Hi guys, sorry a silly noob questions. Regarding wordpress and Alt images tags! I just recently noticed that atleast 90% of my images don't show the keyword in the alt image tag when I hover over it! some do some don't. I click on edit image and it shows that I have an alt tag but not selected in the advanced options. So its easily changed, just need to edit all the images. Anyway, my question is.... does that effect any seo ranking factors in image search on google? i.e. has an alt tag but not showing when hovered over. This is for an image based site. I used to get 2500 - 3000 unique visits a day, and within the last year its dwindled down to 700 - 800 on a good day. Trying to work out what went wrong.