You can check if an image has alt text by turning on a screen-reader and selecting the picture to hear how it's described. You can also inspect the HTML of the image ...
Google's John Mueller said that having different languages on the same page "makes it harder to determine which language is the primary language of a page." You don't want to make it harder for Google ...
Readers of a certain age may remember early e-books that had black rectangles in place of the images. (They were rendered as such because publishers had only obtained print rights to the images.) That ...