You may have done this yourself or maybe you just know of someone who did; stuffing keywords in an ALT tag for a picture. That’s no good. “Why?” you might ask. Well, because new research has basically concluded that the top three search engines don’t consider ALT tags anymore, or at least they give very little weight to them.
Now, instead of stuffing as many keywords as you can in ALT tags, you’re supposed to use that tag to actually describe the picture in which you are tagging.
“According to a Google engineer, what you should do it create an ALT tag that is relevant to the picture, so it gives the user a good experience, including the visually impaired. The ALT text is indexed, but it is down graded in the algorithm.”
“The American Disabilities Act (ADA) has strict guidelines as to what your site needs to contain in order to be ADA compliant. I guarantee you, they do not look favorably at ALT text that has been keyword stuffed.”