Verification sources
Where can I check predatory journals?
There is no single database that can safely answer every “is this journal predatory?” question. The strongest method uses several sources, each for the specific claim it is designed to verify.
Maintained by the Beallslists.com editorial review team · Evidence reviewed: · Current verification cycle: 2026
8 useful places to check
- Beall’s historical archive: useful for historical screening of publisher or standalone-journal names.
- ISSN Portal: useful for journal identity and ISSN records.
- NLM Catalog: useful for biomedical journal records and NLM indexing information.
- Scopus source information: useful for checking Scopus coverage and years.
- Clarivate Master Journal List: useful for Web of Science coverage.
- DOAJ: useful for checking whether an open-access journal is included in the directory.
- Crossref metadata: useful for DOI and publisher metadata checks.
- The journal's own policies: peer review, fees, editorial board, corrections, licensing and archiving must still be evaluated.
Match the source to the claim
| Claim | Best place to verify |
|---|---|
| “We are in PubMed/MEDLINE” | NLM records and the relevant NLM service. |
| “We are indexed in Scopus” | Scopus source information and coverage years. |
| “We are in Web of Science” | Clarivate Master Journal List. |
| “We have an Impact Factor” | Clarivate Journal Citation Reports/official journal record. |
| “Our DOI proves we are indexed” | Crossref can confirm DOI metadata, but DOI registration is not the same as indexing or quality certification. |
What not to rely on alone
Do not rely only on a copied logo, certificate, Google result, social-media post, screenshot or one blacklist/whitelist. Reproduce important claims yourself and record the date.
For a full workflow, use the Predatory Journal Checker.
Sources and further verification
- Think. Check. Submit. — researcher-focused journal and publisher due diligence
- Principles of Transparency and Best Practice in Scholarly Publishing — journal transparency principles from DOAJ, COPE, OASPA and WAME
Historical records are useful context, but journal ownership, indexing, policies and websites can change. Verify current claims at the original source before making a submission, hiring, promotion or funding decision.