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If you run an online store, image optimization is an art that
you should master, here is a glimpse into 5 “must-know’’
image SEO tips :

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1) Choose the right file type for your image :
-PINGs for graphics ;
-GIFs for images with less colors ;
-JPEGs for higher quality pictures, and don’t forger to save
JPEGs in Photoshop at ideally 60 % resolution, this will keep
the file size down and help with the page load time.

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2) Use keywords in the file name
-Just like keywords in post urls, keyword rich words
in image is important, this will help search engines
to determine relevancy.

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3) Create descriptive alt text
-Alt text / tags are another way to help search engines
determine what your image is about.

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4) Use the right anchor text
-Your anchor text can play an important role in how
your image is ranked for keywords, if you decide to link
image with text, use descreptive anchor text that
describes the image.

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5) Match the image with the content
-Content surrounding your image must be related to all
what you have optimized before ( image url, alt tags …)
it helps search engines to confirm that your image is
relevant and you’re not spamming.