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Web · August 18, 2026 · 6 min

Why Website Speed Matters: Core Web Vitals and Sales

How slow sites lose sales and rankings, what Core Web Vitals are, and how to fix them.

Website speed directly affects sales and Google rankings: studies show every extra second of load time measurably lowers conversion. Speed is no longer "nice to have" — it is a measured ranking factor.

What a slow site costs

Visitors abandon a page that won't load within 2–3 seconds — you lose the person your ads or SEO paid for before they even see the content. Slowness wastes both ad budget and organic traffic; in e-commerce it is direct revenue loss.

What Core Web Vitals are

Google's three user-experience metrics: LCP (largest content load time), INP (responsiveness to interaction) and CLS (visual shifts). These are official ranking signals, measurable free with PageSpeed Insights.

How to speed up your site

  • Optimise images (modern format, right size, lazy loading).
  • Use quality hosting and caching.
  • Remove unnecessary plugins/scripts.
  • Use a CDN for global speed.

Speed needs ongoing maintenance — budget for it, as covered in website annual costs in Turkey.

Summary

A fast site means more conversions and better rankings; Core Web Vitals make it measurable. To build a fast, performant site, see our web design service.

Want this handled by a local team? See our web design service. Core Web Vitals-compliant, fast and conversion-focused site builds.

Frequently asked questions

Does website speed affect SEO?

Yes. Google uses three Core Web Vitals metrics (LCP, INP, CLS) as official ranking signals. A slow site both drops in rankings and loses visitors before they see the content.

What are Core Web Vitals?

Google's three user-experience metrics: LCP (largest content load time), INP (responsiveness to interaction) and CLS (visual layout shifts). They are measured free with PageSpeed Insights.

How can I speed up my site?

Optimise images in modern formats and correct sizes, use quality hosting and caching, remove unnecessary plugins/scripts and use a CDN. Speed is an ongoing maintenance task, not a one-off fix.

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