What’s the Best Way to Integrate Google reCAPTCHA with Odoo Forms in v16/v17?

[vihanrichard]

Hi everyone,
I’m currently configuring Odoo 16 for a client’s website and portal, and one of our top priorities is improving form security—especially for login, sign-up, contact us, and newsletter subscription forms. While Odoo provides basic CAPTCHA options in some modules, we're looking to integrate Google reCAPTCHA (either v2 Checkbox or v3 Invisible) for more effective bot protection and spam filtering.
After some research, I noticed there are community modules available for Odoo reCAPTCHA, but not all seem actively maintained or compatible with the latest versions like Odoo 17. Has anyone here implemented Google reCAPTCHA in Odoo for both frontend and backend forms?
Specifically, I’m looking for input on:

• A reliable Odoo reCAPTCHA module that supports multi-website setups
  
• Best practices for embedding reCAPTCHA in custom forms or extended models (e.g., custom lead forms, job application forms)
  
• Performance impact and UX considerations when using Google reCAPTCHA v3 versus v2
  
• How to ensure compatibility with Odoo Website Builder, Odoo Portal, and Contact/Lead forms
  
• Backend setup steps: Where and how should the reCAPTCHA keys be added securely?
  

Additionally, if you’ve handled rate-limiting, brute-force protection, or added security layers through Odoo settings (e.g., password policies, IP blacklisting), I’d love to hear your complete strategy.
The goal is to ensure that our forms are not only secure from automated submissions but also remain user-friendly. It would be helpful to get insights on any third-party or enterprise-level Odoo CAPTCHA modules that offer more granular settings or native Google reCAPTCHA integration.
Thanks in advance to anyone who can share their implementation stack or code examples!