Recently, the number of users to surf the web on mobile phones and tablets has been on the rise. Simultaneously, web pages have been getting bigger in terms of bandwidth and loaded assets. While viewing a website on mobile phones and tablets, the issue of network overhead and mobile latency crop up. This is why fast loading web pages are becoming important. You should also know some MOST IMPORTANT AND EFFECTIVE ON PAGE SEO TECHNIQUES FOR SEO SPECIALISTS to increase website ranking. Image optimization, content caching, low latency web hosting, etc. can speed up the website but even then these are not fast enough. Optimizing the critical rendering path is a great way to optimize page speed. This post talks about the critical rendering path and how to optimize it.

What is critical rendering path?

What is the Critical Rendering Path?

The Critical Rendering Path is the sequence of steps that the browser takes to receive HTML, CSS and JavaScript bytes. It refers to the sequence which the browser follows to render the view of the webpage. It is important to keep the CRP as short as possible. This ensures an optimal page speed. It is a complex procedure and thus, requires experience in web development. So, if you are not a developer, it’s better to hire a professional.

How CRP works?

The steps which are involved in the initial rendering of a webpage include constructing the object model, constructing the layout, and adding interactivity. Developers usually tweak these steps to load the initial view quicker. The importance of critical rendering path is that it allows the webpages to load more quickly. This results in better user experience, conversions and lesser bounce rates. While ranking the web pages, page loading speed is one of the elements that search engines observe and thus, page loading speed is one of the TOP 7 TECHNICAL SEO PROBLEMS FACED BY MOST PROFESSIONALS.

How to set up a perfect critical rendering path?

Following are the steps to set up a perfect critical rendering path:

  •  Analysis: Analyse the website and determine the resources needed to render the initial view.
  • Removal: Remove elements which are not necessarily required.
  • Compression: Optimize the required resources by compressing them to reduce the page size.
  • First data packet: Add most of the optimized HTML and CSS codes that are needed to render the initial view in the first data packet.

No paperbacks at all

Fundamental steps for optimizing CRP

Following are the fundamental steps for optimizing CRP:

  • Minimize render-blocking CSS: CSS blocks rendering and JS execution. To minimize blocking of rendering by CSS, ensure that the link tags of CSS are in the head of the HTML code. You can also split CSS into several files and let the browser load them conditionally. Some tools like critical path, CSS generator and Critical CSS can help you to do this. You may also like to visit & check our blog on LOG FILE ANALYSIS FOR BETTER SEARCH ENGINE OPTIMIZATION in order to improve technical and on-page search engine optimization.
  • Minimise number of critical resources: Critical resources are those which block the initial rendering of the page. Lesser critical resources mean that the browser does not have to work a lot to display the contents. It is also a good idea to minify, compress and cache all the critical assets. You can also minimize critical resources by eliminating them, making them load later, or deferring their download.

Setting up and optimizing the critical rendering path makes the web page load almost immediately. Also, the importance of critical rendering path is that it improves engagement, retention and conversions. To be able to optimize the critical rendering path, it is important to know how the browser works. If you know what content is needed to render the initial view, you can easily use this to optimize your website. You can go through our blog on BOOST MOBILE SEO WITH AMP (ACCELERATED MOBILE PAGES) and know how website owners are implementing AMP to make content load faster. 



Uni Square Concepts is an advertising agency located in New Delhi, India. By initiating The Uni Square Blog, we aim to provide a comprehensive portal where readers can educate themselves about the various aspects of advertising and marketing. The articles and blogs are written by our professional team of content writers, under the guidance of senior leaders of Uni Square Concepts including its CEO, Uday Sonthalia.