Contextual backlinks are those links that are built from existing content on the website landing page or web page. These backlinks are very helpful to build your keyword ranking higher on all search engines like google, yahoo, bing & more, also increases the domain trust online.

Contextual backlinks are links to external websites that are placed within the main or primary content of a web page. Contextual backlinks come naturally within content. They are not links that are placed within the navigation, sidebars, widgets, footer or ads.

Contextual backlinks are essentially hyperlinks to another website that are located within a paragraph of text, hence they are contextual, with text surrounding the link itself.

Google seems to respect contextual backlinks more than other forms of backlinks. However, this really depends on the website and page in which this contextual backlink is being created.