the way to make your website faster than before ,you should know some tips.

you know your website contain css,js,html,image and ect.

some code doesn’t use so you should reduce it.

for example as image,pdf or video ,you should compress it before add it to your website.

Note: please check your web server too.

you can test speed website with some website as below:

GTmetrix is free to use for our guest and basic accounts, and we have a ton of resources available to point you in the right direction to get your website performing faster.

Get your PageSpeed score and use PageSpeed suggestions to make your web site faster through our online tool.

Run the open source PageSpeed Modules on your Apache or Nginx server to automatically rewrite and optimize resources on your web site.

Pingdom helps you analyze your website load speed.

The test is designed to help make your site faster by identifying what about a webpage is fast, slow, too big, and so on.

Pingdom have tried to make it useful both for experts and novices alike.
In short, we wanted it to be an easy-to-use tool built to help webmasters and web developers everywhere optimize their website performance.