With this function, the resolver checks all associated URLs and marks them either with a green tick or, in the event of an error, with a red cross. Users are redirected to the first URL marked in green.

Analyse	urn:nbn:de:bib-var-2019-026
	https://www.bib.bund.de/Publikation/2019/pdf/Policy-Brief-Alterung-und-Arbeitsmarkt.pdf?__blob=publicationFile&v=13 STATUS : 303 → Redirecting to : https://www.bib.bund.de/error_path/400.html?al_req_id=Z5735dbIfArlTJeproT7bQAAB2E
	https://www.bib.bund.de/error_path/400.html?al_req_id=Z5735dbIfArlTJeproT7bQAAB2E STATUS : 400 → Skipping : https://www.bib.bund.de/error_path/400.html?al_req_id=Z5735dbIfArlTJeproT7bQAAB2E
	http://d-nb.info/1219682667/34 STATUS : 301 → Redirecting to : https://d-nb.info/1219682667/34
	https://d-nb.info/1219682667/34 STATUS : 404 → Skipping : https://d-nb.info/1219682667/34

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