This page tests a product photo against the AliExpress rules we could find, using the real pixels of your file. We could not confirm the figures on an official AliExpress page, so treat them as guidance and check your seller account.
Rules a pixel test cannot judge, such as what may appear in the photo, are listed beside the report.
What else to know about AliExpress photos
Seller guidance asks for a white or solid background at 800 x 800 pixels or above.
Square is the safe shape; some guidance allows up to 1:1.3.
Avoid borders, watermarks and picture collages.
We could not confirm a file limit, so 5 MB here is a cautious ceiling.