CRTER is a command-line tool for fetching subdomains using the CRT.SH certificate search engine. It allows you to provide a list of domain names or fully-qualified domain names (FQDNs) and retrieve the associated subdomains. The tool fetches the subdomains from CRT.SH and saves them to an output file.
To install CRTER, follow these steps:
Make sure you have Go installed on your system. If not, you can download it from the official website: https://golang.org/dl/ or u can use Arsenal hehe.
git clone https://github.com/Micro0x00/CRTER/
cd CRTER
go build CRTER.go
Replace <domainlist> with the path to your domain list file and <output> with the desired output file name.
./CERTER domainlist.txt myoutput.txt