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:kobv:109-1-7773137
	http://digital.zlb.de/viewer/resolver?urn=urn:nbn:de:kobv:109-1-7773137 STATUS : 301 → Redirecting to : https://digital.zlb.de/viewer/resolver?urn=urn:nbn:de:kobv:109-1-7773137
	https://digital.zlb.de/viewer/resolver?urn=urn:nbn:de:kobv:109-1-7773137 STATUS : 404 → Skipping : https://digital.zlb.de/viewer/resolver?urn=urn:nbn:de:kobv:109-1-7773137

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