In order to optimize your website for a search engine, you should consider multiple SEO criteria when writing SEO texts. When integrating images and graphics, there are basic rules to follow in order to guarantee that your content can be found using image search. Search engines cannot carry out analyses themselves, so the crawler conveys information to them about what the image entails.
If you plan on ranking in the image search, then you need to add the relevant keywords in the file name as well as in the image caption. Most search engines rate larger images favorably than smaller ones, so make sure they are of high resolution. In order to inform a search engine of an image’s content, you should add relevant keywords into the image’s HTML code. This applies to the title (title tag) as well as the description (alt tag) of the image. The title tag appears when the mouse is dragged over the image. The alt tag, however, delivers the browser a short description, which takes the place of the image if it cannot be shown for technical reasons.