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:

    reCAPTCHA v1 themes

    V2

    The newer V2 reCAPTCHA looks like this:

    animated reCAPTCHA checkbox widget

     
  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:

    animated reCAPTCHA checkbox widget

    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:

    CAPTCHA challenge

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

  2. Accessibility

    ReCAPTCHA works with major screen readers such as ChromeVox, JAWS, NVDA and VoiceOver. ReCAPTCHA will alert screen readers of status changes, such as when the reCAPTCHA verification challenge is complete. The status can also be found by looking for the heading titled “recaptcha status” in the “recaptcha widget” section of the page. See ReCAPTCHA ARIA Status Messages for more information.

    Please use the following steps to solve an audio challenge:

    1. If you are presented with a visual challenge, locate and click on the Get an audio challenge button.

    2. You will be presented with one of two versions of the audio challenge depending on whether you’re using a mobile device.
      audio challenge with the focus set on the PLAY buttonmobile audio challenge with the focus set on the audio controls

    3. Press PLAY and enter the numbers you hear in the text input box located after the PLAY button or audio control. If your focus isn't automatically set on the text input box after pressing the PLAY button, tab to proceed to it. When you’re done entering the numbers from the audio, press ENTER or click on the “Verify” button to submit your answer.

    4. If your answer is incorrect, you will be presented with another audio challenge.

      audio challenge after a failed attempt, the focus is set on the error messagemobile audio challenge after a failed attempt, the focus is set on the error message

    5. If your answer is correct, the audio challenge will close and the reCAPTCHA checkbox will become checked. ReCAPTCHA will also notify the screen reader of the successful verification.

      reCAPTCHA checkbox checked after successfully completing a verification challenge

      Please note that the verification will expire after some time and you will need to start over if this occurs. You will be notified if the verification expires. 

      reCAPTCHA checkbox unchecked after the verification expires

    ​Tips

    • If the audio doesn’t play, try downloading the audio by locating and clicking on the Alternatively, download audio as MP3 link.

    • While in the text input box, you can press the “R” button to replay the audio from the beginning

    • To get a different audio challenge, locate and press the Get a new challengebutton.

    • The reCAPTCHA verification expires after a certain amount of time so it is best to complete the reCAPTCHA verification last on a website you are accessing.

    • Some screen readers may have difficulties getting into forms mode, if this happens, please use your screen reader’s functionality to force forms mode.

    ReCAPTCHA ARIA Status Messages

    Status message

    Detailed description

    Recaptcha requires verification

    The initial state, reCAPTCHA verification is required to proceed on this website. Click the checkbox to get a verification challenge.

    Opening verification challenge

    The checkbox has been clicked and a challenge is loading. You are instantly verified if the status changes to “You are verified”. Otherwise, you are required to complete a verification challenge.

    Verification challenge expired, check the checkbox again for a new challenge

    The verification challenge expired due to timeout or inactivity. Click the checkbox again for a new challenge.

    You are verified

    You have been verified. You can now proceed on the website.

    Verification expired, check the checkbox again for a new challenge

    The verification expired due to timeout or inactivity. Click the checkbox again for a new challenge.

  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. reCAPTCHA cannot display correctly on my Internet Explorer, how to fix it?

    reCAPTCHA cannot display correctly if the IE Compatibility View is enabled for google.com. We suggest that you remove google.com from your list of sites that have Compatibility View enabled.

    Turn off Compatibility view

    • IE 10
      1. In Internet Explorer, press the Alt key to display the Menu bar, or press and hold the address bar and select Menu bar.
      2. Click Tools and select Compatibility View settings.
      3. Select google.com under "Websites you've added to Compatibility View."
      4. Click Remove.
    • IE 9
      1. In Internet Explorer, press the Alt key to display the Menu bar, or press and hold the address bar and select Menu bar.
      2. Click Tools and select Compatibility View settings.
      3. Select google.com under "Websites you've added to Compatibility View."
      4. Click Remove.
    • IE 8
      1. In Internet Explorer, open the Tools menu at the top and select Compatibility View Settings.
      2. Select google.com under "Websites you've added to Compatibility View."
      3. Click Remove.

    If you don't see google.com listed, or if you still see a warning about Compatibility View after following the steps above, make sure that your computer has the latest Windows updates. See Microsoft’s instructions for getting Window’s updates.

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.