iOS 18
Get a warning when you visit websites that use HTTP on iPhone
Websites use HTTP or HTTPS to transmit information to and from Safari; HTTP doesn’t provide a secure connection.
In iOS 18.2 or later, you can choose to receive a warning when you visit websites that use HTTP.
![The Not Secure Connection Warning control, located below Privacy & Security on the Safari screen in Settings.](https://help.apple.com/assets/6758C14AEA2BBD75D7023772/6758C150890517C4260090D6/en_US/7abe2507093cd1c2ca83195882e2cb7a.png)
Go to Settings
> Apps > Safari.
Below Privacy & Security, turn on Not Secure Connection Warning.