Why doesn't the Tor bundle feature a track/spy blocker?

1. Can Tor Browser be tracked?
2. Does your ISP know you're using Tor?
3. Which Tor service helps in bypassing ISP?
4. Should I use a VPN with Tor?

Can Tor Browser be tracked?

Although your internet traffic is encrypted on Tor, your ISP can still see that you're connected to Tor. Plus, Tor cannot protect against tracking at the entry and exit nodes of its network. Anyone who owns and operates the entry node will see your real IP address.

Does your ISP know you're using Tor?

Your Internet service provider (ISP) and local network can see that you connect to the Tor network. They still cannot know what sites you visit. To hide that you connect to Tor, you can use a Tor bridge.

Which Tor service helps in bypassing ISP?

Tor Bridges provide a solution to this problem. A bridge is also a Tor node but it's not listed on the main Tor directory. So your ISP can't easily block all bridges.

Should I use a VPN with Tor?

A VPN isn't a requirement to use Tor, but it helps a lot. It encrypts your whole traffic, masking it from the ISP. In short, it's much safer to use Tor with a VPN. Not all VPNs offer Tor features in their product.