Knowledgebase

LiteSpeed Cache – What It Is and How It Helps

If you’re running a WordPress website and looking to improve performance, LiteSpeed Cache is one of the most effective tools available. It can significantly speed up your site while also reducing the load on your hosting resources.

What is LiteSpeed Cache?

LiteSpeed Cache is a powerful WordPress plugin designed to work seamlessly with the LiteSpeed Web Server, which runs on Firstserv hosting.

It improves performance by caching pages—in simple terms, this means:

• When a visitor loads a page, the server creates it dynamically
• LiteSpeed then stores a copy of that page
• The next time someone visits, the server delivers the saved (cached) version instantly

This reduces the time it takes to generate pages, resulting in:

✅ Faster load times
✅ Improved user experience
✅ Reduced server resource usage

Why Use LiteSpeed Cache?

Using LiteSpeed Cache provides several benefits:

• Faster website performance – cached pages load much quicker
• Lower resource usage – fewer repeated server processes
• Improved SEO – faster sites often rank better in search engines
• Better visitor experience – reduced loading delays

Important Recommendation

We strongly recommend using only one caching or optimisation plugin.

LiteSpeed Cache is designed to work directly with the LiteSpeed server and already includes comprehensive optimisation features. Running multiple caching plugins can cause conflicts and reduce performance.

👉 If you install LiteSpeed Cache, you should disable and remove any other caching plugins.

How to Install LiteSpeed Cache

1. Log in to your WordPress dashboard
2. Navigate to Plugins → Add New
3. In the search bar, type “LiteSpeed Cache”
4. Click Install Now
5. Once installed, click Activate

Configuration

The LiteSpeed Cache plugin is pre-configured by default, meaning:

• It works immediately after activation
• No advanced setup is required for most websites

✅ You can start benefiting from improved performance straight away.

Advanced Features

For users who want more control, LiteSpeed Cache includes a wide range of optimisation tools:

• Image optimisation
• CSS/JavaScript minification
• Browser caching
• Database optimisation
• Lazy loading

These features allow you to fine-tune performance based on your website’s needs.

Redis Object Caching (Premium Hosting)

If you are using a Firstserv Premium or Business hosting plan, you may also have access to Redis Object Caching.

This feature:

• Improves database performance
• Reduces server load
• Speeds up dynamic content (e.g. WooCommerce or membership sites)

Refer to our Redis setup guide for instructions on enabling this feature.

Further Optimisation Tips

To get the best performance from your WordPress site, consider:

• Optimising images before upload
• Using LiteSpeed’s built-in image optimisation tools
• Keeping plugins and themes up to date
• Regularly reviewing performance settings

Summary

LiteSpeed Cache is a highly effective performance tool that:

• Speeds up your WordPress site
• Reduces resource usage
• Improves overall reliability

For most Firstserv customers, it’s one of the easiest and most impactful ways to optimise website performance.

If you need help installing or configuring LiteSpeed Cache, the Firstserv support team is always happy to assist.