Web cookies are small pieces of data sent from websites. Restart your computer when you’re done clearing caches. You will be asked to input your admin password to execute the command. Type (or copy) this command exactly as it is into Terminal and hit Enter. Sudo dscacheutil -flushcache sudo killall -HUP mDNSResponder say cache flushed You can clear the DNS cache with a single command: While you’re at it, you may also consider clearing the DNS cache, which contains old entries that translate internet domain names into IP addresses, allowing you to type instead of, let’s say, 64.233.191.255.

Some developers store important data in there, like user credentials, so you should proceed with caution and delete only the folders which definitely contain junk. Keep in mind that not everything located in the Caches folder can be safely deleted. You should see a long list of folders and files belonging to various applications. To access it, open Finder and go to /Library/Caches. The main Mac cache that you should worry about is located in the Library folder. When a cache is filled with junk, it takes longer to retrieve useful temporary data from it, and it may even become impossible to store new data in the cache. Your operating system and applications should automatically purge the temporary data stored in caches when they are no longer needed, but this seldom happens in reality. Caches are storages of temporary data used by the macOS operating system and applications. To keep your Mac computer in an excellent condition, you must do a thorough cleanup once in a while, and this article explains how.Ĭlearing cache on Mac computers usually leads to instant performance boost that lasts for weeks and even months. It’s not unusual for Mac computers to slow down over time when not properly maintained.

How do i clear cache on mac book air