Set Up The SEO Alt Tags App
Improving your SEO (Search Engine Optimization) is not always an easy task, as the algorithms behind web crawlers like Google are very sophisticated. Still, there are ways to help improve your SEO ranking, and adding Alt-tags to your images is one of them.
Shopify even released a tutorial on this topic which you can find here: Adding keywords for SEO to your Shopify store.
With the SEO Alt-Tags app, you will be able to add alt-tags to all of your product images automatically. You can add helpful tags like your store's name, plus the product's title or vendor, so that it contains the most relevant information and helps get the images indexed easier.
Once you're done choosing the information added to the alt-tags, all you need to do is click the Update Products button and let the app add the alt-tags. This process can take up to a few minutes, depending on how many products you have.
Please keep in mind that if you're adding new products to your Shopify store, the Alt-tags will not need to be manually updated. As long as the app is enabled, the tags will be automatically added to your new products!
Adding alt-tags for stores with more than 3000 products is unavailable, as the algorithm behind the app adds the custom alt-tags to every photo of every product, and it will not be able to do so for more than 3000 products successfully.