Apple is decide to re-route the all safe browsing through proxy servers, apple control it. However, with the beta-levels upcoming ios 14.5 update coming out. The main purpose of doing this is to defend its users privacy. And also prevent ios users IP address from being capture by Google.
To enable this features,you need to enable the “ Fraudent website warning” option in your safari browser settings. It allow you to use Google safe browsing technology in your safari browser. This technology send the URL that a user is trying to access to Google’s safe browser servers to check any threats in that URL.
If this URL contains malwares or other threats, Google will block the safari browser from accessing the site and issue a warning .
The new features will re-route all safe browser checks from a safari browser through apple’s proxy servers. Doing so indicates that all safe browsing checks come, from the same IP address (Apple owed proxy server’s IP address).
Source : techieinstant