What is a fake impact factor, and how do I spot one?
A fake impact factor is a citation-like metric issued by an organisation with no relationship to Clarivate or Web of Science, designed to look official. The genuine Journal Impact Factor comes from one place only: Journal Citation Reports (JCR) by Clarivate. Any other name is either a different legitimate metric (CiteScore, SJR, SNIP) or a commercial invention. Predatory journals cite fake metrics to appear credible.
Detail
Common fake metric names
Watch for these — none is real: Global Impact Factor, Universal Impact Factor, International Impact Factor, Cosmos Impact Factor, General Impact Factor, SJIF (Scientific Journal Impact Factor), IIFS (International Impact Factor Services), InfoBase Index (IBI). They typically cost the journal a small annual fee for the badge. The 'metric' has no methodology, no audit, and no meaning.
The three-second test
Real JIF appears in Clarivate's JCR database. If the journal claims an 'Impact Factor' but a JCR search returns nothing, it is not a real IF. If the badge on the journal's site is not from clarivate.com or webofscience.com, it is decorative.
Why journals use them
For journals rejected from Web of Science and Scopus, fake metrics create a false badge of quality. Authors from countries requiring 'impact factor journals' for degrees or tenure sometimes accept these — and later find their publication doesn't count.
What matters instead
If a journal is not in Web of Science or Scopus, check DOAJ (Directory of Open Access Journals). DOAJ listing is not a citation metric but is a legitimate quality signal. For citation impact without JIF, use CiteScore or SJR — both are transparent and free.