Free cyber security tools

Log4shell:

This is login bypass vernability 

Content security policy

Here are Free cyber security tools available.

Check content security policy of any website.

csp-evaluator withgoogle

Find related domains

Below website is used to search all the domain related to a companey or organisation.

Search https://crt.sh/?O=organization+name

Example: Google Inc 

https://crt.sh/?O=Google+inc

crt.sh

Find domain details 

Know a,aa,cname,srv,txt,   of a domain by dig command

toolbox.googleapps.com