What are the best techniques to secure your website that you developed?

Use secure development practices, review the application as per owasp to protect the application.

use NIST/DISA hardening guides to harden the DB, OS and web server.

Get the whole setup pentested by Expert

Hello,

Follow These Steps will help you:-

1. Keep platforms and scripts up-to-date.

2. Install security plugins, when possible.

3. Use HTTPS.

4. Use parameterized queries.

5. Use CSP.

6. Make sure your passwords are secure.

7. Lock down your directory and file permissions

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* Update, Update, Update!

* Passwords

* One Site = One Container

* Sensible User Access

* Change the Default CMS Settings!

* Extension Selection

* Backups

* Server Configuration Files

* Install SSL

* File Permissions

Note:- Don't disclose all these things to the unknown person.

Regards.