External Link is a type of hyperlink on a webpage to another page or resource, such as an image or document, on the different website or domain. Hyperlinks are considered "external" if their target or destination links to any other website. External links are used to the show the authority and your trust towards highly valuable resources.
By using External Links Tools, you can get detailed information about all external links present on your website. This is very useful in adding required external link, count or to reduce the burden on your website (if excessively used).