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:101:1-2021080823354949704521
	https://doi.org/10.1186/1475-925X-8-40 STATUS : 302 → Redirecting to : https://biomedical-engineering-online.biomedcentral.com/articles/10.1186/1475-925X-8-40
	https://biomedical-engineering-online.biomedcentral.com/articles/10.1186/1475-925X-8-40 STATUS : 301 → Redirecting to : https://link.springer.com/article/10.1186/1475-925X-8-40
	https://link.springer.com/article/10.1186/1475-925X-8-40 STATUS : 303 → Redirecting to : https://idp.springer.com/authorize?response_type=cookie&client_id=springerlink&redirect_uri=https%3A%2F%2Flink.springer.com%2Farticle%2F10.1186%2F1475-925X-8-40
	https://idp.springer.com/authorize?response_type=cookie&client_id=springerlink&redirect_uri=https%3A%2F%2Flink.springer.com%2Farticle%2F10.1186%2F1475-925X-8-40 STATUS : 302 → Redirecting to : https://idp.springer.com/transit?redirect_uri=https%3A%2F%2Flink.springer.com%2Farticle%2F10.1186%2F1475-925X-8-40&code=b3437471-2d92-4e57-a0ce-fa28794d68da
	https://idp.springer.com/transit?redirect_uri=https%3A%2F%2Flink.springer.com%2Farticle%2F10.1186%2F1475-925X-8-40&code=b3437471-2d92-4e57-a0ce-fa28794d68da ERROR : Got more than maximum allowed 3 redirects! Stopping to follow.
	https://d-nb.info/1238514685/34 Success. Document available.

Please contact the responsible organisation if you experience any errors with the URLs.