http://e55lzoju6enqswtvm66sk3uqukcin3377ehgiorplj4d7qyssipls4yd.onion/en/blog/how-can-i-use-tor-browser-to-anonymously-enter-the-darknet.php
The top-level domain of the websites in the darknet, for instance, is commonly in .onion. The websites also don’t use regular domain names. Instead, they use a series of numbers and letters that don’t make sense to anyone coming across them without prior knowledge.