Sources in Segment are created for each website you want to track. While not required to have a single Source for each server, site or app, Segment recommendeds creating a Source for each unique source of data.
Sources belong to a workspace and the URL will look something like this:
You can create new sources using the button in the workspace view. Each source you create will have a write key which is used to send data to that source. For example, to load
If you have any questions, or see anywhere we can improve our documentation, please let us know!