For example, does the URL http://www.google.com/ make the URL less safe, even though the default for this domain is with https?

CodePudding user response：

Accessing a site using http:// (thus the unprotected unecrypted HTTP protocol) means that at least one unprotected HTTP request is sent to the server (most sites that support https will automatically redirect you to the https version).

This unprotected request can be intercepted by an attacker and thus send you arbitrary data back (malicious JavaScript code, redirect to other sites and so on).

The only exception is if you type http://www.google.com/ and you are using Chrome browser because Chrome will for addresses on google.com automatically change the entered URL to https:// before anything is sent on the network.