Network latency can impact the performance of your application. If your application is hosted on Azure and you want to monitor the latency between the client and the Azure region, you can do so simply by navigating to the link Azure Speed Test
This gives you the latency between your browser and Azure blob storage hosted in each of the Azure Data Centers; something shown as follows –
and that’s why it is always advisable to have all your resources in the same region or near to your Azure region.
This can be a good indicator to see if network latency is a culprit in your performance issues. However, this can be navigated to get a generic idea of the information too e.g. if you are not sure which Azure region you should be selecting at the beginning of a project, you can get an idea of what all data centers are offering the least latency in reaching to them from your location.