Some of the characteristics of predatory open-access publishing include:

  • Unheard-of publishers with dozens of journals in unrelated areas
  • Groups of journals with very similar or overlapping scope
  • Journals with absurdly broad subject areas
  • Journals with few published articles per issue, or few published issues
  • No journal impact factor
  • Use of fake "impact factors"
  • Not in ISI JCR
  • Not in DOAJ
  • Absent from standard indexes (e.g. medical journals not indexed in PubMed)
  • Cited in hoax publication tests
  • Listed by Jeffrey Beall
  • No DOI number
  • Spammed by WP:SPAs, especially where usernames match author names
  • Online reports of spam solicitation for papers

Further reading

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  • Ebrahimzadeh, MH (April 2016). "Validated Measures of Publication Quality: Guide for Novice Researchers to Choose an Appropriate Journal for Paper Submission". The Archives of Bone and Joint Surgery. 4 (2): 94–6. PMC 4852052. PMID 27200383.