When leads come into your CRM from an un-named source, the CRM says the lead originated from your default lead source (often "Website"). This solution will help you set new lead sources so you can track more leads by their sources.
Log into the CRM. Once you are in, hover over your user in the top right and select Settings.
Now you can see the lead sources for your Brokerage on the left and for your user on the right. Enter the name of the lead source (e.g. "Zillow", "Seller-Lead-Gen", or "Buyer-Lead-Gen"). Then click the Add button to the right of the source.
Finally, click Save Settings on the top right.