Are you using a VPN provider?
Well if the answer is yes, you have to configure your mac properly in order to be private. Other wise it's pretty much like if you were not using a VPN.
First of all, here is a website where you can check if your mac is leaking your home IP address
This is what you should see
https://ipfs.pics/ipfs/QmQnCmNmGeoVwphmidVdVisPpyg4HjeuREmAb7wdrnW1kv
1-Disable IPv6
Open Terminal and type this commant of you are using Wi-Fi
networksetup -setv6off Wi-Fi
This command if you use Ethernet
networksetup -setv6off Ethernet
2-Disable Location Services in System Preferences
https://ipfs.pics/ipfs/QmeG6Uz6iWBPYWHn34JmC1z9PYLUG9JYbop3V6nyQkmnSY
3-Disable Spotlight (Bing Web Searches)
https://ipfs.pics/ipfs/QmZBHbQi7u1nYv2YWqQW4bdnGPkQrT6QWvePNpoKRwGyuV
4-Disable some Widgets
https://ipfs.pics/ipfs/QmXypAABi4MjQc82BfzSYDGgAmzkVFfDw3sd8gz4X6GVYi
5-Use a different time zone than your city
https://ipfs.pics/ipfs/QmePGQJ5t7E1SR1sJMZGVvBW4oYRUZcWpcx93WXJKGSR5p
Safari Configuration
1-Disable Website use of location services
https://ipfs.pics/ipfs/QmbarJdt2vQfP2Jttk7tmUhWYwT2ndMhKSwT5wudCNYT6h
2-Disable search options
https://ipfs.pics/ipfs/QmUYLc4uNPJfVs4NEBpr4BkYs3BfzfDRBo2sMg4RrfnBVy
Now go again here https://ipleak.net and you should see this
https://ipfs.pics/ipfs/QmQnCmNmGeoVwphmidVdVisPpyg4HjeuREmAb7wdrnW1kv
That's it!! Hope it's going to help!!! Take care!!! :)