The website speed checklist every small business should run in 2026

Most people won’t wait for a slow website. They tap back and choose a competitor, often without you ever knowing they visited. Speed also affects how Google ranks your pages, especially on mobile. The good news: most speed problems come from a handful of common causes you can check yourself.

1. Measure before you change anything

Open PageSpeed Insights, enter your homepage and look at the mobile results first. Pay attention to the three Core Web Vitals:

• Largest Contentful Paint (LCP): how quickly the main content appears. Aim for under 2.5 seconds.
• Interaction to Next Paint (INP): how quickly the page responds when someone taps. Aim for under 200 milliseconds.
• Cumulative Layout Shift (CLS): how much the layout jumps while loading. Aim for under 0.1.

Write the numbers down so you can see whether each change helps.

2. Shrink your images

Oversized images are the most common cause of slow pages. A photo straight from a phone can be 4–8 MB; on a website it rarely needs to be more than 200 KB.

• Resize images to the largest size they’re actually displayed at.
• Use modern formats like WebP or AVIF.
• Lazy-load images further down the page, but not your main hero image, which should load immediately.
• Always set width and height so the layout doesn’t jump.

3. Cut plugins and scripts you don’t need

Every plugin, chat widget, tracking script and slider adds weight. List what’s installed and ask of each one: is this bringing in customers? Remove anything unused, and avoid having several plugins that do the same job.

4. Turn on caching

Caching stores a ready-made version of your pages so they don’t have to be rebuilt for every visitor. Many hosts offer server-level caching. Use one caching solution and configure it carefully rather than stacking several.

5. Be careful with fonts

Each font family and weight is another file to download. Two families with a few weights is usually plenty. Hosting fonts on your own server and using font-display: swap helps text appear quickly.

6. Check your hosting

If your server is slow to respond, no amount of optimisation will fully fix it. Look at the “server response time” in your speed test. If it’s consistently high, it may be time for a better hosting plan.

7. Test on a real phone

Finally, open your site on an average phone using mobile data, not office Wi-Fi. That’s how most of your customers experience it.

The bottom line

A fast website is not a technical luxury. It’s part of your customer experience. If you’d like a second pair of eyes, iReach offers website reviews and builds new sites with performance designed in from day one. Learn about our website development service.