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Your IP (Based on what the website sees when connected, If you are using a proxy or vpn, its their ip):

If you are worried about my computer being able to see your IP address when connecting, How about other websites that you connect to,
IP addresses are how clients/servers know where to packets (the data that makes up the webpage, images, etc...) need to go
If your computer has any ip addresses like this

192.168.X.X
10.X.X.X
172.16.X.X-172.31.X.X

You dont need to worry about bluring them out (cause these IP addresses don't even matter outside your network)
For Example: My Nintendo Wii's IP address is 192.168.0.142, however you may or may not have a laptop on your network with exact same IP address
Mac Addresses: example 00:21:47:07:54:b6 (My wii's mac address for its wifi adapter) you don't need to blur out this number either (cause mac addresses are subnet specific)