In an on-page SEO strategy , an article should be optimized in the following way:
only one H1 copywritten for each article to attract the cell phone number list attention of the Internet user, its length should not exceed 70 characters.
follow a certain logic in prioritization to improve user experience.
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Optimizing images is part of the best practices in on-page SEO. This consists of inserting keywords naturally into the tag of an image in HTML language . Google's algorithm does not read images.
The alt text attribute makes the description for its SEO. This is the description that people with vision problems hear in their screen reader. The alt text contains between 3 to 5 carefully chosen words. It is possible to include one or two keywords in this description for optimization.

On the other hand, the title attribute, its display is similar to that of a pop-up window. It is not displayed when the image is not loaded. Therefore, this attribute does not count for SEO.
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The ideal size of images should not exceed 200 KB . A larger size may penalize the loading speed of the pages.