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Fast sites win more work

People abandon slow websites. Search engines rank them lower. And on a phone connection — which is how most people will visit you — the difference between a fast site and a slow one is stark.

What "slow" costs you

Every additional second before your page appears loses some proportion of the people waiting. They do not send a complaint; they hit back and click the next result. This is invisible from your end, which is why speed is chronically under-prioritised by business owners and over-prioritised by good developers.

Search engines also measure loading experience directly as a ranking factor. Between two equally relevant pages, the faster one wins.

What actually makes sites slow

• Enormous images. The single most common cause. A photo straight off a phone can be several megabytes; the same image properly sized and compressed can be a fraction of that with no visible difference.
• Too many plugins and scripts. Every add-on loads its own code. Sites accumulate these over years until the page is mostly other people's software.
• Cheap, overloaded hosting. If the server takes a second to even begin responding, nothing on the page can start.
• Tracking and chat widgets. Each analytics tool, pixel and embedded widget adds weight, often loaded from someone else's slow server.
• Web fonts. Loading six weights of three fonts delays text appearing at all.
• Video backgrounds. Beautiful, and frequently the heaviest thing on the page by an order of magnitude.

The fixes, ranked by effect

1. Compress and correctly size every image, and use modern formats
2. Remove plugins and scripts you are not genuinely using
3. Move to hosting that responds quickly
4. Enable caching so repeat visitors do not re-download everything
5. Use a content delivery network to serve files from nearer the visitor
6. Limit fonts to what you actually use
7. Load anything below the fold only when it is scrolled to

Why builder platforms struggle here

Drag-and-drop website builders have to support every possible layout, so they ship large amounts of generic code whether your site uses it or not. That is the trade-off for convenience. A hand-built site only contains what it needs, which is why it can be a fraction of the size for the same result.

How fast is fast enough

Aim for the main content appearing within about two and a half seconds on a mobile connection, with the page not jumping around as it loads. Beyond that you are into diminishing returns — better to spend the effort on content that answers customers' questions.

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