CiteScore metrics can be accessed for free on the following websites:
Scopus.com – To deep-dive into a journal, click on the Source Details feature of Scopus for full access to CiteScore metrics.
JournalMetrics.Scopus.com – Search and filter features let you explore the full range of CiteScore metrics for a group of journals (such as open access journals), a subject category or a publisher view. You can also download the complete set of CiteScore metrics as an Excel file.
Journal homepages on Elsevier.com – Access CiteScore metrics for more than 2,500 journals published by Elsevier.