Webometrics is a study that uses quantitative techniques to track and evaluate the impact of websites and online ideas. It measures the presence, openness, and excellence of university websites. Presence looks at total webpage volume. Openness examines files in research repositories. Excellence considers highly-cited papers. Visibility is also measured through inbound links from third parties to evaluate quality and usefulness. The Webometrics ranking aims to support open access and show institutional commitment to sharing knowledge online.