How to Fix Safari Can’t Establish a Secure Connection Error?

If you're encountering the "Safari can't establish a secure connection" error, it typically means that Safari is unable to establish a secure connection with the website you're trying to visit. This error can occur due to various reasons, including issues with SSL certificates, outdated browser versions, incorrect date and time settings, or problems with your internet connection. Here are some steps you can take to troubleshoot and fix this error:

Check your internet connection: Make sure you have a stable internet connection by trying to visit other websites or using other internet-dependent applications. If your internet connection is unstable, contact your service provider for assistance.
Verify the website's SSL certificate: Sometimes, the error occurs due to issues with the website's SSL certificate. If you're visiting a specific website, try accessing it from a different browser or device to check if the issue is specific to Safari. If the error persists on other browsers or devices, it indicates a problem with the website's SSL certificate. In such cases, you should contact the website owner or administrator for further assistance.
Update Safari: Ensure that you're using the latest version of Safari. Updates often include bug fixes and security enhancements, which can resolve issues like this. To update Safari on macOS, go to the App Store and click on the "Updates" tab. On iOS, open the App Store and tap on "Updates" at the bottom right.
Clear Safari cache and website data: Cached files and website data can sometimes interfere with secure connections. To clear the cache and website data in Safari on macOS, go to Safari -> Preferences -> Privacy -> Manage Website Data, then click "Remove All." On iOS, go to Settings -> Safari -> Clear History and Website Data.
Adjust date and time settings: Incorrect date and time settings can cause SSL certificate verification issues. Ensure that your device's date and time are set correctly. On macOS, go to System Preferences -> Date & Time, and on iOS, go to Settings -> General -> Date & Time.
Disable extensions and plugins: Safari extensions or plugins could potentially interfere with secure connections. Try disabling any extensions or plugins you have installed and check if the error still occurs. If the error is resolved after disabling an extension or plugin, you can selectively enable them to identify the problematic one.
Reset Safari: If none of the above steps work, you can try resetting Safari to its default settings. This will remove your browsing history, cookies, and other data, so ensure you have backups or exports of important information. On macOS, go to Safari -> Clear History -> All History. On iOS, go to Settings -> Safari -> Clear History and Website Data.

If the issue persists after following these steps, it's recommended to contact Apple Support or the website's support team for further assistance.