We conducted comprehensive performance testing of three OpenCart versions 3.0.3.8, 3.0.4.1, and 4.1.0.3 using synthetic tests and real network conditions.
![5 OpenCart modules that will improve your Google rankings [2025]](https://opencartbot.com/image/cache/catalog/blog/google-ranking-opencart-437x100.jpg)
Over the years of working with various OpenCart and SEO projects, we have developed five cool modules for them that provide the fastest and most noticeable result in improving search positions.
One of the most common questions we get from clients and developers is: should I switch to OpenCart 4 already, or is it safer to stick with version 3?