![]() ![]() ![]() For example, they can act as an efficient barrier against DDoS attacks.Īs for why Google uses CAPTCHAs, it's very likely to keep their servers safe from abusive traffic. The goal is to identify and prevent automated scripts and bots from performing those tasks so that the site doesn't end up flooded with spam.īesides that, CAPTCHAs are also used to protect sites from cyber threats. Websites generally use CAPTCHAs when users want to open an account, post a review, post a comment, or buy a product. Here's an example of how the No CAPTCHA reCAPTCHA looks like:Įxample of a Google CAPTCHA request when using a VPN No CAPTCHA reCAPTCHA (you have to tick a message like "I'm not a robot").Drag and drop (dragging a shape into its outline).Picture identification (pick images from a list that match the given description).Time-based tests (how long it takes you to fill a form).Word problems (retyping a word or typing a word from a list).The goal is to help sites tell real human visitors apart from bots. What Are CAPTCHAs & Why Are They Used?ĬAPTCHA comes from "Completely Automated Public (Turing) Test (to Tell) Computers and Humans Apart." Quite a mouthful, really.Īs the name implies, a CAPTCHA is a test that's easy to pass for humans - and difficult for computers. Also, we'll explain what CAPTCHA is, why it's used, and how to deal with CAPTCHAs when using VPNs. But you will start seeing them more and more if you're using Google while connected to a VPN. You might be used to seeing them on account creation webpages or forums, but do they also show up on Google? Then you're dealing with CAPTCHA requests. Does Google keep asking you to confirm you're not a robot, accurately copy numbers and words, or pick the right image sections whenever you use it while connected to a VPN? ![]()
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