CrawlObserver
6.7#11 in seo crawler softwareFree planFree planWebAPI
VisitCrawlObserver vs Screaming Frog SEO Spider
Screaming Frog SEO Spider
8.6#5 in seo toolsFree planFree planAPILinuxmacOSSelf-hosted
VisitWhat both publish
| Fact | CrawlObserver | Screaming Frog SEO Spider |
|---|---|---|
| API access | Yes | Yes |
| Backlink analysis | Yes | Yes |
| Free plan | Yes | Yes |
| Integrations | The page lists Google Search Console, Claude Code, and SEObserver under “Integrates with.” | It connects to Google Analytics, Search Console, and PageSpeed Insights APIs, and lists link metrics integrations for Majestic, Ahrefs, and Moz APIs. |
| Intended users | The page presents use cases for technical SEO audits, monthly tracking, internal linking analysis, broken-link detection, and client reporting. | The maker describes the tool as designed for experienced SEOs and says it is trusted by professional SEOs, agencies, and brands for technical SEO audits. |
| JavaScript rendering | Rendering can be turned off, set to automatic, or always enabled; automatic mode detects frameworks including React, Vue, Next.js, and Nuxt. | Integrated headless Chromium renders JavaScript sites and frameworks including Angular, React and Vue. |
CrawlObserver plans
- Free private betaFree
Screaming Frog SEO Spider plans
- FreeFree
- Paid licence—
- Free VersionFree
- Paid licence (20+)$235 a year
- Paid licence (10–19)$249 a year
- Paid licence (5–9)$265 a year
Pick CrawlObserver if…
It suits technical SEO audits, monthly tracking, internal-link analysis, migration checks, broken-link work, and client reporting. The service is currently presented as a free private beta.
Pick Screaming Frog SEO Spider if…
It is aimed at experienced SEOs and may suit agencies, brands and site owners conducting technical audits. JavaScript-heavy sites may benefit from its page rendering and framework support.