Do search engines index the ALT text descriptions

Question

Briefly state do search engines index the ALT text descriptions for JPEG and other image files?

Answer 1

Yes, most of the search engines, comprising Google, look at ALT tags whenever indexing Web page. For lots of sites, particularly image-heavy sites, the ALT text is one of few elements accessible for the search engines to index. When your page has no text at all on it, it can still obtain a high search engine placement by employing ALT text.