CrawlObserver vs SISTRIX
| CrawlObserver | SISTRIX | |
|---|---|---|
| Free plan | No | No |
| Free trial | No | Yes |
| Paid from | — | €119/mo |
| Open source | No | No |
| Platforms | api | api, Web |
| Free plan | Yes | No |
| Keyword research | No | — |
| Rank tracking | No | Yes |
| Site audit | Yes | — |
| Backlink analysis | Yes | Yes |
| API access | Yes | — |
Both are listed in Best SEO Tools. On Specifiction, SISTRIX scores higher on our published basis.