Web Performance
Code Splitting
Lazy Loading

How to Speed Up Your Web App

3 min
Cozy Ventures
07.03.2024

Ever found yourself waiting forever for a website to load and ended up just bailing? You're definitely not alone. With how competitive things are nowadays, having a quick-loading web app isn't just a bonus—it's absolutely crucial. If your web app drags its feet loading, you're kissing goodbye to users and revenue faster than you can say "page timeout".

But don't sweat it! There's plenty you can do to get your web app sprinting. Let's break down some straightforward, impactful ways to boost your web app's performance, making sure it loads swiftly and keeps your users happy.


Start With a Health Check

First thing to do is figure out where you stand. Tools like Google's PageSpeed Insights or Lighthouse can give you the lowdown on your web app's current speed and what's slowing it down. You'll see what's in shape and what’s in need of some improvement.


Lazy Loading: The Art of Procrastination

Lazy loading is your web app deciding to only load the stuff users are actually looking at, instead of everything all at once. Think of it like only cleaning the parts of your house guests will see. It saves time and effort and keeps your web app zippy. This technique is super for heavy pages full of images and videos that don't need to be displayed right away.


Code Splitting: Divide and Conquer

Imagine if you had to download an entire library just to read a single book. That's what it's like when a user has to download your whole JavaScript bundle for just a part of your app. Code splitting chops up your code into bite-sized pieces that are only served when needed. Users get a faster load time because they're not waiting on the entire application to start engaging with it.


Use CDNs: The Global Speed Boost

Content Delivery Networks (CDNs) are like having speedy delivery trucks stationed all over the globe, ensuring your web app's content gets to your users fast, no matter where they are. By storing copies of your app's data on servers around the world, CDNs reduce the distance data travels, making your app faster and more reliable for everyone.


Optimize Images and Fonts

Images can be the heavyweight champion of slowing down your web app. Opt for modern formats like WebP that offer high-quality visuals at smaller file sizes. Also, think about responsive images that adjust to screen sizes, ensuring that you're not sending huge pictures to a tiny phone screen. Fonts can also bog down your web app. Stick to modern, efficient font formats and only load the characters you need.


Final Say

Boosting your web app's performance is about making smart, efficient choices. Regularly check your app's speed, be strategic about what you load and when, and keep everything as lean as possible. Your users will thank you with their loyalty and engagement, and your web app will stand out in the crowded digital space. So, roll up your sleeves and start optimizing—your faster, smoother web app awaits!

And we’re here to help in case you need any assistance.

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