15-20 images on a page / Alt Tag them or not with the keyword phrase?

[INCart]

I have a site that easily has 15-20 images per product page, giving the users ideas of what they can do with the product design. All of them have an alt tag with the keyword phrase in it. There is also an H1, H2, sometimes an H3, body copy with the keyword phrase 1-3 times, bold when it seems like a good time to emphasize it. Just in the images alone, we've exceeded the recommended 15 keyword phrases on a page. Moz On Page Grader says the following:

Avoid Keyword Stuffing in Document

We've seen evidence that excessive use of keywords can negatively impact rankings and thus suggest moderation.

Recommendation: Remove instances of the targeted keyword(s) from the document text of this page to bring it below 15

What's the recommendation for the image alt tags? We'd like the images to show up in Google Images, so they should have the tag, right? What's the right way to handle this for SEO purposes? Someone's suggested naming 1/2 of the images one keyword phrase, and the other 1/2 an altogether different one, not searched nearly as often as the primary keyword phrase.

[MoosaHemani]

If I would be at your places I would have played natural. Instead of adding keywords to all the images, I would have randomly added Alt tags to images and tags would define images and not keywords!

I will recommend using the same idea when building content. Just do not consider about keyword percentage in the document and make it as useful for reader as possible and you will see rankings as well as conversion ratio will increase.

[stever999]

Hi,

Personally I would never tag all of the images with the same keyword for the "stuffing" reasons you mention. Ideally you would want each image to use a different keyword, all of which are closely relate to the product. If this isn't possible try using at least 3-4 different keywords for the images.

Hope this helps.

Steve