Boost Your WordPress Speed for Free

Boost Your WordPress Speed for Free

Table of Contents

  1. Introduction
  2. Why Website Speed Matters
    • User Experience
    • Conversions
    • Search Engine Ranking
    • Handling High Traffic
    • Impressions
  3. What is Caching
  4. How to Optimize Your Website Speed
    • Installing the SiteGround Optimizer Plugin
    • Enabling Caching
    • Configuring Caching Options
    • Image Compression and Lazy Loading
    • Further Optimization Techniques
  5. Testing and Monitoring Your Website Speed
  6. Conclusion


In this tutorial, I will show you step by step how to make your WordPress website faster for free. Fast websites are important for various reasons, including better user experience, higher conversions, improved search engine rankings, the ability to handle high traffic, and creating positive impressions. Caching plays a crucial role in optimizing website speed, and in this article, we will explore how caching and the use of the SiteGround Optimizer plugin can help improve your website's performance.

Why Website Speed Matters

User Experience

A fast website provides a seamless user experience. When websites take too long to load, users tend to get distracted, bored, or annoyed, which may lead them to leave the website altogether. By optimizing your website speed, you can ensure that users have a smooth and enjoyable browsing experience.


Website speed has a direct impact on conversions. Studies have shown that even a slight delay in page load time can result in a significant decrease in sales. For example, Amazon experienced a 7% drop in sales when they deliberately slowed down their website. By improving your website's speed, you can increase the chances of converting visitors into customers.

Search Engine Ranking

Google considers website speed as one of the factors when determining search engine rankings. Websites that load quickly and provide a smooth user experience are more likely to rank higher in search results. On the other hand, slow-loading websites are penalized and may rank lower or not be indexed at all. By optimizing your website's speed, you can improve its visibility and organic search traffic.

Handling High Traffic

When your website receives a surge in traffic, it needs to be able to handle the increased load without crashing or slowing down significantly. By optimizing your website using caching techniques, you can ensure that your website can handle a higher number of simultaneous visitors without going offline.


A fast website can leave a positive impression on your visitors. Whether you're a business owner showcasing your products or a blogger sharing your content, having a fast website can help you make a strong first impression. Visitors are more likely to stay on your site, explore further, and engage with your content if they perceive your website as fast and reliable.

What is Caching

Caching is a technique that helps improve website speed by generating and serving static HTML files instead of dynamically generating pages on each user request. By caching your website, you can reduce the number of steps involved in rendering a page, resulting in faster load times. Caching plugins, such as the SiteGround Optimizer, optimize various aspects of your website, including image compression, minification of CSS and JavaScript files, and browser-specific caching.

How to Optimize Your Website Speed

To optimize your website speed, we will be using the SiteGround Optimizer plugin. Even if you don't host your website with SiteGround, you can still use this plugin to improve your website's performance.

Installing the SiteGround Optimizer Plugin

  1. Go to your WordPress dashboard and navigate to "Plugins" > "Add New."
  2. Search for "SiteGround Optimizer" in the plugin repository.
  3. Click "Install Now" next to the "SG Optimizer" plugin.
  4. Once installed, click "Activate" to activate the plugin.

Enabling Caching

  1. Go to the SiteGround Optimizer settings by navigating to "Settings" > "SG Optimizer."
  2. Click on the "Caching" tab.
  3. Enable file-based caching by toggling the "Dynamic Cache" and "Memcached" options to "On."
  4. Save the changes.

Configuring Caching Options

  1. Scroll down to the "Cache Exclusion Rules" section to exclude specific URLs or post types from caching. For example, you may want to exclude the checkout page or any pages that contain personal data.
  2. Under "Browser Caching Rules," you can configure browser-specific caching if needed.
  3. Test the caching functionality by clicking on the "Test Configuration" button. This will ensure that your homepage and other pages are properly cached.

Image Compression and Lazy Loading

  1. In the SiteGround Optimizer settings, go to the "Media" tab.
  2. Enable image compression by setting the desired compression level.
  3. Enable lazy loading to load images only when they become visible on the user's screen.
  4. Configure additional options like maximum image width and webP image support.

Further Optimization Techniques

The SiteGround Optimizer plugin also provides additional optimization options, such as minifying CSS files, combining CSS and JavaScript files, minifying HTML output, optimizing web fonts, and removing query strings. These options can further enhance your website's performance, but it's important to test your website after making changes to ensure everything works as intended.

Testing and Monitoring Your Website Speed

After optimizing your website, it's crucial to test and monitor its speed regularly. Tools like Pingdom or GTmetrix can help measure your website's performance, providing insights into load times, page size, and the number of requests. Regular monitoring allows you to identify any performance issues and take necessary steps to maintain an optimal website speed.


By optimizing your WordPress website using caching techniques and the SiteGround Optimizer plugin, you can significantly improve your website's speed and performance. A faster website not only enhances user experience and conversions but also boosts search engine rankings and allows your website to handle high traffic effectively. Remember to regularly test and monitor your website's speed to ensure optimal performance.

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