DESKTOP

Total size 1920x972 px

Safearea centered vertically 1580x450 px (170 px to top)

Max weight 500kb

File format JPG

MOBILE

Total size 1080x1920 px

Safearea centered vertically 1000x850 px (220 px to top)

Max weight 300kb

File format JPG

test link (open in icognito mode)