| Class | Rating | Complexity | Lines of code |
|---|---|---|---|
| Smart_SEO_Tool_Common | 381 | 1,198 | |
| Smart_SEO_Tool_Admin | 301 | 1,126 | |
| Smart_SEO_Tool_Sitemap | 145 | 659 | |
| Smart_SEO_Tool_Ajax | 114 | 458 | |
| Smart_SEO_Tool_Rewrite | 99 | 325 | |
| Smart_SEO_Tool_Url | 83 | 254 | |
| Smart_SEO_Tool_PostEdit | 42 | 160 | |
| Smart_SEO_Tool_Images | 39 | 148 | |
| Smart_SEO_Tool_Base | 11 | 36 | |
| Smart_SEO_Tool_Cron | 2 | 5 |