A lab for web data quality.
Spider started as a Rust crawler and became a question: how do you know web data is good? We answer it in public — open source core, open benchmarks, and a bill that reads $0 when a page fails.
spider, open source
A low-latency Rust crawler. Concurrent by default, designed to crawl thousands of pages a second on a single host. MIT-licensed at github.com/spider-rs/spider.
Spider Cloud
The same crawler, hosted. Stealth, proxies, anti-bot, and auto-scaling rolled in. JavaScript rendering included; pay only for bandwidth and compute used.
AI extraction
Send a prompt and a URL, get structured JSON. Selectors and parsers are still there if you want them — most teams stop reaching for them.
The quality lab
Silk, our extraction model. StealthBench V1, published with methodology. The work shifted from moving pages fast to proving the data is right — fidelity, completeness, freshness, provenance.
- Support
- support@spider.cloud
- Sales
- sales@spider.cloud
- GitHub
- github.com/spider-rs
- Twitter / X
- @spider_rust
- Discord
- discord.spider.cloud
— The Spider team · BAGELMEN LLC · © 2026