Why website speed matters, and how to improve it

The short answer

A visitor arriving from a mobile ad doesn't wait. A slow site means paying for a click that never became a real visit, and it affects the page experience search engines consider. Most slowness comes from large images, too many plugins, unnecessary fonts and scripts, and weak hosting.

How to measure

Test your most important pages, not just the home page, with PageSpeed Insights, focusing on mobile results.

Quick improvements

  • Compress images and convert them to WebP at sensible sizes.
  • Remove unused plugins and scripts, especially on WordPress.
  • Load only the fonts you use.
  • Defer anything that isn’t on the first screen.
  • Suitable hosting and a CDN if visitors come from different countries.

Don’t overdo it

The goal is a fast experience for visitors, not a perfect score. Some tools are essential for measurement or payments even if they cost a few points.

Frequently asked questions

Does speed affect Google rankings?

Page experience is one of many factors and useful content matters most, but a slow site loses visitors regardless.

What's usually the slowest element?

Large, uncompressed images on most sites.

Further reading

Related service: Website Design & Development

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