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Definition of a PURL: A PURL (a persistent uniform resource locator) is an intermediate WWW address, which directs users automatically to a specific Web address for a given resource.  Once set up, a PURL never needs to be updated, though the URL to which it points may change.

Contact: Sally Lockwood

Unit:  E-Resources

Date last reviewed:   

Date of next review: June 2020


The following are general guidelines for determining if a PURL should be created for an electronic resource. If you are unsure about a particular resource, or have a suggestion, please contact Peter Martinez or Sally Lockwood.

We will create PURLs for:

  • Local digital collections (such as DigitalCommons@ILR or MediaSpace) at the collection level & item level.
  • Resources approved by the Database Review Committee (DRC) for listing in Databases.
  • Other resources at the discretion of the E-Resources unit.
  • Please contact e-resources@cornell.edu to request or update a PURL.

We will not create PURLs for:

  • Resources that already have persistent links. These include:
    • Previously assigned PURLS. Generally, these will be US government documents with GPO PURLS.
    • Links using the Handle System. These start with "hdl.handle.net".
    • DOI links. These start with "dx.doi.org".
  • Resources loaded from Serials Solutions. These have a 948 $hSerialSolutions in the Voyager record.  Any edits get overwritten in the subsequent record load. 
  • Resources not directly or indirectly maintained by Cornell.
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