Ever heard of reCaptcha? So what is it?
reCaptcha, a service of Google is a free CAPTCHA tool to protect from spams. CAPTCHA means Completely Automated Public Turing test to tell Computers and Humans Apart. So you can protect your stuffs from the internet bots while allowing human to access the resources. While a bot accesses your resource, it will be rapidly fast and is obvious of being misused.
reCAPTCHA: The FREE anti-bot service that helps digitize books. – As they say.
Then why Google? Why not the other companies with the same service.
reCaptcha from Google is actually the snippets from the old physical books. They scan the book and digitalize the book. The other technology behind is OCR(Optical Character Recognition). In OCR the digitalized image is tried to read using lots of advanced algorithm via computer programs. And the old books ever fails to be read properly.
If you’ve got an WordPress, Joomla, Drupal or Mediawiki, then there’s a plugin to easily embed reCaptcha on your website. They have apis to download and easily communicate with their server for variety of programming platforms.
You can learn more here: Learn More
For embedding the reCaptcha in your website, there are few easy steps.
1. First you need to sign up for their API keys, which is absolutely free. Sign Up here.
And private key is to be kept private. It is used to communicate between your server and reCaptcha server for validation purpose.
2. Now setup your website to work with reCaptcha. Refer to the instruction here.
Here’s a bit of snippet for directly using if you don’t want to look at in-depth of reCaptcha rendering.
If you are coding your website, there’s a platform specific class or library. You’ll be find it easy to workout. For customization, refer to this link.
reCaptcha comes with four built-in look-and-feel that will perfectly match with the skin. Your site will look more catchy than ever.