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:bvb:473-opus-3421
	https://fis.uni-bamberg.de/handle/uniba/294 RESTEASY004655: Unable to invoke request: org.apache.http.conn.ConnectTimeoutException: Connect to fis.uni-bamberg.de:443 [fis.uni-bamberg.de/141.13.238.35] failed: Read timed out
	http://d-nb.info/1058654217/34 STATUS : 301 → Redirecting to : https://d-nb.info/1058654217/34
	https://d-nb.info/1058654217/34 STATUS : 404 → Skipping : https://d-nb.info/1058654217/34

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