Our site uses Google Tag Manager and we have China users having issues - pointing to GTM as the culprit.
I know and read that major google services are blocked in China, but does this include www.googletagmanager.com?
Is there a possibility that GA is blocked, while GTM is allowed? Or GTM is blocked, based on the screen shot above?
Is it possible to request from China user for a trace route maybe?
Need your insights please.