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:101:1-2023062711563982981385
	https://ifs.ep.tu-dortmund.de/50-jahre/ STATUS : 404 → Skipping : https://ifs.ep.tu-dortmund.de/50-jahre/
	http://d-nb.info/129410831X/34 STATUS : 301 → Redirecting to : https://d-nb.info/129410831X/34
	https://d-nb.info/129410831X/34 Success. Document available.

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