| Date | IP Address |
| 2023-10-25 | 104.16.168.131 (ClassC) |
| 2024-12-27 | 104.19.229.21 (ClassC) |
| 2025-01-07 | 104.19.230.21 (ClassC) |
| Date | Domain | IP |
| a2.hcaptcha.com | 2025-01-03 | 104.19.229.21 |
| api2.hcaptcha.com | 2023-10-16 | 104.16.169.131 |
| imgs2.hcaptcha.com | 2023-08-09 | 104.16.169.131 |
| imgs3.hcaptcha.com | 2024-01-29 | 18.161.6.55 |
| a.hcaptcha.com | 2023-10-13 | 104.16.168.131 |
| analytics-beta.hcaptcha.com | 2023-10-25 | 104.16.168.131 |
| dashboard.hcaptcha.com | 2024-12-27 | 104.19.230.21 |
| charlie.hcaptcha.com | 2024-12-27 | 104.19.230.21 |
| cloudflare.hcaptcha.com | 2024-09-02 | 104.18.18.132 |
| billing.hcaptcha.com | 2023-10-13 | 104.16.169.131 |
| api.hcaptcha.com | 2023-10-13 | 104.16.168.131 |
| pat-internal.hcaptcha.com | 2024-08-22 | 104.19.230.21 |
| demo.hcaptcha.com | 2024-12-27 | 104.19.230.21 |
| analytics.hcaptcha.com | 2023-10-25 | 104.16.169.131 |
| docs.hcaptcha.com | 2025-01-07 | 104.19.230.21 |
| imgs.hcaptcha.com | 2023-08-31 | 104.16.169.131 |
| cf-imgs.hcaptcha.com | 2024-09-02 | 104.18.16.115 |
| js.hcaptcha.com | 2023-10-04 | 104.16.169.131 |
| assets.hcaptcha.com | 2023-09-25 | 104.16.168.131 |
| cf-assets.hcaptcha.com | 2024-09-18 | 104.18.23.122 |
| newassets.hcaptcha.com | 2023-10-04 | 104.16.168.131 |
| accounts.hcaptcha.com | 2023-10-25 | 104.16.169.131 |
| three-cust.hcaptcha.com | 2024-11-10 | 104.19.229.21 |
| www.hcaptcha.com | 2023-08-18 | 104.16.168.131 |
| sentry.hcaptcha.com | 2024-12-03 | 104.19.229.21 |