Developer finds IP reputation, not CAPTCHA logic, is the real barrier to automation

A developer shared findings after spending three days attempting to bypass reCAPTCHA using a headless Playwright bot. The core discovery was that datacenter IP addresses are flagged before a CAPTCHA challenge even renders, making residential proxies essential. Using a third-party solving API to inject response tokens server-side proved more reliable than simulating user clicks on the widget. The developer also found that the token must be solved and submitted from the same IP exit node, and that rotating proxies actively broke the process. Persisting browser sessions and using sticky residential proxies significantly reduced the frequency of challenges and solver costs.