At Friendly Captcha [1] (I'm a co-founder) we see this more and more as well, with residential proxies being commonly used now relying on IP reputation alone is (no longer) enough.
The main usecase of our captcha was protecting web actions (i.e. stuff you do on a page, like creating an account, making a query or logging in), but some our customers already built a setup where our captcha is part of a system that sits "in front of" the website to tackle this kind of abuse.
We're launching a product called Friendly Guard [2] to make this more straightforward this year. If you're up for it you can join our beta to try it out before it goes live, we'd love to learn from the situation.
The main usecase of our captcha was protecting web actions (i.e. stuff you do on a page, like creating an account, making a query or logging in), but some our customers already built a setup where our captcha is part of a system that sits "in front of" the website to tackle this kind of abuse.
We're launching a product called Friendly Guard [2] to make this more straightforward this year. If you're up for it you can join our beta to try it out before it goes live, we'd love to learn from the situation.
[1]: https://friendlycaptcha.com [2]: https://developer.friendlycaptcha.com/docs/v2/friendly-guard...