https://healdb.tech/blog/elevate.html
Elevate is a vertical domain discovery tool you can use to discover other domains owned by a given company. Domains owned by Reddit are discovered with the tool below.
Install requirements with the command pip install -r requirements.txt
API keys from WHOXY and whoisXML are also needed, but the accounts are free to sign up for. Place these keys in the config.txt file. Sign up for these accounts here - https://www.whoxy.com/ and here - https://www.whoisxmlapi.com/
Elevate takes in a partial organization name, an email address, or a domain name, and finds all other domain names owned by that organization.
Sample use:
python elevate.py -o "reddit_domains.txt" -d "reddit.com" -e "domainadmin@reddit.com"
Search with only a domain name:
python elevate.py -o "reddit_domains.txt" -d "reddit.com"
Search with only an email address:
python elevate.py -o "reddit_domains.txt" -e "domainadmin@reddit.com"
If you only know the Organization's name, such as 'Uber', you can search the ASN registry for a match. Searching with only a partial name:
python elevate.py -o "reddit_domains.txt" -n "uber"
You will then be prompted to select the ASN names that closely match your search term. Elevate will then search for domains registered to that company name.