Can I measure my users' internet speed in my react web app?

Question

I built a small react web app and I'm noticing that some users are dropping off constantly.

I know that fast.com appears to measure web speed by having the client download a file and then upload it.

Would if be feasible to do something like that for my react web app?

Answer 1

Yes. You can certainly do that. but instead of downloading and uploading a file which will require some sort of prompt.

What you can do is load an image <Image source={someURL}/> with a known size perhaps from a url, and display to the user. Your application logo can work. it will not be 100% accurate but it will get you what you want and start a timer before loading and finish the timer after it has been loaded you can use react hooks or didComponentMount depending on a functional component or a class with measuring the time.

const CalculateTime = (time) => {
 const mins = Math.floor(time/60);
 const secs = time-mins*60;
 //you can calculate milliseconds etc...
 return (mins, secs);
}

using react-hooks in your main function

export default function App(){

 [isActive, startActiviating] = useState(false);

ofcourse call your function from your return () and calculate the time.