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    A global network of experts archiving the Web for future generations.

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    The web is a unique and dynamic resource that is of high value to current and future researchers.

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  • Persistent Linking

    Caption: Image attributed to

    Because websites and other digital content can disappear or change without warning, web archives offer the opportunity for users to provide links to specific, stable versions of the content in question. This may be achieved either with formal persistent identifiers assigned to each resource, or by means of a consistent and stable URL structure for accessing resources. Having access to a known version of a website at a specific location allows for users to reference this content and access it knowing precisely which version of the website is being used.

    Resources in the Library of Congress Web Archive are assigned a unique Citation ID, which redirects to the location of the archived website. These IDs ensure that even if the archive’s standard URL structure should change, cited websites will still be able to be located.
    The Internet Archive gives specific information about how best to cite archived websites in publication, based on the MLA citation standard.


    This case study is part of a Web Archiving Use Cases report written by Emily Reynolds for the Library of Congress.