Depending on the size of your cache, this can take a few minutes, so you may need to be patient!.You should now notice a new ‘Develop’ option in the menu bar select it and then click ‘Empty Caches.’.Select ‘Safari > Preferences.’ from the Safari menu bar.This requires you to uncover Safari’s hidden ‘Develop’ menu, if you haven’t already: If you’re encountering strange behaviour when trying to access certain websites, then it may help to delete your regular Safari cache. Sudo dscacheutil -flushcache Deleting the regular cache If you’re not running macOS High Sierra, then you’ll need to use a different Terminal command.įor macOS versions 10.10.0–10.10.3, use the following:įor macOS versions 10.5–10.6, use the following: After resetting the cache, you may need to quit and then relaunch some Internet-connected applications, before these applications acknowledge the DNS changes.Enter your admin password when prompted.Press the ‘Enter’ key on your keyboard.

Reset dns servers mac