[Nile Hadwards]

An absolute link points to the exact location of a Web file or document. It specifies the access protocol for the file, the server and the directory where it is located and also the document name. It doesn't impact SEO in a great way- just perhaps the page’s download time. Other than that, if it is necessary to use for your site, you can use it.

[John23]

As per my knowledge, A link is an absolute link if the URL and file name can be found from anywhere on the Web, not just from a single Web site. Absolute link is the exact path of the web file or documents.