crt.sh

az7rb crt.sh is a bash script that automates subdomain enumeration by querying and parsing output from the crt.sh certificate transparency log search engine. The script interacts with the crt.sh website, which indexes SSL/TLS certificate data from public certificate transparency logs. By querying this data, the script can discover subdomains associated with a target domain that have had certificates issued for them. Key capabilities: - Queries the crt.sh certificate transparency database for a given domain - Parses and filters the raw output returned by crt.sh - Saves enumerated subdomains to output files for later use - Provides a command-line interface for quick, repeatable subdomain discovery The tool is written as a bash script, making it lightweight and easy to run on Linux/Unix systems without additional dependencies beyond standard shell utilities. It is intended for use in reconnaissance phases of security assessments, bug bounty hunting, and attack surface mapping. Output is saved to text files, as demonstrated by the included sample output directory in the repository. The script simplifies what would otherwise require manual querying and parsing of the crt.sh web interface.