One rule, taken seriously.

Anyone who has audited a large site with a desktop crawler knows the moment: the memory bar goes red, the fans spin up, and the app grinds to a halt somewhere in the hundreds of thousands of URLs. The usual advice is to buy more RAM, switch to a database mode, or chop the site into pieces. We thought the tool should just not do that.

Performance-first, by construction

RacingRoach is built around a single invariant: never hold the full crawl in RAM. Every data path is bounded, streaming, and backpressured. Results commit to disk as they complete, so RAM stays in the hundreds of megabytes — not the tens of gigabytes a RAM-bound crawler needs — whether you crawl a thousand URLs or a million. It isn't a setting you enable — it's how the engine is built.

Local and private, on purpose

Your crawl data is sensitive: staging URLs, internal structure, client sites under NDA. So RacingRoach runs entirely on your machine — no cloud service, no telemetry, no account to crawl. Your audit is yours: it never touches our servers, and there's nothing to opt out of.

Where we're headed

The crawler is deep and getting deeper — 90-plus checks and counting across crawlability, on-page, structure, rendering, and content. The free build is genuinely useful up to 1,000 pages per crawl; a single $59.99/yr license removes that cap and unlocks a handful of premium checks — structured-data validation, mobile-usability, custom JS snippets, and segmentation — while helping fund the work. No cloud tier will ever be part of that — the local-first promise is permanent.