Definition updated on November 2023

What is ReCaptcha?

A free service called reCAPTCHA guards against spam and abuse on your website. ReCAPTCHA combines adaptive CAPTCHAs and a sophisticated risk analysis engine to prevent automated software from abusing your website. It accomplishes this while facilitating easy passage for your legitimate users. More than only spam prevention is available with reCAPTCHA. Every time one of our CAPTCHAs is completed, human labor makes it possible to digitize text, annotate photos, and create datasets for machine learning. As a result, books are preserved, maps are improved, and challenging AI issues are resolved.

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