Default exclusions on macOS
These paths are excluded from backups by default on macOS:
System and application caches
/Library/Caches//System/Library/Caches/
User-specific temporary files and caches
/Users/*/Library/Caches//Users/*/.Trash/
Temporary directories
/tmp//var/tmp//var/log//private/tmp//private/var/tmp//private/var/log/
Spotlight indexes
*/Spotlight-V100//.Spotlight-V100/
Time Machine backups
/Volumes/com.apple.TimeMachine.localsnapshots//.MobileBackups/
Miscellaneous
/.TemporaryItems//.fseventsd/
Core dumps
/cores/
Network mounts and shared volumes
/Network/
Application Support (non-essential)
/Users/*/Library/Application Support/CrashReporter//Users/*/Library/Application Support/Google/Chrome/Default/Cache//Users/*/Library/Application Support/Firefox/Profiles/*.default/cache2//Users/*/Library/Application Support/Slack/Service Worker/CacheStorage/
Safari
/Users/*/Library/Safari/LocalStorage//Users/*/Library/Safari/Favicon Cache//Users/*/Library/Containers/com.apple.Safari/Data/Library/Caches/
System folders and containers
/private//System/
User Library containers and groups
/Users/*/Library/Containers//Users/*/Library/Group Containers//Users/*/Library/Daemon Containers/
Application Support for system apps
/Users/*/Library/Application Support/com.apple*/