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How a slow website affects your visitors, your sales, and your position on Google — and why speed is worth investing in.

You probably know a slow website is annoying. But slow sites do more than frustrate visitors — they cost real money, hurt your Google ranking, and send potential customers straight to your competitors.

Quick summary

Slow websites lose visitors. Google's own performance documentation collects case studies where faster pages meant measurably better retention, conversion and revenue. Speed also feeds into your Google ranking. The good news: most speed problems are fixable.

What visitors actually do when a site is slow

People are impatient online — and for good reason. They have options.

The clearest published figure comes from the BBC, which Google cites in its own performance course: the BBC found it lost an additional 10% of users for every additional second its site took to load. Every extra second is a slice of your audience gone before they have read a word.

A visitor who leaves because your site was slow may not come back, and may remember the experience next time they see your name.

How speed affects your sales

E-commerce businesses see this most clearly, but it applies to every kind of site.

When a page loads faster, people are more likely to:

Read your content
Click through to other pages
Fill in a contact form
Make a purchase

When a page loads slowly, people bounce (leave immediately) — see bounce rate — and a visitor who never sees your page cannot buy from you. Google's published case studies point the same way: Renault reported better bounce and conversion rates after working on Largest Contentful Paint, and Vodafone reported that a 31% improvement in LCP increased sales by 8%. Your own figures will differ, but the direction is consistent.

The compounding effect

A slow site creates a negative loop: slow load → visitors leave → fewer enquiries and sales → fewer repeat visitors and recommendations → less to build on.

How speed affects your Google ranking

Google says its core ranking systems do use Core Web Vitals, the set of speed and stability measurements at the heart of what it calls page experience.

Two things to keep in mind. There is no single "page experience signal" you pass or fail — Google's ranking systems look at many signals. And good scores do not guarantee a top position: in Google's words, "trying to get a perfect score just for SEO reasons may not be the best use of your time." Speed is one real factor among many in SEO, and the stronger reason to fix it is your visitors.

Speed and your visitors' trust

A slow or visually unstable site feels unprofessional. Visitors judge the quality of your business partly by the quality of your website. A site that loads instantly feels reliable. A site that stutters and jumps feels untrustworthy.

This matters especially for first-time visitors who do not know you yet.

How fast is fast enough?

There is no single "correct" speed, but Google publishes "good" thresholds, and hitting the number exactly still counts as good:

Largest Contentful Paint (LCP) — the main content loads in 2.5 seconds or less
First Contentful Paint (FCP) — something visible appears within 1.8 seconds
Interaction to Next Paint (INP) — the page responds to a tap or click in 200 milliseconds or less

Google measures these at the 75th percentile of your real visitors — three visits in four — so the target is "fast for most visitors", not "fast on a good day". Read more in Core Web Vitals explained.

Common questions

Does speed really affect SEO that much?

Speed is one of many ranking factors. It will not magically move you from page 10 to page 1, but Google confirms its ranking systems use Core Web Vitals. Google also says relevance comes first: it will show the most relevant content even when the page experience is sub-par, and page experience contributes most when there is a lot of equally helpful content to choose between. More importantly, a slow site drives visitors away before they see what you offer.

My site looks fast to me. Why is it slow for others?

You probably have the site cached in your browser (it "remembers" it from last time). New visitors do not have that advantage. Use a tool like PageSpeed Insights to test as a new visitor would experience it. Its mobile test deliberately simulates a mid-tier phone on a mobile network, which is closer to a typical visitor than your own laptop and broadband.

Is this only a problem for big sites?

Not at all. Small sites can be very slow if images are unoptimized, the hosting is poor, or too many plugins are running. Small sites can also be very fast with the right setup. Size matters less than the decisions made when building and maintaining the site.

Need a hand?

If you're stuck, email support@chykalophia.com and we'll help. Include your website address and a screenshot if you can.

Why website speed matters