavy scripts from chat widgets, trackers and ads, too many fonts, slow hosting and pages that load everything at once instead of what the visitor needs first.
Fixes that usually help most
Compress and resize images, remove scripts you don't need, load less important items later, use a CDN and good hosting, and cache pages. Test on a mid-range phone over mobile data, since that is how many visitors browse.
Why Page Speed matters
Slow pages lose visitors before they see your offer, and every ad click on a slow page costs the same as one on a fast page. Speed is also part of Google's page experience signals.
The chat widget that slowed everything
A law firm's homepage took several seconds to show its headline on phones. Most of the delay came from an oversized hero image and a chat widget that loaded before anything else. Compressing the image and delaying the widget made the page load much faster.
Common mistakes
Chasing a perfect score
A 100 score in a lab test isn't the goal. Focus on how fast real visitors see and use the page.
Testing only on desktop
Pages that feel fast on a laptop can be slow on phones. Check mobile results first.
Adding scripts without review
Every new tracker or widget adds weight. Review third-party scripts regularly and remove what you don't use.
Where we work on this