Finding a domain hack is easy and free. Knowing whether you can actually get it — and whether anyone would pay you for it — is the part that costs money to learn.
The problem. A checker says sponsor.bar is available. It isn't — the registry has it reserved and won't sell it at any price. canivibecode.it was free until someone took it four days after the brand launched. And a hack nobody will buy is worth exactly its renewal fee.
Obtainable?registry-reserved, premium-tiered, or genuinely free
Already sniped?who registered it, when, and how fast after launch
Who'd buy it?does the founder already defend their namespace
Senior claim?trademark holders sitting on the .com
Worth it?a number, based on what these actually sell for