It's an useful tool. However, as a commercial product, I don't see it as successful. Reason why is nobody stays up at night worrying about whether their links

It's an useful tool. However, as a commercial product, I don't see it as successful. Reason why is nobody stays up at night worrying about whether their links still work. (don't get me wrong, it's BAD if they don't work. but it's not what they're worry about at night). They worry if their site goes down for a long period of time. They worry about DDOs attacks. They worry about search engine penalties. But rarely do they worry about links not working. Why does this matter? Because that means people will rarely seek for your product. You will need to do a lot of convincing/educating potential users.