Does Sitewiz Affect Website Performance?
A common question we receive: Will Sitewiz's tracking script slow down my site?
The short answer is: No.
While any JavaScript added to a website can have an impact, the Sitewiz tracking script is designed to minimize any performance impact. Our script is asynchronous and non-blocking, meaning it won’t delay your site’s initial load.
Asynchronous vs. Synchronous Code
Synchronous Code: Tasks are executed one by one, and each task must finish before the next begins.
Asynchronous Code: Tasks run concurrently, allowing multiple operations to complete faster.
Sitewiz's script is asynchronous, ensuring that your critical resources load without delay.
Performance Overview
We tested Sitewiz's script on a sample website to measure its performance impact. Here are the results:
| Metric | Details |
|---|---|
| Script Size | 114 KB (compressed) |
| Execution Type | Asynchronous (non-blocking) |
| Total Blocking Time | 0 ms |
| Long Tasks | Minimal |
Why the Script Size is Manageable
Although the script is 114 KB, here’s why it has minimal impact:
- Compression: The script is served in a compressed format.
- Asynchronous Loading: It doesn’t block the initial page load.
- Caching: The script is cached by the browser, reducing the need for frequent downloads.
Sitewiz's script is designed with performance in mind. By loading asynchronously and being non-blocking, it ensures your site remains fast and responsive.