First of all download The app named 'speed test' by ookla from the App Store
Open the app
Let it find the server thats best for you to test
Press begin Test
Wait for it to test your internet's Ping,Download and Upload speeds.
Compare all of your results.
You can also change the server if u want to.
Updated:New update for this app now brings new looks and better performance and bug fixes.
- Test ur internet speed
- Check ur bandwidth