ReCAPTCHA v2 Website Integration

I need ReCAPTCHA v2 added to my website so that every form submission is protected without disrupting the user experience. The site is already live; I just haven’t hooked in Google’s keys or written the validation logic yet. You’ll handle the full front- and back-end integration: adding the client-side widget, verifying the token server-side, and returning meaningful error messages if the check fails. Once it’s wired up, I’d like you to test it thoroughly in all major browsers to be sure legitimate users can still submit while bots are blocked. Deliverables • Cleanly integrated ReCAPTCHA v2 on the specified pages • Server-side verification code with clear comments • Brief note explaining where to update site keys in the future Please let me know which language or framework you prefer so I can give you access to the right files and environment.