Most shown differences between deep web and clear web is that they use slightly different type of links (URL on .Onion formats )
To show examples of deep web based websites open TorBrowser and just click next [link](https://hiddenwiki.com/) there u can see several links used by deep web based websites
To say easily websites link on DarkNet looks like a simple hashed data
Search engines we used daily doesn't index anything from DarkWeb. For that there are special search engines based on DarkWeb like a [DarkWeb based DuckDuckGo](https://3g2upl4pq6kufc4m.onion/), or specific different type of search engines out there like a: Torch and etc