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:101:1-201309122478
	http://www.edition-nautilus.de/programm/Flugschriften/buch-978-3-89401-785-9.html RESTEASY004655: Unable to invoke request: java.net.SocketTimeoutException: Read timed out
	https://d-nb.info/1041715285/34 Success. Document available.

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