CrawlObserver
6.7#11 in seo crawler softwareFree planFree planWebAPI
VisitCrawlObserver vs WebCrawler Pro
WebCrawler Pro
7.9#1 in seo crawler software$1 usage-basedFree planWebLinuxmacOSSelf-hosted
VisitWhat both publish
| Fact | CrawlObserver | WebCrawler Pro |
|---|---|---|
| Data storage | Crawl results are stored in ClickHouse, described as a columnar database. | Scan data is stored as JSON files, while accounts and sessions use SQLite; signed-in scans are private and anonymous scans are reachable through their unique URLs. |
| Free plan | Yes | Yes |
| Integrations | The page lists Google Search Console, Claude Code, and SEObserver under “Integrates with.” | The FAQ names Google sign-in and support for user-provided OpenAI, Gemini, and Anthropic API keys; it says the user’s own key stays on their device. |
| 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 an independent site crawler and says agencies can send its client-ready reports to clients. |
CrawlObserver plans
- Free private betaFree
WebCrawler Pro plans
- Free guestFree
- Free signed inFree
- Paid tokens$1 a month
- GuestFree
- Free daily allowanceFree
- Signed-inFree
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 WebCrawler Pro if…
WebCrawler Pro suits site owners and agencies reviewing technical SEO, AEO, and GEO signals. Its client-ready report options may fit agencies sharing findings with clients.