Page Speed

Page speed is how quickly a page becomes visible and usable, a driver of both conversion and search visibility.

What page speed is

Page speed is how fast a page becomes visible and usable: content appearing, taps responding, layout settling.

It’s measured both in lab tests and from real visitors’ devices, and the real-world numbers are the ones that count.

Why page speed matters

Slow pages bleed twice: visitors abandon before content appears, and search engines fold speed signals into rankings. Every second of delay is paid in both bounces and reach.

What usually slows stores down

  • Oversized, unoptimized images
  • Third-party scripts stacking up: pixels, chats, apps
  • Render-blocking code before content paints
  • Slow hosting and missing caching or CDN

Frequently asked questions

Where should speed work start?

Images and scripts, on the highest-traffic templates: compress and lazy-load the first, audit and cut the second. Most stores find seconds there before touching infrastructure.

Do third-party widgets have to hurt speed?

No: well-built ones load asynchronously after content paints. Test the page before and after adding any script, and cut the ones that don’t earn their milliseconds.

Related terms

Mobile Commerce · Bounce Rate · Conversion Rate