Page speed is a critical factor for user experience and SEO, so it's natural to question how any third-party script might affect it. A recent customer raised concerns about potential performance issues when using Crazy Egg, and we worked closely with them to put those concerns to rest. Here’s what we found.
Step-by-Step Process: Testing Crazy Egg’s Impact
Our Customer Success team recommended the following process to evaluate whether Crazy Egg affects page speed:
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Run a Baseline Speed Test
Start by measuring your site's performance without Crazy Egg installed. The customer used Datadog RUM and Google Lighthouse (Mobile) for this step. These tools help capture critical metrics like First Contentful Paint (FCP), Largest Contentful Paint (LCP), and Total Blocking Time (TBT). -
Install Crazy Egg
After recording baseline performance metrics, the customer installed Crazy Egg, configured the desired settings, and set up tracking snapshots. -
Re-Test Performance
Once Crazy Egg was fully installed and operational, the customer re-ran their speed tests using the same tools and configurations.
The Results: No Negative Impact on Performance
The customer found that Crazy Egg’s script:
- Does not block the main thread: This ensures that the script doesn’t interfere with your website's loading experience.
- Maintained pre- and post-installation metrics: Key performance metrics, such as page load time and interactivity, remained unchanged even with Crazy Egg running sitewide.
Why Crazy Egg is Built for Performance
Crazy Egg's lightweight script is optimized to minimize the impact on your site’s speed. It runs asynchronously, meaning it doesn’t delay loading other essential resources on your page. This ensures your visitors enjoy a seamless experience while you gather critical insights about their behavior.
How You Can Test It Yourself
If you're concerned about performance, you can follow the same process our customer used:
- Use tools like Google Lighthouse, GTmetrix, or Datadog RUM to measure your current page speed.
- Install Crazy Egg and configure your tracking.
- Re-run your performance tests to compare results.
What If You Notice an Issue?
While Crazy Egg is designed to operate seamlessly without impacting performance, we understand that every site is unique. If you ever notice an issue after installing Crazy Egg, please get in touch with our Customer Success team immediately. We'll work with you to investigate and resolve the issue, ensuring Crazy Egg works harmoniously with your site.
Conclusion
Crazy Egg is designed to provide valuable insights without compromising your site’s speed or user experience. By following the above process, you can confidently ensure that our tool works harmoniously with your site’s performance. And if any challenges arise, our team is here to help you every step of the way.
Have questions or need assistance? We’re just a message away!