The optimal logo size for a web page is 250 x 100 pixels.
Images for Instagram should ideally be 1080 x 566 pixels for landscape images, 1080 x 1350 pixels for portrait images.
The size for LinkedIn post images is 1200 x 627 pixels, while the optimal size for a LinkedIn cover image is 1128 x 191 pixels.
My Business cover photo sizes are 1024 x 576 pixels.
Tweeted images should be a minimum of 440 x 220 pixels and a maximum of 1024 x 512 pixels.
Youtube images should ideally be 2560 x 1440 pixels, while the thumbnail images should be 1280 x 720 pixels.
The size of Facebook cover images is 851 x 315 pixels, while shared link images should be 1200 x 630 pixels.
Stories images for Facebook, Instagram, Twitter, and LinkedIn should be 1080 x 1920 pixels.