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:21-dt-56631
	http://idb.ub.uni-tuebingen.de/opendigi/NKS_1969_044 STATUS : 301 → Redirecting to : https://opendigi.ub.uni-tuebingen.de/opendigi/NKS_1969_044
	https://opendigi.ub.uni-tuebingen.de/opendigi/NKS_1969_044 STATUS : 500 → Server error during contacting : https://opendigi.ub.uni-tuebingen.de/opendigi/NKS_1969_044

Please contact us if you experience any errors with the URN.