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:1111-201802092572
	http://dx.doi.org/10.1186/s40663-017-0116-9 STATUS : 301 → Redirecting to : https://dx.doi.org/10.1186/s40663-017-0116-9
	https://dx.doi.org/10.1186/s40663-017-0116-9 STATUS : 302 → Redirecting to : https://forestecosyst.springeropen.com/articles/10.1186/s40663-017-0116-9
	https://forestecosyst.springeropen.com/articles/10.1186/s40663-017-0116-9 STATUS : 406 → Skipping : https://forestecosyst.springeropen.com/articles/10.1186/s40663-017-0116-9
	http://d-nb.info/1152076043/34 STATUS : 301 → Redirecting to : https://d-nb.info/1152076043/34
	https://d-nb.info/1152076043/34 Success. Document available.

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