Last updated: April 2026 · 7 min read · Audience: Authors, students, early-career researchers · Reading level: Introductory
Introduction
Indexing is the practical mechanism for making published work discoverable. A journal indexed in Scopus, Web of Science, or DOAJ is reachable through major academic search engines and citation networks; an unindexed journal is essentially invisible to systematic search.
This page covers the indexing decision from the author's perspective. The technical infrastructure is documented elsewhere; the focus here is selection.
Major international indexes
| Index | Coverage | Verification URL |
|---|---|---|
| Scopus | Multidisciplinary, ~25,000 journals | scopus.com source list |
| Web of Science | Multidisciplinary, with several sub-indexes | Master Journal List |
| DOAJ | Open-access journals, ~20,000+ | doaj.org search |
| PubMed/MEDLINE | Biomedical literature | ncbi.nlm.nih.gov/pubmed |
| Google Scholar | Broad, less curated | scholar.google.com |
| Field-specific (MathSciNet, PsycINFO, etc.) | Discipline-anchored | Discipline-specific tools |
Practical guidance
- Verify indexing in at least one major database before submitting.
- Check the journal's own claims against the database directly; do not trust pasted logos.
- For biomedical work, PubMed/MEDLINE indexing is particularly important.
- For open-access work, DOAJ inclusion is a meaningful credibility signal.
- Consider regional indexes alongside global ones for region-specific work.
What unindexed means
Decision guidance
Indexing should be a primary criterion in journal selection. A well-indexed journal with weaker prestige is generally more useful than a higher-prestige journal that is not yet indexed; the publication's discoverability matters for years after publication.
Example scenarios
Scenario: a master's student building a citable record
First publications in indexed journals appear in systematic searches and citation databases for decades. The indexing record is what makes the publication count toward future evaluations. Verify indexing before submission; do not rely on the journal's claims.
Scenario: a PhD researcher targeting hiring committees
Hiring committees often check publications through Scopus or Web of Science. Indexed publications appear in these searches; unindexed publications do not. The hiring impact of an unindexed publication is far weaker than its quality might suggest.
Scenario: an international researcher with regional audience
Authors with primarily regional audiences may benefit from regional indexes (SciELO, KCI, CSCD, J-Stage) alongside or instead of the major global ones. The strongest journals are typically indexed in both regional and global databases.
What to do next
Verify the target journal's indexing in at least one major database before submission. Authors targeting EP Journals Group venues can confirm indexing on each journal's site.
Frequently asked questions
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Journals for Multidisciplinary Research
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Related reading and next steps
- Submission portal — Submit a manuscript through the central form
- Journals list — Six peer-reviewed journals across disciplines
- What is indexing in journals
- How to check journal legitimacy
- Indexed vs non-indexed
- Publishing in engineering
Editorial enquiries
Questions about this guide or about preparing a manuscript for submission may be directed to the editorial office. Where a query relates to a specific journal in the portfolio, please indicate the journal abbreviation in your message.
Email: editor@ep-journals.org