HOSTS
TOOLS:
https://browserleaks.com/
https://dnschecker.org/
https://ns.tools/
https://observatory.mozilla.org/
https://urlscan.io/
https://iamroot.tech/
https://crt.sh/
https://dnsdumpster.com/
https://bash.ws/
https://www.findip-address.com/
https://http.dev/
https://httpheader.io/
https://tools.keycdn.com/
https://gsuite.tools/
https://nikto.online/
https://nmap.online/
https://nmap.org/
https://sqlmap.org/
https://github.com/sullo/nikto
https://github.com/jekyc/wig
https://www.whatweb.net/
https://wapiti-scanner.github.io/
https://github.com/wpscanteam/wpscan
https://github.com/Dionach/CMSmap
SEARCH ENGINES:
https://www.shodan.io/
https://search.censys.io/
https://www.zoomeye.hk/
https://viz.greynoise.io/
REPORTS:
VULNWEB.COM