Information Gathering

Passive

• Whois

• VirusTotal

• Project Sonar

• https://censys.io

• https://crt.sh

• Netcraft

• WayBack machine

Active

• Whatweb

• Wappalyzer Exttension

• wafwoof (WAF)

• Aquatone

• EyeWitness

• Zonetransfer (https://hackertarget.com/zone-transfer/)

• Crawling web (ZAP)