DataCite has a link checker service that periodically checks a random sampling of DOIs to verify that they still resolve to a valid URL and to gather other useful information about the metadata for DOIs registered with DataCite.
The link checker service runs automatically in the background, so there is nothing Members need to do and nothing they need to enable in order to benefit from the service.
The results of the link checker are displayed in DOI Fabrica at the bottom of each DOI record that has been checked.
Below is an example of a link checker result for one of the DOIs minted by ARDC:
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