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:101:1-2009022206
	http://www.bibliographie-wittgenstein.homepage.t-online.de/ STATUS : 301 → Redirecting to : https://bibliographie-wittgenstein.hier-im-netz.de/
	https://bibliographie-wittgenstein.hier-im-netz.de/ STATUS : 404 → Skipping : https://bibliographie-wittgenstein.hier-im-netz.de/
	http://d-nb.info/992810973/34 STATUS : 301 → Redirecting to : https://d-nb.info/992810973/34
	https://d-nb.info/992810973/34 STATUS : 404 → Skipping : https://d-nb.info/992810973/34

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