Websites that are only accessible over Tor are called "onions" and end in the TLD .onion. For example, the DuckDuckGo onion is https://duckduckgogg42xjoc72x3sjasowoarfbgcmvfimaftt6twagswzczad.onion/. You can access these websites by using Tor Browser. The addresses must be shared with you by the website host, as onions are not indexed in search engines in the typical way that vanilla websites are.
Download Tor Browser to experience real private browsing without tracking, surveillance, or censorship.
Download Tor BrowserTrademark, copyright notices, and rules for use by third parties can be found in our Trademark and Brand policy.