This tool can check all taken and available TLDs for your domain/keyword out of top 50 most popular TLDs
As a domainer, I often think “how many other extensions my domain is taken in?”.
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My approach makes sense because the more extensions a domain is taken, the more demand it has in the market. So, I have created a free tool for all domainers that can check all available and taken domain extensions for a particular domain/keyword.