| Class | Rating | Complexity | Lines of code |
|---|---|---|---|
| Smart_SEO_Tool_Common | 382 | 1,192 | |
| Smart_SEO_Tool_Admin | 303 | 1,109 | |
| Smart_SEO_Tool_Sitemap | 144 | 653 | |
| Smart_SEO_Tool_Ajax | 141 | 476 | |
| Smart_SEO_Tool_Rewrite | 100 | 327 | |
| Smart_SEO_Tool_Url | 77 | 235 | |
| Smart_SEO_Tool_PostEdit | 43 | 162 | |
| Smart_SEO_Tool_Images | 39 | 148 | |
| Smart_SEO_Tool_Cron | 3 | 7 |