The “Completely Automated Public Turing Test to Tell Computers and Humans Apart” technology, widely known as CAPTCHA, is a challenge-response test used in computing to verify that application responses are not computer generated. CAPTCHA is designed in a way that prevents automated programs or bots from interacting with web forms and applications meant for humans. A web form or application that contains CAPTCHA generates and evaluates a test that only a human can pass. CAPTCHA images commonly display distorted letters or numbers because current computer programs cannot read them.
CAPTCHAs can be applied for various security purposes including;
- prevention of comment spam in blogs
- protection of website registrations
- protection of email addresses from spammers
- prevention of skewed poll results
- prevention of search engine bots from reading you website
- protection from attacks on password systems
- protection from email worms and spam
Manually coding a secure CAPTCHA program is difficult and time consuming. Caspio Bridge has a free, built-in feature that allows users to instantly apply CAPTCHA to any of their submission forms, search forms or authentication pages. The CAPTCHA is highly customizable with 5 difficulty settings, multiple options for length, and the ability to use only digits. To make the forms accessible to the visually impaired, there is also an option to enable audio CAPTCHA, which will sound out the letters or numbers.
Try it yourself:
Click the CAPTCHA image to refresh a new one or click the handicap icon to hear an audio version.
To apply CAPTCHA in Caspio Bridge, open the DataPage wizard to configure your form’s fields and click on the insert icon to select CAPTCHA.
CAPTCHA will be automatically added to your form and can be configured on the right. Like other DataPage Elements, it can be moved up or down in the form layout, depending on your preference. CAPTCHA values are not stored in a table so there is no need to crate a table field for them.
CAPTCHA is just one example of Caspio’s built-in features. There are also multiple layers in the platform designed to ensure that data and applications are secured and protected. Open a free trial to add CAPTCHA to any app in minutes.[/fusion_builder_column][/fusion_builder_row][/fusion_builder_container]
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