Peer review is the evaluation of work by one or more people of similar competence to the producers of the work It constitutes a form of self-regulation by qualified members of a profession within the relevant field. Peer review methods are employed to maintain standards of quality, improve performance, and provide credibility. In academia peer review is often used to determine an academic paper’s suitability for publication.

However, in this instance, it refers to the relative popularity or authority of the website in question by gaining citations, links or mentions from other authority websites that have contextual relevance to the subject matter.