Magento - Code Optimization

The code influences the speed of your site. The testing tool helps to gain insight into the specific process.
Code Optimization contains following points:

• Removal of unused or unnecessary code processes.
• To optimize Magento performance, JavaScript and CSS files need to be compressed and aggregated.
• Conformance of all site images to optimal web image sizes.
• Identification of bottlenecks(process that causes the entire process to slow down or stop) processes in both front-end and back-end.