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Free tier
Screaming Frog SEO Spider
Free alternative to: Sitebulb
License: Proprietary (free version)
Free terms: Free version crawls up to 500 URLs per crawl; the paid licence ($279/year per the official site) removes the limit and adds advanced features.
What it does
Industry-standard desktop crawler that audits sites for broken links, duplicate content, redirects, metadata, and 200+ other SEO issues.
Heads-up: Verified on the official screeching... (screamingfrog.co.uk/seo-spider) page: 'Download & crawl 500 URLs for free, or buy a licence for $279 Per Year to remove the limit & access advanced features.' Free tier is ample for auditing the average LexxAutomates-style directory site.
Get it
The project lives with its maintainers — we don't distribute it and we can't provide support for it.
Filed under: Free SEO & Marketing Tools
Last verified: September 17, 2026 · Official source ↗
Heads-up: licenses and free tiers change. This page summarizes what the project's official source published on the verified date — confirm the details on the official page before you build on it. We never invent pricing or limits.
Put it to work
Free SEO audit
Check whether your site is set up to rank for terms like these — 26 real checks, no signup.
Done-for-you setup
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