Check every image have Alt attribute
SEO Tips for Image Alt Attribute
| Img (Image) Tags in HTML pages can contain an Alt (Alternative) attribute. This atrribute use to describe the content of the image.|
As the search engines cannot recognize the content of images they use this description for their image searchers. infact they search between Alt attributes of images not in content of images.
So this is very important attribute for images.
Found Image tag without alt attribute
|It is not a good idea to use some keywords instead of sentence for Alt attribute. It's better to use one or two clear sentence for Img Alt Attribute.|
Alt Attribute contain ',' character if the alt is comma seprated keywords change it.