Reduce JavaScript

Making sure your website loads faster? You may then get the recommendation Reduce Javascript. What is Reduce Javascript and to what extent is it important for the loading speed of a website or page? You can read about that here!

What is Reduce Javascript?

Reduce JavaScript is a recommendation for modifying JavaScript in a Web site, making it possible to make the Web site faster. Reducing JavaScript means removing unnecessary characters from the source code.(1)

Reducing the importance of Javascript

It is very important today to have a fast website: a website with a slow loading speed is unattractive to visitors and to the search engines. Slow loading of a website has a number of possible causes. One option is that it is due to JavaScript files. When there are a lot of them, this may cause the speed to go down a lot. (2)

The recommendation Reduce Javascript is a tip to work on. Reducing Javascript makes it possible to speed up a website, thus getting more traffic and also ranking higher in the search engine.

The impact of Reduce Javascript on SEO

The impact of Reduce Javascript on SEO does exist to some extent. The modification of the source code ensures that a website requires less loading time. However, reducing the size of JavaScript does not directly ensure the best results: the loading time of a website also depends on other things. Reduce JavaScript may be an interesting solution that gives your website a push in the right direction, though. (3)

My advice

The recommendation Reduce Javascript is certainly welcome: it makes you aware of a possible solution to reduce the long loading speed. We recommend hiring an expert in this field: this will ensure a fast implementation and you will not have to delve into code and programming language even without the necessary technical knowledge.

The most complete book on website speed

I’ve written so much about speeding up websites and everything involved that I like to divide it into different sections; general, tools, speed improvement points and tips. Feel free to see and consult all the links below to learn more about tools and tips for speeding up your website.

General

• What is the website speed
• Website speed: The division between marketing and development
• The influence of SEO on UX
• The influence of web design on SEO
• SPAs and SEO
• What are the Google Core Web Vitals?

Tools

• Autoptimize
• Pagespeed.Compare
• W3 Total Cache
• Tools Pingdom
• Google Pagespeed Insights
• GTMetrix

Verbter points for speed

• First Contentful Paint (FCP)
• Time To First Byte (TTFB).
• Time To Interactive (TTI).
• Image for Largest view with content (LCP) preloaded
• Enable text compression
• Reduce the CSS
• Total Blocking Time (TBT).
• Speed Index
• Largest Contentful Paint
• Avoid an overly large DOM
• Delete unused CSS
• Remove unused JavaScript
• Deliver images in modern layouts
• Connect in advance to required origins
• Preventing obsolete JavaScript from being delivered to modern browsers
• Use an efficient cache policy for static items
• Remove duplicate modules from JavaScript
• Avoid multiple redirects
• Encode images efficiently
• Use lazy loading
• Load important requests in advance

General tips

• Tips for quickly loading a video
• Using Edge SEO for a faster website
• Installing a Content Delivery Network for SEO
• Optimizing images for SEO
• The influence of hosting on SEO