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:urmel-ufb-167921
	https://dhb.thulb.uni-jena.de/receive/ufb_cbu_00033409?&derivate=ufb_derivate_00016792 STATUS : 503 → Server error during contacting : https://dhb.thulb.uni-jena.de/receive/ufb_cbu_00033409?&derivate=ufb_derivate_00016792

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