Server

1. Shodan
2. Onyphe
3. Censys
4. IVRE

Dorks

1. Google

WiFi Networks

1. Wigle

Code Search

1. grep.app
2. Searchcode
3. PublicWWW

Threat Intelligence

1. BinaryEdge
2. GreyNoise
3. FOFA
4. ZoomEye
5. LeakIX
6. Socradar
7. URLScan
8. Pulsedive
9. ThreatMiner
10. Spyse
11. SecurityTrails
12. Rapid7
13. RiskIQ

Web Tools

1. ⚡ Interactive Online Web 🛠️ Tools

Email Addresses

1. Hunter

OSINT

1. IntelX
2. SpiderFoot
3. Maltego

Attack Surface

1. Netlas
2. FullHunt
3. BinaryEdge
4. NexVision

Certificate Search

1. crt.sh
2. CertSpotter

Vulnerabilities & Data Breaches

1. Vulners (Vulnerabilities)
2. Have I Been Pwned (Data Breaches)

Web Security

1. Netcraft

DNS Reconnaissance

1. DNSDumpster