Verify real WEB-DL by checking mediainfo for Format profile : High@L4 or L4.1 (H.264) and audio being E-AC-3 (not re-encoded AAC).
(e.g., The.Boys.S01E01.1080p.WEB-DL.DDP5.1.H.264-NTb ). the boys s01 1080p web-dl
For , a useful piece of information is: