Cited-by lets members show authors and readers what other Crossref content is citing their content. It’s a little like reference linking in reverse and lets your readers navigate from your content to the content that is citing it.

Cited-by gives readers of your content the chance to navigate from the article they are on to the content that’s citing it.

Watch the video in English below to find out more, or choose to watch the video in
either French, Spanish, Brazilian Portuguese, Chinese, Japanese or Korean:
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There are many online citation indexing services and databases but what is different about Cited-by is that it lets our members display the Cited-by links on their content on their own website. This benefits the readers of the content because they can get a sense of how often the content has been cited and can easily click the links to go to the citing content. How often something is cited can also be useful information for publishers, authors, research institutions and funders.

How it works

Publishers retrieve metadata records of publications that cite their content. This allows for the display of citations on cited content so readers can see that the content they’re reading is being cited, as in this example:

article citation count

Obligations & fees

  1. Participation in Cited-by is optional - just deposit references with Crossref.
  2. There is no charge for participation in Cited-by.
  3. Publishers can only start retrieving Cited-by links from us after they start depositing the references for their current content. This keeps the system fair - you link to other member content and they link to you.
  4. Only the member who registers content with Crossref can retrieve the Cited-by data and links for that content. The count of the number of times content is cited is available in Crossref metadata.

Getting Started

Cited-by follows a simple three-step process:

  • Step 1: Publishers deposit references as part of the regular content registration.
  • Step 2: Crossref matches the metadata in the references to DOIs to establish a Cited-by relationship in the database. As new content is registered Crossref will automatically update the relationships and notify you of new links.
  • Step 3: Publishers and hosting platforms query relationships, retrieve the metadata of citing articles and display the links on their website.

Best Practice

  • Participation in Cited-by is optional, but encouraged.
  • Because citations can happen any time, Cited-by links must be kept up-to-date. So, members should either check regularly for Cited-by links or (if performing XML queries) set the alert attribute to “true”. This means the search will be saved in the system and you’ll get an alert when there is a new match.
  • Once retrieved, Cited-by links should be included on your website.



Follow this link and click on “Citations” to see the Cited by list from Crossref on the New Journal of Physics.

Please contact our member services team with any questions or to get set up, or contact our support team for any technical or troubleshooting questions.

Last Updated: 2018 February 16