Therefore , the alternative text should be as descriptive as possible.
However, alternative text isn’t always necessary. For example, if an image only serves a decorative purpose, there’s no reason to tell readers or Google its content.
Text images and alternative text
If you’re not sure whether images with a lot of text need alternative text, you can follow this alternative decision tree from the World Wide Web Consortium .
An alternative text decision tree with recommendations on how to use alternative text in images with text
To summarize:
If the text in the image also exists near the azerbaijan mobile database image, or the image has a decorative purpose, then you don't have to use alternative text.
If the text in the image is not otherwise present, or if it is an image with a specific purpose logo, icon, etc., you should always include descriptive alternative text.
Alternative text and keywords
Image alternative text is one of the areas Google focuses on when trying to glean what a page is about.
Does this mean you should put your focus keyword in the alt attribute at all costs?
Of course not.
Despite common practice, alt text is not the place to engage in unnatural keyword stuffing in order to "boost" rankings . Use keywords only if they make sense to the user.