The alt attribute describes an image in words. This image has no alt attribute at all, so screen readers often read out the file name instead.
Blind and partially sighted visitors miss what the image shows. Google uses alt text to understand images and show them in Google Images.
Snaglist checks every image in the HTML of your pages and lists the ones without an alt attribute, with the page they are on.
Snaglist runs this check and 43 others on every page of your site, every week. 14 days free, no credit card needed.
Try free for 14 days