URL stands for Persistent Uniform Resource Locator. PURLs are direct links to specific e-resources (articles, books, book chapters, databases, etc.). They are also called stable, durable or persistent links because they work consistently. Many links found in the address bar when viewing a resource are not dependable (especially those with the word "sessionid" as part of the link.)
In addition to locating the best link for a resource, you can also create a PURL using a DOI (Digital Object Identifier) for the e-resource if one is available.
PURLs should be used when adding articles to Canvas. By adding the LHL proxy prefix in front of the PURL, the resource will be accessible both on and off campus.
To create a PURL using the URL:
To create a PURL using the DOI: