We vet the Top 100 list carefully, using a combination of automated and manual checks. Research considered out of scope is removed from the Top 100. Each year, we remove between ten to twenty articles that don’t meet our criteria.


In 2019, we used the following criteria to determine the Top 100 list:


  • Within the Top 100 outputs by Altmetric Attention Score

  • Published between November 16, 2018 and November 15, 2019

  • Created by researchers, not journalists

  • Backed by original analyses

  • Attention deemed to be organic (i.e. not spam)


Criteria for previous years' lists can be found on those lists' About pages.


We love to hear that researchers take the Top 100 seriously, and that many consider it an honor to be included in the list. However, we’re not able to consider requests to recalculate the Top 100 list in order to include research that we’ve already determined to be out of scope.


If you’d like to learn more about how Altmetric tracks attention to research, this information and this video are a great place to start.