Possibility to use gzip, deflate or brotli compression - some servers unfortunately do not allow their use or make it very difficult,
http2 standard - if the server supports the http2 protocol, it's great,
redis server - in the case of large websites and online stores, it is worth checking whether your hosting plan includes the option to run a redis server,
PHP version and speed - make sure that the server supports the latest versions of the PHP interpreter, and that the interpreter works as quickly as possible,
fast database - the speed of performing operations on the database also plays a significant role, make sure it is as fast as possible,
LiteSpeed - if your server is based on LiteSpeed technology, you will have much of the optimization to worry about (such a server allows for compression, minification, file conversion to webp and many linkedIn database other functionalities that I described above).
The most commonly used elements that slow down page rendering
Have you ever wondered what really slows down a website the most? I have too, so here are the conclusions I have come to over the last few months while testing many websites.
photos - a very common problem is the quantity, quality and size of photos,
no cache - I also often encounter a situation where no caching module was used,
a large number of unnecessary scripts and plugins - this problem occurs most often on WordPress-based websites,
scripts from Google - few people would think that scripts from Google itself are the cause of drops in Google PageSpeed Insight (sometimes even by 40 points!),
links leading to pages that have been redirected using 301 redirects - it happens that many pages have been redirected to others but there are still links leading to them in the page code.
Page before and after optimization
Page before and after optimization.
When analyzing and optimizing the code of a website, a helpful tool can be the DevTools built into the Chrome browser. You can read about how to use this tool in the article: Website Analysis - DevTools .
Summary
I hope that the information I have presented in this article on how to create and optimize a website template will be helpful to you. If you apply at least some of the guidelines contained here, I guarantee that your website will be rated much better by Google itself and your users.
