ReCAPTCHA v3 human detector removes jumbled text and image clicks

Google has released the newest version of its take on CAPTCHA, the puzzle that humans need to solve on some pages to tell a website they're not a bot.

Google this week announced an update to reCAPTCHA, a free service that protects websites from spam and abuse. While reCAPTCHA v1 required reading and inputting text, and v2 mostly just had a box to be checked (unless it was suspicious, at which point it would give you an image recognition challenge).

Google, which until now used to prompt users to confirm whether they were robots is now rolling out reCAPTCHA v3, which is a new system that does not require any user interaction any more - similar to the Invisible reCAPTCHA it rolled out for Android and mobile past year. Purposefully designed. And actively aware. reCAPTCHA knows when to be easy on people and hard on bots. This allowed Google to only require about half of users having to solve a puzzle.

"In reCAPTCHA v3, we are introducing a new concept called "Action"-a tag that you can use to define the key steps of your user journey and enable reCAPTCHA to run its risk analysis in context".

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Google today launched an update to its reCAPTCHA technology that the company has been offering since 2007 to fight off bots on the world wide web. In the latest version of the technology, an adaptive risk analysis runs in the background to examine user behavior for irregular activities across different pages on a website.

Because it is score-based and doesn't rely on barriers to tell humans from bots, using it across multiple pages shouldn't harm a site's conversion rate when attempting to sign up new subscribers.

reCAPTCHA technology has served as an important tool for webmasters to ward off bots on their sites, but often at the expense of user experience. You can set a simple target that needs to be met so that no further action is required, you can combine the score with your own metrics for better results, plus you can use the score to train your machine learning model. Scores will go from 0.1 (bad) to 1 (good). More information can be found in Google's blog post or on the dev site. This will let site admins take custom actions on users based on risk score.

Site owners can also use the reCAPTCHA scores in conjunction with their own data, such as user profiles or transaction histories, to decide an appropriate strategy. To help determine that factor more accurately, Google is introducing the "Action" tag.

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