See our article 'The Internet Great Escape'
To find out how much information can be gathered by other parties whilst you're online, see www.privacy.net or https://thebestvpn.com/what-does-google-know-about-you.
If you are concerned that your ISP or anyone else can track where you're surfing, there are proxy servers and VPN (Virtual Private Network) services that can provide you with an 'anonymous' or secure online presence. Useful if you're in a 'sensitive' situation or suspect you're being 'monitored'. For an explanation of the difference between these services, see https://privacy.net/proxy-servers-vs-vpns
VPN (Virtual Private Network) services: