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-6453f549-07ad-4c84-8849-6c51e19d74c14
	https://dhb.thulb.uni-jena.de/receive/ufb_cbu_00010320?&derivate=ufb_derivate_00009531 RESTEASY004655: Unable to invoke request: org.apache.http.conn.ConnectTimeoutException: Connect to dhb.thulb.uni-jena.de:443 [dhb.thulb.uni-jena.de/141.35.111.200, dhb.thulb.uni-jena.de/141.35.110.200] failed: Read timed out

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