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Turbolist3r Tool Web Application Subdomain Discover


Purpose: Subdomain discovery tool

Turbolist3r is a fork of the sublist3r subdomain discovery tool. In addition to the original OSINT capabilties of sublist3r, turbolist3r automates some analysis of the results, with a focus on subdomain takeover. Turbolist3r queries public DNS servers for each discovered subdomain. If the subdomain exists (i.e. the resolver replied with an address), the answer is categorized as CNAME or A record. By examining A records, it is possible to discover potential penetration testing targets for a given domain. Likewise, the process of looking for subdomain takeovers is simple; view the discovered CNAME records and investigate any that point to applicable cloud services.


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Step 1: git clone https://github.com/fleetcaptain/Turbolist3r

Step 2: cd Turbolist3r

Step 3: pip install requirements.txt

Step 4: python turbolist3r.py -d


python turbolist3r.py -d vulnweb.com

Commands And Usages




Domain name to enumerate subdomains of



Enable the subbrute bruteforce module



Scan the found subdomains against specific tcp ports



Enable the verbose mode and display results in realtime



Number of threads to use for subbrute bruteforce



Specify a comma-separated list of search engines



Save discovered domain names to specified text file



show the help message and exit



Do reverse DNS analysis and output results



Save reverse DNS analysis to specified file



Read domains from specified file, and use them for analysis



Print debug information during the analysis module (-a). Prints mostly raw DNS data, familarity with the DIG Linux DNS utility and it's output is helpful to interpret the debug output



File with DNS servers to populate as resolvers. File must have only one server IP address per line and only IP addresses are accepted



Only print found domains and/or CNAME mappings. Note errors may be printed as well