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:bsz:16-diglit-28137
	https://digi.ub.uni-heidelberg.de/diglit/feldztgwachtwest1917 RESTEASY004655: Unable to invoke request: org.apache.http.conn.ConnectTimeoutException: Connect to digi.ub.uni-heidelberg.de:443 [digi.ub.uni-heidelberg.de/147.142.186.57] failed: Connect timed out

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