The optimal dimensions for Podium images are 2000px x 500px.
The optimal dimensions for the smaller podium (mini-podium) is 1500px x 527px.
Please encode these images as jpegs with progressive loading.
All profile images should be at least 400px x 600px
Alternate News Feed Image
The optimal dimensions for the Alternate News Feed Images are 768px x 421px
Image File Formats / Compression
Image file sizes should be as compressed as possible while retaining preferred quality.
Image file format is preferably JPEG with PROGRESSIVE loading set.