A report differs from a webpage because it is an official document that is often in the form of a lengthy PDF. The word "report" is usually in the title, and sometimes there is a document number associated with it. Here is an example of a report that can be found on the CDC website:
Centers for Disease Control and Prevention. (2009). Fourth national report on human exposure to environmental chemicals. https://www.cdc.gov/exposurereport/pdf/FourthReport.pdf
You might also find reports that are authored by individuals instead of organizations. In these cases, identify the publisher as part of the retrieval information. Here is an example:
Owen, A., & Murphy, B. (2020). Access across America: Auto 2018 (Report no. CTS 20-03).Center for Transportation Studies. http://cts.umn.edu/Publications/ResearchReports/reportdetail.html?id=2900
For more information on using reports in your scholarly papers, see APA 7, Section 10.04.