| Class | Rating | Complexity | Lines of code |
|---|---|---|---|
| Smart_SEO_Tool_Common | 360 | 1,124 | |
| Smart_SEO_Tool_Admin | 281 | 1,214 | |
| Smart_SEO_Tool_Sitemap | 139 | 640 | |
| Smart_SEO_Tool_Ajax | 122 | 432 | |
| Smart_SEO_Tool_Rewrite | 100 | 327 | |
| Smart_SEO_Tool_Url | 76 | 232 | |
| Smart_SEO_Tool_PostEdit | 43 | 160 | |
| Smart_SEO_Tool_Images | 39 | 148 | |
| Smart_SEO_Tool_Cron | 3 | 7 |