Taking a long time to load a website can lead to the loss of users, deterioration of SEO performance, and a decrease in the profitability of an online business. In this article, we will analyze 5 main mistakes that slow down your website and tell you how to fix them.

Images take up the majority of the weight of many pages, making their unoptimized files a major cause of slowdown.

How to fix it:

• Use modern formats (for example, WebP instead of PNG or JPEG).
• Compress files using tools like TinyPNG or ImageOptim.
• Use “lazy loading” to delay the loading of images.

Many websites load large JavaScript and CSS files, which leads to long page rendering times.

How to fix it:

• Minimize JavaScript and CSS files.
• Combine files to reduce HTTP requests.
• Use “defer” and “async” for JavaScript to execute it after the content is loaded.

Storing files on the user’s side (caching) allows you to quickly load content when you reopen the site. The absence or incorrect configuration of caching slows down the site.

How to fix it:

• Add the Cache-Control and Expires HTTP heads for static resources.
• Use a CDN (e.g., Cloudflare or AWS CloudFront) to distribute the load.

A slow server or a heavy load on it can cause delays.

How to fix it:

• Check the hosting for the use of current technologies (for example, HTTP/2 or HTTP/3).
• Set up gzip or Brotli compression for transmitting