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. How can I distinguish between different versions of reCAPTCHA?

    There currently exist two versions of reCAPTCHA, V1 and V2.

    V1

    reCAPTCHA V1 can take many forms, but here are the most common ones:

    V2

    The newer V2 reCAPTCHA looks like this:

     
  3. 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.

  4. Security Help

    If you were directed to here from the reCAPTCHA widget, you would have seen a message that said "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."

    Please take a look at the reCAPTCHA widget in this link. If it shows a normal CAPTCHA (letters, numbers, or images), then your computer and network are safe, but the site you came from could have a configuration problem. Please contact them directly so they can get it fixed. If it still shows the "We're sorry, but your computer..." message, then please try the troubleshooting tips at our unusual traffic help page and if you still think that you are being blocked in error, please email us at support@recaptcha.net and tell us your dotted-decimal IP address so that we can investigate. You can obtain your IP address from Whatismyip.org.

Using reCAPTCHA V1

  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.

Using reCAPTCHA V2

  1. How do I use reCAPTCHA?

    Just click the checkbox:

    If you see a green checkmark, congratulations! You’ve passed our robot test (yes, it’s that easy). You can carry on with what you were doing.

    Sometimes we need some extra info from you to make sure you’re human and not a robot, so we ask you to solve a challenge:

    Simply follow the on-screen instructions to solve the puzzle and then carry on with your task.

  2. Accessibility

    We want to make sure that reCAPTCHA doesn’t prevent anyone from entering a website. If you can’t solve a visual CAPTCHA, please use the following steps to finish an audio challenge:

    1. Click the audio button to get an audio challenge.

    2. Click the PLAY button or the download button to start listening.

    3. Type the numbers that you hear, press Enter or click the Verify button to submit.

    4. The “I’m not a robot” checkbox will be checked if your answers are correct.

      Or else, you will need to finish a new audio challenge if the typed numbers are incorrect.

    5. If you have already been verified with the right answer, but didn’t leave the page that hosted the reCAPTCHA widget for a long time, the widget will remind you that the previous session has expired and you will need to start over.

    As you may know, there are a number of different screen readers(ChromeVox, NVDA etc.) to assist vision impaired people on web browsing, reCAPTCHA makes it easy for screenreader users to quickly check the challenge state and will keep improving the accessibility.

  3. This CAPTCHA is too hard

    Don’t worry. Some CAPTCHAs are hard. Just click the reload button next to the image to get another one.
  4. My computer is sending automated queries

    Our unusual traffic help page describes what to do if you see this message:

    "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."

Help for reCAPTCHA users

  1. How to solve a Google Earth View CAPTCHA?

    Google Earth View CAPTCHA shows the name of a place on an image from Google Earth. Type the text shown on the image and click the “Verify” button to solve. Additionally, you can click the “Explore in Google Maps” link below the image to explore that place in a new browser tab.

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. FAQs

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