EasyCaptchaCore (nuget): An efficient and secured alternative of Google reCAPTCHA for ASP.NET Core and ASP.NET MVC which has been written with C#. If you are being tired of struggling with Google reCAPTCHA and also worried about performance and banning issue with it, just take a minute to go through it for your consideration. I am certain that you won't be regret.
Keywords: CAPTCHA|reCAPTCHA