Web site optimization for the first time the speed of page loading methods and ideas.

The site was redeveloped and deployed to the test network for the first time. Access was very slow. It took about 40 seconds to load the first time.

Of course, there are some useless ones. MAP files can be deleted, images can be compressed online, code can be compressed, avoid repeated requests to the interface, use CDN acceleration, use caching and lazy loading. Load and delete duplicate files and unused files as needed.