How to Speed Up a Slow Website: A Practical Checklist

A visitor taps your link from a social post, waits, watches a blank screen, and leaves. They never see your beautiful homepage or your donate button. Speed is part of the welcome your website offers, especially on phones with spotty connections.

The encouraging news is that most slow small-business and ministry websites suffer from the same handful of fixable problems. Here is how to measure, then work through them in a sensible order.

Step 1: Measure before you change anything

Use a free tool to see where you stand:

• PageSpeed Insights from Google tests a page and shows both lab results and, where available, data from real visitors.
• Lighthouse, built into Chrome's developer tools, runs similar tests on your own computer.
• Your own phone, on mobile data rather than Wi-Fi, tells you what visitors actually experience.

Test your homepage plus a few important pages, such as your contact, donation or product pages. Write down the results so you can compare after each fix.

Step 2: Understand Core Web Vitals

Google's Core Web Vitals measure three parts of the visitor experience:

• Largest Contentful Paint (LCP) measures how quickly the main content appears. Google considers 2.5 seconds or less good.
• Interaction to Next Paint (INP) measures how quickly the page responds when someone taps or clicks. 200 milliseconds or less is considered good.
• Cumulative Layout Shift (CLS) measures how much the page jumps around while loading. A score of 0.1 or less is considered good.

These are part of how Google evaluates page experience, though helpful, relevant content matters more for search. Mostly, they are a good proxy for whether visitors feel your site is pleasant to use.

Step 3: Work through the usual culprits

Oversized images

This is the most common problem by far. A photo straight from a camera or phone can be many times larger than needed.

• Resize images to the largest size they will actually display.
• Compress them, and use modern formats such as WebP or AVIF where your platform supports them.
• Let images below the first screen load lazily, only when visitors scroll to them.
• Set image width and height so the page does not jump as they load.

Too many plugins, scripts and embeds

Each plugin, tracking script, chat widget, social media feed and embedded video adds weight. Remove anything you no longer use. For what remains, ask whether it earns its place on every page or only needs to load where it is used.

Missing caching

Caching stores ready-made copies of pages so the server does not rebuild them for every visitor. Most hosting providers and content management systems offer page caching. Browser caching lets returning visitors reuse files they already downloaded.

No content delivery network

A content delivery network (CDN) stores copies of your images, styles and scripts on servers around the world, so they load from somewhere closer to each visitor. Many hosts include one or make it easy to add.

Heavy fonts

Each font family and weight is another download. Limit yourself to one or two families and only the weights you use.

Autoplaying background video

Large background videos are beautiful and heavy. Consider a still image instead, or a lighter video with a poster image that shows while it loads. For longer videos, host them on a video platform and embed them carefully.

Sliders and carousels

Rotating banners load several large images at once and are often ignored by visitors. A single strong image with a clear message is usually faster and more effective.

Slow hosting

If your server takes a long time to respond before anything loads, no amount of image optimization will fully fix it. Our guide to web hosting types explains when an upgrade makes sense.

Database clutter

On content management systems, old revisions, spam comments and leftover data from removed plugins can slow things down. Clean up carefully, after taking a backup.

Do not chase a perfect score

Speed tools grade pages with scores and colors, and it is easy to become fixated on reaching a perfect number. The goal is a site that feels quick and stable for real visitors, especially on phones. Fix the biggest problems first, the ones the tools flag as having the largest impact, and stop when further changes would cost more time than they give back. A fast, helpful page with a good but imperfect score serves people well.

Step 4: Recheck and keep it fast

After each change, test again and compare with your notes. Then build speed checks into your routine, since new images, plugins and embeds add up over time. Our website maintenance plan includes a monthly speed check, and if you are deciding between an app and a site, our guide to whether you need a mobile app or a mobile-friendly website shows why a fast mobile site matters so much.