domain scanner

Hello, dear community! Where can I find a list of taken domain names? The thing is that I'd like to research my competitors by keywords, which consist of the domain name, and take a look at these domains as a result :') Thank you and have a nice day.

Hey guys, Got really bored today and decided to code a domain scanner. If you are familiar with SEO, then you will know that 3 character domains are very rare, can have a ton of traffic, are easiest to remember and access. This script will scan for random 3-4 character domains and will save...