If you have never seen one before, captchas are parts of a website where you sometimes need to type in a word to prove you're a human. Captchas are a great way to prevent spam activity on your Joomla 2.5 website because most "bots" that attempt to post spam cannot read the letters contained in the captcha image. In this tutorial, we're going to walk you through the steps for setting up ReCaptcha, a popular captcha system, in Joomla 2.5.

To enable ReCaptcha for Joomla 2.5:

  1. Log into your Joomla 2.5 Dashboard
  2. In the top menu, hover over Site and click Global Configuration
  3. Under the Site tab, set Default Captcha to Captcha ReCaptcha, and then click Save.
    in-site-settings-set-defatul-captcha-to-recaptcha

    ReCaptcha requires a "key" before it will work. If you test the registration form on your site before entering this key, you will get a similar error message:
    recaptcha-plugin-needs-a-public-key
    ReCaptcha plugin needs a public key to be set in its parameters. Please contact a site administrator.

  4. To obtain a Recaptcha key, you need to have a Google account. If you don't already have one, sign up for a Google account and then visit https://www.google.com/recaptcha/admin/create (be sure that you're logged into Google). Enter your domain name and then click Create Key. You will then be given both a Public Key and a Private Key, which will look similar to: 6LfnOM47AAAAAB7SSA7fbjH7e1q95htZb34pA1T9
  5. Now that we have our ReCaptcha keys, we'll need to configure Joomla 2.5 with them. In your Joomla 2.5 Dashboard, hover over Extensions (in the top menu) and then click Plug-in Manager
  6. Use the Filter feature to search for captcha, and then click on the Captcha - ReCaptcha link:
    find-and-click-captcha-recaptcha
  7. Enter your Public and Private Key, and then click Save
    enter-keys-and-click-save
  8. Congratulations, you have now enabled ReCaptcha for Joomla 2.5! When you access your user registration page, you will now see a captcha similar to the following screenshot:
    joomla2.5-captcha-is-now-enabled
Continued Education in Course Joomla 2.5
You are viewing Section 1: 301: How to enable ReCaptcha in Joomla 2.5
Section 2: 302: Joomla 2.5 - disable mootools
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n/a Points
2014-05-21 3:43 am

Unfortunetly my captcha do not accept the code?

What can be the problem?

Staff
9,384 Points
2014-05-21 8:15 am
Could you clarify what you are referring to? Are you referring to your API key or entering in the captcha itself?
n/a Points
2014-07-20 10:20 am
its great
n/a Points
2014-07-28 11:05 am
Be sure that it also reflects the latest version of Joomla!
n/a Points
2014-10-22 12:24 pm

Thanks, I followed all the 6 step , step 7, I contact Google to get account for my domain web, they sent me Public code and private code,

I filled codes in the drop down "basic option" in joomla2.9 and save. 

Back to joomla, view site no more red remark.....oK 

Staff
17,716 Points
2014-10-22 1:04 pm
Hello Thavorn,

Sorry to hear you're having problem with the Recaptcha. Make sure that you cleared your browser cache before you test it. It would also help if you could please provide the URL for your site. The information that you have provided is not sufficient for us to troubleshoot the problem.

Please provide us more info and we'll look into the issue further.

Regards,
Arnel C.
n/a Points
2014-10-24 12:10 pm

I followed your instruction from 1-7 complete, in contact, contact form but in step 8 they do not show captcha... THANKS

Staff
20,113 Points
2014-10-24 12:34 pm
Hello Thavorn,

I created a fresh install of Joomla 2.5 and followed the instructions. When I got to step 8 the captcha was visible on my screen. Be sure to check your keys and ensure they are in the right place (private in private and public in public). Other than that, it should work fine.

Kindest Regards,
Scott M
n/a Points
2014-11-05 5:40 pm

I got this error message on the registration form and I used my correct url. Please help

 

URL of your website is incorrect, please check the URL of your website at www.keycaptcha.com

Staff
17,716 Points
2014-11-05 5:59 pm
Hello Steve,

Sorry you're having problems with Recaptcha. However, we would need more information in order to determine what's happening. What URL did you use? Did you go check your URL at the site they asked?

Also, the article above is for ReCaptcha not Keycaptcha - that's a totally different product. Are you sure you installed Recaptcha?

Regards,
Arnel C.

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