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-2017-023
	https://www.bib.bund.de/Publikation/2017/pdf/Familienleitbilder-Alles-wie-gehabt-Partnerschaft-und-Elternschaft-in-Deutschland.pdf STATUS : 303 → Redirecting to : https://www.bib.bund.de/error_path/400.html?al_req_id=Z577qYTSswHBIVk9WUoDhQAAB98
	https://www.bib.bund.de/error_path/400.html?al_req_id=Z577qYTSswHBIVk9WUoDhQAAB98 STATUS : 400 → Skipping : https://www.bib.bund.de/error_path/400.html?al_req_id=Z577qYTSswHBIVk9WUoDhQAAB98
	http://d-nb.info/1144964970/34 STATUS : 301 → Redirecting to : https://d-nb.info/1144964970/34
	https://d-nb.info/1144964970/34 STATUS : 404 → Skipping : https://d-nb.info/1144964970/34

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