A few months ago, I found a web app that showed statistics on my experience as a reviewer, especially with respect to Elsevier journals; it just displayed the number of referee reports I had submitted, for each journal.
Given the data, I think it was some service owned by Elsevier, but despite my best efforts, I cannot find it anymore. I thought it might have been Mendeley, but not quite: my (private) Mendeley profile just shows the last two papers I've reviewed, along with a broken link to "view all publications".
Publons, in principle, is similar to what I'm looking for, but it does not have any agreement with Elsevier (and in fact, the peer review part of my Publons profile is currently empty). Any ideas?