We've tested this exact camera against a real CR3 sample file and independently verified the shutter count against exiftool — this one is confirmed working.

Shutter count for the Canon EOS R6 Mark II is read from CTMD metadata track, MakerNote tag 0x000D in the camera's CR3 file metadata — entirely in your browser, the file is never uploaded anywhere.

Check your EOS R6 Mark II shutter count →