hello guys again back around here with a little question i have been watching around some adult sites with the same niche than mine and notice in their alt tag of every picture in this case one galerie they use the same keyword at all so my question is google will consider this duplicate content? thought i know is better have a variation of key in every one so it’s more rich text for sam google just wanted to know whats going with it hope hear from you all thanks.
Not sure what it counts for any more and never a good idea to design it based on SEO or what Google thinks. Alt tags have traditionally been a way to identify images if they don’t load or if you’re browsing without images switched on. They should be short and describe what the image is about or featuring. Don’t over do it, and don’t stuff it with too many keywords.
Alt tags still contribute to your site’s overall relevance, so I would not overlook them while posting. But like xbryan said, I would not overdo it for the sake of SEO. Use them the way they were originally meant to me used. So you should use different alt tags for each picture, unless these pictures are pretty the same.