About reCAPTCHA

1. What is reCAPTCHA?

   reCAPTCHA is a free service from Google that helps protect websites from spam and abuse. A “CAPTCHA” is a test to tell human and bots apart. It is easy for humans to solve, but hard for “bots” and other malicious software to figure out. By adding reCAPTCHA to a site, you can block automated software while helping your welcome users to enter with ease. Try it out at http://recaptcha.google.com/recaptcha/demo/.

   
   To learn more about reCAPTCHA, visit our official website or our technical documentation site.

2. Helping everyone, everywhere, one CAPTCHA at a time

   CAPTCHAs play an important role in keeping the internet spam-free and making everyone’s experience a little bit better.

   reCAPTCHA also makes positive use of the human effort spent in solving CAPTCHAs by using the solutions to digitize text, annotate images, and build machine-learning datasets. This in turn helps preserve books, improve maps, and solve hard AI problems.

Using reCAPTCHA

1. How do I solve reCAPTCHA?

   Type what you see in the CAPTCHA image, whether it's a number, a word, or several words.

   Accessibility

   reCAPTCHA provides a means for visually-challenged users to solve CAPTCHAs by clicking on the audio button. Upon doing so, a set of numbers will be read out, that the user has to enter to pass the challenge.

2. I can’t solve this CAPTCHA!

   Don’t worry. Just click the reload button to get a new CAPTCHA.

3. The instructions read “Enter the two words,” but I only see a number

   Type what you see in the CAPTCHA image, whether it's a number, a word, or several words.

4. My computer is sending automated queries

   If you see a message that says "We're sorry, but your computer or network may be sending automated queries. To protect our users, we can't process your request right now.":

   1. Open this reCAPTCHA page.

   2. If you see a normal CAPTCHA (letters or numbers) your computer and network are safe. The site you came from could have a configuration problem. Try to let them know about it.

   3. If you still see the "We're sorry, but your computer..." message, then there may be something wrong. See the tips at our unusual traffic help page.

Help for website owners

1. How can I integrate reCAPTCHA in my site?

   Using reCAPTCHA in your site is very easy. First, register your site here and then follow the short on screen instructions.

2. Technical troubleshooting

   If you are having any technical problems in your site, please refer to our specific technical troubleshooting instructions. If you don’t see your problem listed there, try our support forum.

3. FAQs

   If you have further questions about integrating reCAPTCHA at your site, check our Frequently Asked Questions.