Choosing a website to visit depends on the need and interest of the visitors. Despite having quality contents and being search engine optimized, your website might encounter a staggering bounce rate. Because the time it takes to load your site is something that matters to all visitors. So your site loading speed remarkably affects your website traffics. You have got a strong reason to be tense about. Hakuna matata! We'll introduce you to some effective CSS tools which will eventually speed up your website performance.


Why does speed matter?

As mentioned earlier, site loading speed can cause a huge bounce rate despite having what visitors need on your site. When it comes to smaller devices like mobile phones, people have comparatively less patience for a website to load. Even if your website is at the top of search engine results page (SERP), visitors will go for the next after facing snail page loading speed. That will affect the influx of visitors and conversion rate in the long run. A slow loading website will lead your visitors to your competitors as they appear it the search engine results page (SERP) too.


How to speed up your site?

A lot of things affect your website loading speed. The way you write CSS code, how your stylesheet gets loaded, number of HTTP requests, and heavy media files are the key reasons behind a slow loading website. Today we will talk about some CSS performance tools that will help you optimize your site CSS and make it speedier. Other things remain constant. Let’s get started.


TestMyCSS is an amazing tool that optimizes CSS delivery and performance by checking for redundancy, validation errors and the following:

It keeps your CSS simple

Tests and weighs the complexity of your CSS document

TestMyCSS analyzes your CSS selectors by reducing complexity and optimizing for better performance

All these actions eventually speed up your website loading.


Stylelint is a modern CSS linter that helps you enforce consistent conventions and avoid errors in stylesheets. It is a versatile tool that can be used with PostCSS and others. Below is the list of some features it has:

  • Catches typos (invalid hex colors, duplicate selectors etc.)
  • Enforces best practices like keeping specificity low or disallowing vendor prefixes in your source code
  • Enforces code style conventions

CSS Triggers

CSS Triggers is an online resource that lets you know which CSS properties cause layout, paint and composite operations in which browsers. These are processes that all browsers perform while rendering a webpage.

  • It helps browser generate the geometry and position of each element
  • Resolves the pixels for each element into layers
  • Browser draws the layers on the screen.


The main job of CSS Nano is compressing your CSS. It takes your formatted CSS nicely and runs it through many different focused optimisations to ensure the most possible small final result for a production environment. 

  • It removes outdated vendor prefixes
  • Reduces CSS calc expressions
  • Converts color values to shorter equivalents
  • Normalizes whitespace and trailing semicolons
  • Removes overridden at-rules
  • Removes unused definitions
  • Normalizes whitespace in filter functions


Just having a website with better look and awesome content isn’t enough. A fast loading website is far more likely to be successful than rest of its kind. These particular CSS tools will help you with all loading issues regarding CSS. Hope this article helps you speed up your website. Have a successful journey ahead.