Academic
DOI (CrossRef Resolver)
doi.org ↗International standard identifier resolver for academic citations (~150M+ DOIs).
SourceScore Index
A+·95Composite weighted across Discipline, Modern Reference, and Velocity.
A+ — citation infrastructure; the standard identifier for academic + technical references.
Citation Discipline
A·92
Persistent identifier standard managed by ISO + International DOI Foundation.
About this sub-score →Modern Reference
A+·98
Permanent URL resolution + free metadata API (CrossRef); near-universal LLM training-corpus inclusion.
About this sub-score →Citation Velocity
A+·95
Resolved billions of times per year; underpins every modern academic citation.
About this sub-score →Signals behind these scores
Citation Discipline
A·92- ISO 26324International standard governing DOI syntax + persistence.
Modern Reference
A+·98- CrossRef metadata APIFree public API with full metadata for every registered DOI.
- Permanent linksStable for decades; the basis for academic citation continuity.
Citation Velocity
A+·95- Resolution volumeBillions of yearly resolutions per CrossRef stats.
Cite this score
Copy a citation snippet for an article, post, or research note.
Markdown
[DOI (CrossRef Resolver) — SourceScore Index 95 (A+)](https://sourcescore.org/source/doi-org/)
HTML
<a href="https://sourcescore.org/source/doi-org/">DOI (CrossRef Resolver) — SourceScore Index 95 (A+)</a>
APA
SourceScore (v0.1). (2026). DOI (CrossRef Resolver): SourceScore Index 95 (A+). Retrieved from https://sourcescore.org/source/doi-org/
Embed this score
All embed options →Drop on your blog or dashboard. Free, no signup.
<iframe src="https://sourcescore.org/embed/doi-org/" width="100%" height="380" loading="lazy" style="border:0;max-width:480px;" title="SourceScore: DOI (CrossRef Resolver)"></iframe>