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:101:1-2022060408240495528027
	https://doi.org/10.1186/s41937-022-00085-5 STATUS : 302 → Redirecting to : https://sjes.springeropen.com/articles/10.1186/s41937-022-00085-5
	https://sjes.springeropen.com/articles/10.1186/s41937-022-00085-5 STATUS : 406 → Skipping : https://sjes.springeropen.com/articles/10.1186/s41937-022-00085-5
	http://d-nb.info/1259131483/34 STATUS : 301 → Redirecting to : https://d-nb.info/1259131483/34
	https://d-nb.info/1259131483/34 Success. Document available.

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