Some Content,Ad or Social platforms automatically create page thumbnails when you use a URL/kURL on their system. Depending on the 3rd party system , and their ability to properly handle the various redirect types an incorrect page thumbnail / page title may be created. The following items below can be used to diagnose / solve the problem with page thumbnails
2) If you are using a white label domain and are using HTTPS/SSL, you must ensure that you have provided the proper certificate to gShift support. Page thumbnails may fail if a domain name mismatch on the default domain (gshift.it) gets applied to a white label domain.