What Does ALT Tag Do Except Giving You SEO Values?
As you know, using Alt tag gives you some extra mileage for search engines to find your image. It gives you extra option to put chosen words so that when somebody searches search engines like Google, they can match the keywords with your Alt tag and show him the photo. So most of you will stuff Alt tags with keywords. But be careful, as excessive stuffing can get you caught in spam filters of different search engines.
But why was this Alt tag invented? Have you ever thought of this question? Surely not to give you some SEO value
Alt tag is basically the text equivalent of your image. This doesn’t necessarily mean a decorated description or title. Ask yourself, what would you have put if you didn’t have the image in the first place? Does this text serves the purpose to share the basic information with the user as the image itself? Then you are using Alt tag with its true purpose
So if the browser is unable to display the image or the image is not available, the Alt tag text will be shown in the place of your picture. So your user will have at least some kind of idea what you were trying to express using the image.
I am pretty sure, you would still continue to make Alt tags keyword-centric. And there is no reason why you should not. But keep in mind its true purpose and your user
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