The link you followed will bring you to this page:

https://www.cartografia.servizirl.it/viewer40/map/2D?parameters=%7B%20%22servicesLM%22:%5B%7B%20%22type%22:%22ESRI:AGSD%22,%22label%22:%22Alberi%20monumentali%22,%22visible%22:true,%22url%22:%22https:%2F%2Fwww.cartografia.servizirl.it%2Fexpo%2Frest%2Fservices%2Fgpt%2Falberi_monumentali%2FMapServer%22,%22docuuid%22:%22r_lombar:09e67617-a80e-40e2-8456-30ef4fb4df8d%22,%22alpha%22:0.7%20%7D%5D%7D