| Class | Rating | Complexity | Lines of code |
|---|---|---|---|
| WPCaptcha_Functions | 184 | 1,042 | |
| WPCaptcha_Setup | 101 | 448 | |
| WPCaptcha_AJAX | 79 | 298 | |
| WPCaptcha_Utility | 49 | 450 | |
| WPCaptcha_Admin | 41 | 382 | |
| wf_flyout | 18 | 112 | |
| WPCaptcha | 16 | 87 | |
| WPCaptcha_Tab_Captcha | 13 | 201 | |
| WPCaptcha_Tab_Login_Form | 13 | 233 | |
| WPCaptcha_Captcha | 8 | 71 | |
| WPCaptcha_Tab_Firewall | 7 | 175 | |
| WPCaptcha_Stats | 7 | 33 | |
| WPCaptcha_Tab_Activity | 6 | 86 | |
| WPCaptcha_Tab_Design | 3 | 29 | |
| WPCaptcha_Tab_Temporary_Access | 1 | 8 | |
| WPCaptcha_Tab_GeoIP | 1 | 55 |