The cumulative grouping of all links pointing to a particular website. A link profile can be used to determine a website’s power, trust, subject matter, and content. Link profiles are important at determining where a website ranks in google search results. If a website has a high number of links from websites that are not trusted, adult in nature, spammy or against guidelines, the link profile will have a negative effect on rankings. If a website has a high number of links from websites that are strong providers of content or reputable sources of information it will have a positive effect on rankings.
Source: HSMAI CHDM Study Guide