Scalable Web Crawler API
For Massive AI Data Ingestion
Crawl entire documentation trees, knowledge bases, and multi-hop link graphs with intelligent frontier queues, automatic sitemap traversal, and real-time Server-Sent Events (SSE) progress streaming.
📡 Interactive Server-Sent Events (SSE) Crawl Simulator
Experience how FlyCrawl streams parsed Markdown in real time without waiting for thousands of pages to finish.
How FlyCrawl Ingests 50,000 Pages Concurrently
Sitemap Discovery
Automatically parses robots.txt and sitemap index trees to discover all canonical URLs instantly.
Frontier Queue & De-Dup
Applies regex include/exclude path patterns, depth bounds, and canonical URL deduplication.
Distributed Workers
Up to 64 parallel scraping workers execute in memory with stealth residential IP rotation.
SSE & Webhook Stream
Listen to Server-Sent Events or receive complete zipped markdown batches at your webhook URL.
Automated Sitemap Traversal
Input a domain root and FlyCrawl parses standard sitemaps, nested index sitemaps, and WordPress XML files automatically without manual URL extraction.
Real-Time SSE Streaming
Consume scraped markdown chunks progressively as they finish. Feed live RAG vector databases without waiting for large batch jobs to conclude.
Polite Rate Limiting & Jitter
Configure max concurrent requests per domain and randomized jitter delays to ensure host servers remain healthy and unburdened.
Crawler Architecture Comparison
| Feature |
|
🔥 Firecrawl | 🕸️ Apify |
|---|---|---|---|
| Max Concurrency per Job | Up to 64 Workers | Tier Capped | High RAM usage bills |
| Real-Time SSE Streaming | ✓ Native SSE Endpoint | Webhook only | Complex Actor polling |
| Auto Sitemap Discovery | ✓ Sub-sitemaps included | ✓ Yes | Custom actor config |
| Sovereign Crypto Billing | ✓ USDT, TON, TRX | ✗ No | ✗ No |
Frequently Asked Questions
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