| Class | Rating | Complexity | Lines of code |
|---|---|---|---|
| Smart_SEO_Tool_Common | 381 | 1,180 | |
| Smart_SEO_Tool_Admin | 294 | 1,196 | |
| Smart_SEO_Tool_Sitemap | 144 | 653 | |
| Smart_SEO_Tool_Ajax | 136 | 463 | |
| Smart_SEO_Tool_Rewrite | 100 | 327 | |
| Smart_SEO_Tool_Url | 76 | 232 | |
| Smart_SEO_Tool_PostEdit | 43 | 162 | |
| Smart_SEO_Tool_Images | 39 | 148 | |
| Smart_SEO_Tool_Cron | 3 | 7 |