Posted by & Posted in: Performance, SEO Tips.

In the web design world, the term ‘render’ means loading. In other words, if you get a message that you have a render blocking JavaScript, this simply means that you have a JavaScript code that is preventing your webpage from loading.

The leading search engine Google recommends that any web page should not have a JavaScript that inhibits or interferes with the loading of that page’s above the fold content. Above the fold content refers to what website users initially see on their screen when they visit your website. Remember, the screen in this case may be a desktop, an iPad, or even a phone.

Whenever you want to increase the speed of your website, which essentially means increasing the rendering time of the website, it is important that you start by checking whether your website pages have such inhibitive JavaScript. Our awesome tool called Paradox SEO that can actually help (more of that later).

Why Is It Important To Remove Render-Blocking JavaScript?

Even if your concern is not for the website visitors who have slow connections, you should at least care that you may lose your rankings on Google if you have a slow loading website. By not optimizing your website for this, you risk being penalized by Google on your ranking. This is especially so if Google notices that your website does not load well on some devices, especially the mobile ones. If this is the case, it will avoid including you in the search results simply because this leading search engine does not like to see its users visiting websites that take so long to load their content.

How Can You Identify Render-Blocking JavaScript

It is of utter importance to know what your webpage is loading. You can do this through a number of ways. Using the tool mentioned earlier in this post is the most ideal. Paradox SEO is an SEO platform that allows you to automate SEO testing. It is a very simple and easy to use SEO platform that is incredibly powerful. You can use it to identify problems with your web pages.

You may also use Google’s PageSpeed Insights tool. This tool will pinpoint for you the exact files on your web page that are blocking it from loading. Knowing the exact files that are working against your website is helpful in that you can now know exactly what you need to fix.

The bottom line is that you should remove any render-blocking JavaScript in the above-the-fold portion of your page. You should, at the very least, avoid or minimize the use of such blocking scripts, and more so the external scripts that have to be fetched before they can be executed. Doing so improves your site performance, keeps your website visitors happy and engaged and keeps the search engines happy. The results of this are obvious in that you end up landing on that top position that you have been seeking on the SERPS.