Using tools to find the domain registration info (WHOIS lookup) can sometimes lead to the email used by the technical contact. C. Specialized Directories
Add -inurl:html or filetype:pdf to target specific document types. For instance: 1 Carlos -hotmail.com -aol.com -yahoo.com -gmail.com
What are you targeting (e.g., LinkedIn, GitHub, general web)? Using tools to find the domain registration info
The result is a list of web pages, documents, or professional directories that mention a "Carlos" associated with a different type of email address. Practical Applications of This Search Technique 1 Carlos -hotmail.com -aol.com -yahoo.com -gmail.com