Lots of the time when searching for DOIs our requests get redirected to crossref. If we provide them an email with which they can contact us in the headers of our requests, then we will get more reliable response times from them:
https://www.crossref.org/documentation/retrieve-metadata/rest-api/tips-for-using-the-crossref-rest-api/
Lots of the time when searching for DOIs our requests get redirected to crossref. If we provide them an email with which they can contact us in the headers of our requests, then we will get more reliable response times from them:
https://www.crossref.org/documentation/retrieve-metadata/rest-api/tips-for-using-the-crossref-rest-api/