Screaming Frog SEO Spider
8.6#5 in seo toolsFree planFree planAPILinuxmacOSSelf-hosted
VisitScreaming Frog SEO Spider vs WebCrawler Pro
WebCrawler Pro
7.9#1 in seo crawler software$1 usage-basedFree planWebLinuxmacOSSelf-hosted
VisitWhat both publish
| Fact | Screaming Frog SEO Spider | WebCrawler Pro |
|---|---|---|
| Company size | LinkedIn lists the company size as 11–50 employees. | SaaSHub lists WebCrawler.pro as a Romanian startup with 1–9 employees and a 2026 founding year. |
| Free plan | Yes | Yes |
| Headquarters | Henley-on-Thames, Oxfordshire, UK | Rădășeni, Suceava, Romania |
| Integrations | It connects to Google Analytics, Search Console, and PageSpeed Insights APIs, and lists link metrics integrations for Majestic, Ahrefs, and Moz APIs. | 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 maker describes the tool as designed for experienced SEOs and says it is trusted by professional SEOs, agencies, and brands for technical SEO audits. | The maker describes the tool as an independent site crawler and says agencies can send its client-ready reports to clients. |
| Purpose | The SEO Spider is a website crawler that audits sites for over 300 SEO issues to help improve SEO and user experience. | WebCrawler Pro crawls websites and scores pages for technical SEO, answer-engine readiness (AEO), and generative engine optimization (GEO). |
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
WebCrawler Pro plans
- Free guestFree
- Free signed inFree
- Paid tokens$1 a month
- GuestFree
- Free daily allowanceFree
- Signed-inFree
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.
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.