Every time you connect to a webserver your browser transmits information about your system to the webserver. The information shown above is only an extract of the transmitted informations.
The amount of transmitted information depends on the used browser and the setting in use.If you are concerned about the transmitted informations, changing the privacy setting of your browser might change the amount of information transmitted to the webserver. However your IP-address and the port are needed for the webserver to send the requested data back to you.
If you desire to hide your IP, using a proxy or the tor network will hide your IP-adress.