In this article we teaches you the step by step process that how we can add the ReCAPTCHA provided by Google in Asp.net along with it’s Validation. As malware protection is very much needed in our webpages , So recaptcha is very much useful for this. A CAPTCHA is a program that protects websites against bots by generating and grading tests that humans can pass but current computer programs cannot.
Description :- The concept is simple as mentioned below.
Step 1 : Get Public and Private Key from Google Recaptcha by Signing with your gmail account.
Step 2 : Copy the Private and Public key Somewhere in the notepad.
Step 3 : Add Google Recaptcha’s .dll file. Download it from the below link:-
Step 4 : Add The Directive for the Google recaptcha in .aspx file.
Step 5 : Add the Recaptcha code where you want to place the google recaptcha.
Step 6 : Enter the Private and Public Key Copied in Step 2.
Step 7 : Apply validation on Recaptcha. For wrong input, display the error message.
Watch out this video for Full tutorial:-
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