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:bsz:14-qucosa2-906969
	https://tud.qucosa.de/id/qucosa:90696 STATUS : 302 → Redirecting to : https://tud.qucosa.de/landing-page/?tx_dlf[id]=https%3A%2F%2Ftud.qucosa.de%2Fapi%2Fqucosa%253A90696%2Fmets
	https://tud.qucosa.de/landing-page/?tx_dlf[id]=https%3A%2F%2Ftud.qucosa.de%2Fapi%2Fqucosa%253A90696%2Fmets RESTEASY004655: Unable to invoke request: java.net.SocketTimeoutException: Read timed out
	https://tud.qucosa.de/api/qucosa:90696/attachment/ATT-0/ STATUS : 404 → Skipping : https://tud.qucosa.de/api/qucosa:90696/attachment/ATT-0/
	https://d-nb.info/132938184X/34 STATUS : 404 → Skipping : https://d-nb.info/132938184X/34

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