If your broadband service provider is facilitating you with a speed of 100Mbps, then it is a great speed for your home as you can easily stream Netflix, download movies and play games online as well. But, if you need better upload speeds since you upload videos on YouTube but face speed issues while uploading posts on social media platforms, then maybe your upload speed must have gone low. In such a case, instead of reaching your internet service provider, you can take an Upload Speed Test.
testmyinternetspeed.org/upload-speed-test.html