Anchor text is the text that is used in a hyperlink. When a user clicks on the anchor text, they are taken to the webpage that the anchor text is linked to. Anchor text can be used to improve search engine optimization (SEO) by providing context about the content that is linked to.

For example, if a webpage about “dog training” contains a link to another webpage about “how to potty train a dog,” using the anchor text “potty training tips” can give context to both search engines and users about the content of the linked webpage. This can help search engines understand the relevance of the linked webpage and improve the ranking of both the linking webpage and the linked webpage in search results.