CrawlObserver vs Semrush
| CrawlObserver | Semrush | |
|---|---|---|
| Free plan | No | Yes |
| Free trial | No | No |
| Paid from | — | — |
| Open source | No | No |
| Platforms | api | api |
| Free plan | Yes | Yes |
| Keyword research | No | Yes |
| Rank tracking | No | Yes |
| Site audit | Yes | Yes |
| Backlink analysis | Yes | Yes |
| API access | Yes | Yes |
| Paid from | — | $117.33/mo |
| Competitor research | — | Yes |
| Tracked keywords | — | 500 keywords |
Both are listed in Best SEO Tools. On Freedom251, Semrush scores higher on our published basis.