GEST DOI Health

Journal & publisher DOI validation — registry-first, transparent, read-only.
Single DOI Multiple / references Issue URL Full Journal Publisher

Publisher DOI Health

Registry-first publisher audit. Enter the Crossref member ID. No publisher-site crawl is required for the registry inventory.

GEST V4.0.0 · Read-only · No database writes · No Crossref/DataCite writes.
Registry metadata: Crossref/DataCite. Resolution: DOI.org. Website checks are bounded and reported separately from registry facts.