Google Dorking
site:<domain> ext:pdf
Use of advanced Google operators to find sensitive information on websites.
To search for sensitive files, open directories, configurations, and other non-indexed pages that could be exposed. Google Dorks is a manual OSINT technique that can reveal critical information without touching the target.
If the target has no indexed content or if Google blocks you with captchas. Also, if the engagement requires only structured sources, prefer automated tools.