How to Add a GDPR Compliant CAPTCHA to WordPress Forms

Antonia Zivcic

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The introduction of the General Data Protection Regulation (GDPR) in 2018 has created a need for website owners to ensure their websites are compliant with the new regulations. An important measure for GDPR compliance is the use of Captchas on all forms that collect user data. This article will guide you step-by-step through how to add a GDPR-compliant Captcha to WordPress forms.

Adding a GDPR-compliant Captcha to WordPress forms is a crucial step towards ensuring your website is compliant with GDPR regulations. Fortunately, this can be easily achieved with the WP Login Lockdown plugin.



The General Data Protection Regulation (GDPR) has greatly impacted how businesses collect, store and use customer data. As a result, many companies have implemented new security measures to ensure they comply with the regulation. One such measure is the use of CAPTCHAs, which are designed to distinguish between humans and bots attempting to access a website or submit information.

CAPTCHA stands for “Completely Automated Public Turing Test to tell Computers and Humans Apart.” These tests require users to complete a challenge that can only be solved by a human, such as identifying images or typing out distorted text. While these tests can help prevent automated attacks on websites and protect user data, they may also pose potential GDPR compliance issues. Under GDPR regulations, businesses must obtain clear consent from users before collecting their data.

What is a CAPTCHA?

A CAPTCHA is a security feature that is commonly used on websites to distinguish between human users and automated bots. The acronym stands for “Completely Automated Public Turing Test to Tell Computers and Humans Apart”. This technology was developed in the late 1990s by researchers at Carnegie Mellon University to prevent spam and other automated attacks.

The most common form of CAPTCHA involves displaying distorted letters, numbers, or images that are difficult for bots to read but easy for humans. Users are then required to correctly input the characters to prove they are not a bot. Some CAPTCHAs also include audio challenges for visually impaired users or those who have difficulty reading distorted text.

While effective at preventing bots from accessing websites, CAPTCHAs can be frustrating for users who struggle with the challenges presented.

Benefits of Using CAPTCHA

Benefits of Using CAPTCHA

As the internet continues to evolve, so too do the threats that come with it. One of the most common and frustrating issues for website owners is spam, which can be caused by bots or automated programs. Fortunately, there is a simple yet effective solution to this problem: CAPTCHA.

CAPTCHA (Completely Automated Public Turing test to tell Computers and Humans Apart) is a security measure that requires users to prove they are human by completing a task that only humans can do. This usually involves entering characters from an image or solving a puzzle. While this may seem like an inconvenience for users, it has many benefits for website owners.

Firstly, CAPTCHA helps prevent spam and fraudulent activity on websites. Bots and automated programs cannot pass the CAPTCHA test, meaning they cannot create fake accounts or send unsolicited messages.

Step-by-Step Guide to Adding CAPTCHA

WordPress is one of the most popular content management systems available today, with millions of websites using it to power their online presence. However, with its popularity comes a drawback: spam bots. These automated programs can fill your website forms with unwanted messages and even cause site crashes. To prevent this from happening, you need to add a CAPTCHA system to your WordPress forms.

The first step in adding a CAPTCHA system is selecting the right plugin for your website. There are several options available, each providing different features and levels of security. Once you have selected the plugin that best suits your needs, install and activate it on your website. After installation, configure the settings based on your preferences.


In conclusion, incorporating a GDPR-compliant Captcha into WordPress forms is an essential step in protecting user privacy and data. It ensures that your website follows the legal requirements while also helping to keep malicious bots away from your forms. If you are using a popular form plugin, chances are there is a setting to add one quickly and easily. Otherwise, there are several Captcha plugins available which require minimal setup.

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