Find the images of a page with a missing or empty alt text.
The image alt text checker lists every <img> on a page with its alt text, and flags the images that have none. It also spots alt texts that are too long or look like a file name, and images without width and height attributes.
Alt text describes an image to people who can't see it and to search engines. It's required for accessibility (WCAG) and helps your images rank in Google Images.
Thumbnails with their alt text, size and status.
Tells missing alt attributes from empty, decorative ones.
Too long, file-name and "image of" alt texts.
Finds images without width and height.
A short, specific description of what the image shows and why it's there, usually under 125 characters.
For purely decorative images: alt="" tells screen readers to skip them.
Yes, it's the main way Google understands an image and a factor for Google Images rankings.