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:355-ubr16048-3
	http://digital.bib-bvb.de/webclient/DeliveryManager?&custom_att_2=simple_viewer&pid=7725883 STATUS : 503 → Server error during contacting : http://digital.bib-bvb.de/webclient/DeliveryManager?&custom_att_2=simple_viewer&pid=7725883

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