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:101:1-2018090916202775809078
	http://dx.doi.org/10.1038/s41467-018-03176-1 STATUS : 301 → Redirecting to : https://dx.doi.org/10.1038/s41467-018-03176-1
	https://dx.doi.org/10.1038/s41467-018-03176-1 STATUS : 302 → Redirecting to : https://www.nature.com/articles/s41467-018-03176-1
	https://www.nature.com/articles/s41467-018-03176-1 STATUS : 303 → Redirecting to : https://idp.nature.com/authorize?response_type=cookie&client_id=grover&redirect_uri=https%3A%2F%2Fwww.nature.com%2Farticles%2Fs41467-018-03176-1
	https://idp.nature.com/authorize?response_type=cookie&client_id=grover&redirect_uri=https%3A%2F%2Fwww.nature.com%2Farticles%2Fs41467-018-03176-1 STATUS : 302 → Redirecting to : https://idp.nature.com/transit?redirect_uri=https%3A%2F%2Fwww.nature.com%2Farticles%2Fs41467-018-03176-1&code=3c1ceb4d-9971-4723-8d2d-169ec816448b
	https://idp.nature.com/transit?redirect_uri=https%3A%2F%2Fwww.nature.com%2Farticles%2Fs41467-018-03176-1&code=3c1ceb4d-9971-4723-8d2d-169ec816448b ERROR : Got more than maximum allowed 3 redirects! Stopping to follow.
	http://d-nb.info/1166538656/34 ERROR : Got more than maximum allowed 3 redirects! Stopping to follow.

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