Hello Everyone, While doing some bug-bounty research today, I collected subdomains first. But after then some of the subdomains were not accessible and it was too hard to check them one by one. I couldn’t find a tool to check that collected subdomains are accessible and I wrote a small script. With that tool, if you collected some subdomains, you will be able to check their accessibility. I’m sharing it in the hope that it will help you. About Subchecker: Subchecker is a python tool designed ...