ahh! That's how they are getting the data lol Currently it is not supporting N-400, that's weird
CaseStatusExt provides reports and tools to analyze and visualize USCIS case status. First, the daily updates report gives statistics of USCIS daily updates of different forms across different service centers. Additionally, it shows weekly trend comparing to last week. Second the status report provides detailed information on case status within each receipt block. It currently supports 6 types of forms: I-485, I-765, I-140, I-130, I-131 and I-751. Check it out at Link. Finally the approval report provides more details into the approval activity of each service center, check it out at Approvals. Additional we have CaseTool that provides the latest case status and visualization of your specific case