AI SEO crawler
CrawlX
An AI SEO crawler that finds technical issues, explains each one in plain English, and tells you how to fix it.
- Client
- In-house product
- Industry
- SaaS, SEO software
- Year
- 2026
- Status
- Live
Built with Rust, ClickHouse, Next.js, Claude API

CrawlX crawls a website, surfaces its technical SEO problems, and explains them in plain language with a suggested fix. Cloud-native, fast, and built for teams. We built it from a blank page: the product, the brand, and the engineering.
The gap
The technical SEO crawler market is led by Screaming Frog, a desktop tool with a dated interface, no AI, and a one-person, one-machine model. No sharing, no assigning issues, no client portals.
At the other end, enterprise crawlers like Lumar are fast but cost 15,000 to 50,000 dollars a year. That left a clear gap: enterprise speed, a modern interface, AI built in, and pricing a small team can afford.
Positioning
Linear meets Datadog for SEO. A crawler that does not just hand you a list of errors. It tells you what each one means and how to fix it.
What we built
The product, the engineering, and the brand, end to end.
- 400+ SEO checks across 12 analysis modules
- An AI layer on the Claude API: plain-English explanations, auto-generated fix code, and a conversational assistant you can ask about your own crawl
- Six core screens, including a live crawl view, a Kanban issue explorer, a site-architecture visualizer, and a white-label report builder
- An AI search-readiness module that checks whether pages are built for AI answer engines, a gap no competitor covers
- Rust crawl workers at 350 to 450 URLs per second, matching enterprise tools, with ClickHouse for billion-row crawl data
What makes it different
- AI intelligence no legacy crawler offers: explanations, fix code, and a chat assistant, not static hints
- Enterprise-class crawl speed at small-team pricing
- Team-first: assign issues to developers, share client portals, and comment, instead of one license per machine
- Built into the pipeline, with CI/CD on GitHub Actions and Vercel to catch SEO regressions before they ship
Results
- 400+ checks across 12 modules
- 350 to 450 URLs per second, enterprise-class speed
- A real moat in speed and cost per crawl from the Rust and ClickHouse stack
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