No web browser is available for Apple TV. Safari does not exist on tvOS, and third-party web browsers are not available in the App Store for Apple TV.
That being said, there is an easy way to browse websites from a secondary Apple device. If you have an iPhone, iPad, iPod touch, or Mac, you can open a web browser and share your screen to the Apple TV with AirPlay.
If you have lost or broken your Apple TV remote, or if you just prefer to, you can use your iPhone as a remote for your Apple TV. The latest version of iOS will automatically add Apple TVs with Airplay 2 (4th generation and later Apple TVs) once they are set up for it. There's just a few quick steps to set up your iPhone as a remote for your Apple TV:
Apple's Home app is designed to be the hub from which you control all of your smart accessories, appliances and other systems around your house. If you have geared up your home with all the latest technology you could set your thermostat, control your lighting, turn on music/TV, set the alarm and much, much more, all from your iPhone. Usually, when you set up a new HomeKit ready device in your home, it has a QR code that will automatically add it to your Home app. For the Apple TV, however, you have to add it through the TV's settings. Here's how to do it:
iOS has extensive settings that allow you to control and restrict what content your kids are allowed to see, what they are allowed to purchase, what apps they can use and even how much screen time per app they are allowed. The Apple TV doesn't have quite the same amount of parental controls, but you can still certainly block in-app purchases, restrict viewing content and set some other boundaries.