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.



Verbter points for speed

General tips


  1. What is JavaScript? – Learn web development | MDN. (2024, Jan. 24). MDN Web Docs.
  2. Search Engine Watch. (2019, Dec. 17). How JavaScript impacts page loading speed on mobile.
  3. How to Optimize JavaScript Delivery to Speed Up Your Site. (s.d.).
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Ralf van Veen

Senior SEO-specialist
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This article was originally published on 19 April 2024. The last update of this article was on 19 April 2024. The content of this page was written and approved by Ralf van Veen. Learn more about the creation of my articles in my editorial guidelines.