How to search within the list of already registered domains?

If you are monitoring your trademark or if you want to know which domains are using the word “quantum”: Google is useless. There are a couple of tools for this:

• With DNSlytics you can search up to a 15 characters word
• With DNpedia you have access to the full list without limitation

By the end of 2019: the number of domains registered in the world could go over 340 millions. That is: 1 domain per 20 person on earth!