Web Native.

Native ads are an incredibly effective way to promote products and content. This type of ad blends seamlessly with the surrounding content, in fact, it doesn’t look like a paid ad at all! This format is good for building audience engagement and visibility for advertisers, but also publishers.

File ratios:

1:1, 4:3, 6:5, 3:2, 1.91:1, minimum size: 600×500

File types:

JPG, GIF, PNG