Remove duplicate modules from JavaScript bundles
Senior SEO-specialist
Making a website faster? There are numerous options for this, including removing duplicate modules from JavaScript bundles. What is Removing duplicate modules from JavaScript bundles and how exactly does it work? Here we explain this to you.
What is Removing duplicate modules from JavaScript bundles?
Removing duplicate modules from JavaScript bundles is advice you may get when analyzing your Web site. Google Lighthouse is one of the programs that gives you this advice. It makes your website load faster.
The operation of JavaScript modules
JavaScript bundles on Web pages are made up of bits of code and files from popular libraries. This potentially causes a page to copy duplicate modules from multiple sources.
Removing duplicate modules in JavaScript bundles ensures that you are not sending unnecessary JavaScript code to visitors when they load the Web site. The lower the payload delivered, the faster the browser loads a page. Thus, removing duplicate modules may provide faster loading times.
The impact of Removing duplicate modules from JavaScript bundles on SEO
Removing duplicate modules from JavaScript bundles potentially impacts the SEO of a website or page. This ensures that the browser loads your website faster. This is attractive to the visitor, but at least as attractive to the search engine. A search engine such as Google pays more and more attention to the speed of a page: therefore, this modification may provide a higher position in search results. On the other hand, it is also important to note that this is not the only way to improve website speed.
My advice
Speeding up a Web site is possible in several ways. The advice Remove duplicate modules from JavaScript bundles is one of many you can follow. We recommend having a comprehensive website analysis done, for example, at Lighthouse or Google PageSpeed Insights. This will give you a clear picture of possible bottlenecks to the website that deserve your attention.
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
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
- Reduce JavaScript
- 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
- 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
Frequently Asked Questions
What does “Remove Duplicate Modules From Javascript Bundles” mean?
When analyzing your website using a tool such as Google Lighthouse, for example, you get all kinds of advice on how to improve your site. One may be the advice “Remove duplicate modules from JavaScript bundles.” It is advisable to follow up as this will result in your site loading faster.
What is the impact of Removing Duplicate Modules From Javascript Bundles on SEO?
Optimizing your site and making it faster ensures satisfied users. Google also looks at a website’s loading speed. The better it is, the higher its ranking in search results. This, in turn, will lead to more traffic to your site and improve your results.
