Several types of captcha to protect your site in one easy to use plugin.
The answer to this question depends on what you are going to use the captcha for. Hidden captcha has no usability drawbacks while reCaptcha provides much better protection. Simple Captcha lies somewhere in the middle.
It means that a captcha will not be added to the corresponding page.
These are numeric values which Easy Captcha uses as a minimum and maximum amount of time (in seconds) a human visitor should spend to complete a form.
When this option is set a captcha will not be used for known users.
This field allows to display an invitation to enter a captcha value. It may be blank.
These settings are similar. Please see their descriptions in the Simple Captcha FAQ section.
Private and Public keys are required fields. They are used to encode and transfer captcha values to Google API.
There are several possible reasons.
Yes. Please use the Theme and Language lists, found on the reCaptcha setting page, to customize how the captcha window looks.
Yes. Easy Captcha installation procedure adds one table and several tens of options to the wp_options table. When Easy Captcha is being uninstalled, the uninstallation routine removes the new table and options.
Yes. Easy Captcha installation routine adds one table and several tens of options to the wp_options table. When Easy Captcha is being uninstalled, the uninstallation routine removes the new table and options.
We plan to add a new "Skip for logged in users" option to Hidden Captcha. We plan to add a new cookie check feature to Hidden Captcha. We plan to optimize the Hidden Captcha's client side part. We plan to add a new type of hidden captcha optimized for the Login and Registration pages.
A CAPTCHA is a type of challenge-response test used in computing as an attempt to ensure that the response is generated by a human being. A CAPTCHA is a test which is designed to be difficult for a computer to solve, but easy for a human.
The term "CAPTCHA" was coined in 2000 by Luis von Ahn, Manuel Blum, Nicholas J. Hopper, and John Langford (all of Carnegie Mellon University). CAPTCHA is an acronym based on the word "capture" and standing for "Completely Automated Public Turing test to tell Computers and Humans Apart"
A common type of CAPTCHA requires the user to type letters and/or digits from a distorted image that appears on the screen. Different types of CAPTCHA can be used to minimize automated posting to blogs, forums and wikis, whether as a result of commercial promotion, or harassment and vandalism.