Criteria for identifying predatory conferences is similar to that for journals.
Below is the criteria from Think. Check. Attend.
Organizers & Sponsors
Agenda & Editorial Committee
Conference Proceedings
More criteria from AuthorAID: What are ‘predatory’ conferences and how can I avoid them?
Read this 2016 Science article by Adam Ruben -- Dubious conferences put the ‘pose’ in ‘symposium’ -- to learn more about how predatory conferences work.
An international initiative, introduced by Knowledge E, that aims to guide and assist researchers and scholars when choosing trusted conferences to attend and to present their research.
This blog is an offshoot of Forensic Science, Statistics & the Law. Two of the most popular postings were lists of flaky academic journals and conferences and correspondence with the staff operating some of them. The criteria for inclusion on the lists are unsolicited email to me (spam), indications of shady practices or possible incompetence in the subject areas, and reports on other websites. The burgeoning length of the lists and supporting information made them unwieldy, so I decided they merited separate blogs that could be more readily updated and searched.
Beall's List of publishers includes journal and conference publishers. "This is an archived version of the Beall's list - a list of potential predatory publishers created by a librarian Jeffrey Beall. We will only update links and add notes to this list."
List of questionable conferences compiled by Dana Roth, librarian at Caltech Library.
Conference alert websites allow predatory publishers to post their conferences.