The link you followed will bring you to this page:

https://it.s3.objecthost.it/private/production/certificati/37677.pdf?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=PYBAGYGY70VQB6J4ZLY1/20230623/host/s3/aws4_request&X-Amz-Date=20230623T154216Z&X-Amz-Expires=600&X-Amz-SignedHeaders=host&response-content-disposition=inline&X-Amz-Signature=53d98996c62cc80848e3e32fe189bcedf4e20eac615e980522d77dee70e8f600