Find usernames across social networks

 Sherlock relies on the site's designers providing a unique URL
 for a registered username. To determine if a username is available,
 Sherlock queries that URL, and uses to response to understand if
 there is a claimed username already there.
 .
 Currently, the tool is capable of locating users on more than 300 social
 networks: Apple Developer, Arduino, Docker Hub, GitHub, GitLab, Facebook,
 BitCoinForum, CNET, IFTTT, Instagram, PlayStore PyPI, Scribd, Telegram,
 TikTok, Tinder etc.