- Your page speed is low.
- Your bounce rate is high due to poor FID & TTI;
No, it’s not. But here’s the thing.
Now when this happens, your website will be unresponsive to user interactions. This then leads to poor user experience, decrease in rankings, traffic, and revenue as visitors will find your website unusable.
Let’s start by answering the bugging question:
- Unused dependencies.
- Redundant code.
These are codes that are present in the codebase or library but are not executed often — or are executed due to conditional logic.
One word — speed.
This increases the size of the website's resources, which slows down page load times and negatively impacts user experience.
- Code was out of date
- Changes in website requirements or functionalities
Some common examples include; animations, pop ups, after effects, infinite scrolling, social sharing buttons, slideshows, carousels, etc.
- PageSpeed Insights
- Chrome DevTools
- Visit PageSpeed Insights.
- Enter your web address and click on Analyse.
- Check your performance score (above 85 is good) and all other Core Web Vital Metrics.
- Visit your preferred website on Chrome.
- Right click and click on “Inspect.”
- Navigate to the top right corner and click on the “three dots” to access the “Run command” dropdown.
- Then type “Show Coverage” and click on it in the dropdown.
- Next, click on “record” to reload your website and capture the entire loading event.
- Visit GTMetrix
- Insert your preferred web address and click on “Test your site.”
- Below is what your results should look like if your website is well optimized.
- Scroll down and click on Waterfall and then click on JS.
1. Code splitting
Code splitting is a technique that helps you break up your code into smaller bits, chunks, or components which can be loaded on demand or in parallel.
- Google Closure Compiler
- Packer by Dean Edwards
- YUI Compressor
- JS Min
- Microsoft Ajax Minifier
Using Async Attribute
The async attribute tells the browser to continue parsing the HTML while the script downloads in the background. Once the script is downloaded, the browser halts the HTML parsing and executes the script.
💡Pro Tip → Use the async attribute to only load scripts that contribute to the immediate functioning of your website.
Using Defer Attribute
However, this can make the website unresponsive to the user’s input for the first few seconds.
💡Pro Tip → Defer all scripts that are below the fold or that are non-critical to the website’s performance.
With this feature on your website, you can prioritize the loading of essential elements, such as content that is above the fold or often in the user’s viewport. For instance, your logo animation only loads when a user scrolls to a particular section of your website.
On the flip side, while implementing lazy loading is a good practice that can help improve your website performance, it’s important to also consider its effect on user experience. Sometimes, when you lazy load elements, users might not be able to perform some actions on your website until it fully loads. This causes a slow input delay — or otherwise known as First Input Delay (FID).
💡 Side Note → First Input Delay (FID) is a Core Web Vital user-centric metric that measures the time from when a user first interacts with a website (i.e., tap on a button, or click on a link) to the time when the browser is able to respond to that interaction.
5. Use a webpack
Here’s how a webpack works:
Most of our recommended solutions help you mitigate the impact of third-party tags on your website. However, they give you little to no control of your caching process and sometimes might take long for you to start seeing its impact.
Edgemesh Script Loader gives you control over the script loading process on your website.
What is Edgemesh Script Loader?
The Edgemesh script loader allows you to specify when specific scripts should be loaded in the page’s lifecycle. Here’s how it works.
- Before interactive: This loads the given script before the page becomes interactive. This setting is appropriate for scripts that are required to render the page but shouldn't block parsing of the DOM.
<script type="edgemesh/beforeInteractive" src="https://foo.com/script.js"></script>
- After Interactive: This loads the given script after the page has become interactive. This setting is useful when you want a script to load after the page can be interacted with by the user. Use this setting for important scripts that are not required to load the page.
<script type="edgemesh/afterInteractive" src="https://foo.com/script.js"></script>
💡Pro Tip → If you are an Edgemesh Server customer, you can use the attribute data-em-load instead of modifying the type directly. Since the Edgemesh Client is dynamically injected, this will ensure that your scripts still load on your backend site.
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