Image SEO covers all measures that make images more understandable for search engines, image search and machine systems. This includes alt text, descriptive file names and suitable context.Open glossary entry → ensures that visual content can be interpreted not only by people but also by search engines and AI systems. Since machines largely interpret images through text, descriptive textual information is crucial.

The most important building blocks include:

  • Alt text is a text alternative for an image, stored in the alt attribute of the img element, describing the content or function of the image.Open glossary entry → that describes an image's content or function in the alt attribute,
  • descriptive file names instead of generic names like IMG_1234.jpg,
  • surrounding context such as captions and relevant body text,
  • for data graphics, a textual or tabular explanation.

Image Search Engine Optimization (SEO) covers all measures that help a website become more visible in unpaid (organic) search results.Open glossary entry → is not a ranking hack. Good image descriptions mainly improve clarity, accessibility and the chances in Google Images. More traffic is possible but also depends on image quality, demand, competition and Indexing is the step in which a search engine processes crawled content and decides whether a URL is added to the search index. Only indexed pages can appear in search results.Open glossary entry →.