"The anchor text, link label or link text is the visible, clickable text in a hyperlink".
Anchor text, sometimes referred to as clickable text, is helpful for boosting a website's search engine ranking.
Instead of merely linking to pages within your website or outside websites using the URL or the words "click here", use relevant keyword phrases.
For example: a person who has a search engine optimization website might do well to use "SEO services" rather than something like "click here now".