Integrate reCaptcha V2 in ASP.NET Applications (Web Forms / MVC / Core)

If you are running any website that makes use of Google's reCAPTCHA for keeping bots and automated scripts away, you are probably aware that version 1.0 is being phased out. That means you need to integrate version 2.0 into your websites. To that end this article explains how to do just that. I use ASP.NET MVC project to illustrate the integration process but the same applies even for ASP.NET Web Forms and ASP.NET Core applications.

http://www.binaryintellect.net/articles/3242def1-2ec3-484f-84dd-2846f616ee6e.aspx