Technical
Deep dives into anti-bot systems, TLS fingerprinting, proxies, and browser automation.
TCP/IP Fingerprinting: OS Clues in the SYN Packet
Capture TCP/IP fingerprints from SYN fields — TTL, window, MSS, option order, DF — with a scapy sniffer on your host. See why the OS stack leaks below TLS.
HTTP/2 Fingerprinting: Capture Client Frame Signatures
Capture HTTP/2 fingerprints from SETTINGS, WINDOW_UPDATE, PRIORITY, and pseudo-header order using a local Python listener you control.
Headless Browser Detection: What Test Pages Check
Public test pages reveal why default Playwright and Selenium fail headless checks—webdriver, WebGL, plugins, CDP—and what stealth setups change.
JA3/JA4 TLS Fingerprints Across HTTP Clients
Compare JA3 and JA4 TLS fingerprints across requests, curl, Go, Node, and browsers. Capture your own hashes with a runnable Python script.
Anti-Bot Detection: How Cloudflare, DataDome, and PerimeterX Work
How modern anti-bot systems detect scrapers in 2026: IP reputation, TLS fingerprinting, JS challenges, behavioral analysis, and device fingerprinting explained.
Building ETL Pipelines with Web Scraping APIs
Learn how to build production-ready ETL pipelines using web scraping APIs. Covers extraction, transformation, loading, scheduling, and monitoring.
The Future of Web Scraping: AI, LLMs, and Structured Extraction
Explore how AI and large language models are transforming web scraping with natural language queries, intelligent extraction, and the MCP protocol.
MCP Protocol: How to Connect AI Agents to Web Data
Guide to the Model Context Protocol (MCP) for connecting AI agents to live web data. Set up FineData's MCP server with Cursor IDE and Claude Desktop.
Proxy Rotation Strategies for Large-Scale Web Scraping
Technical guide to proxy rotation for web scraping: datacenter vs residential vs mobile proxies, rotation strategies, IP ban detection, and cost optimization.
Scaling Web Scraping from 1K to 10M Pages per Day
Architecture guide for scaling web scraping from thousands to millions of pages per day. Covers async patterns, queues, rate limiting, distributed systems, and cost optimization.
Web Scraping API vs DIY: Total Cost of Ownership Analysis
Detailed cost comparison of building web scraping infrastructure in-house vs using a scraping API. Includes developer time, proxies, CAPTCHAs, and maintenance.
Selenium vs Puppeteer vs Playwright vs Scraping API: Complete Comparison
Head-to-head comparison of Selenium, Puppeteer, Playwright, and scraping APIs for web scraping. Architecture, performance, anti-bot handling, and scaling.
TLS Fingerprinting Explained: How Anti-Bot Systems Detect Scrapers
TLS fingerprinting explained: how JA3/JA4 hashes let Cloudflare, Akamai, and other anti-bot systems detect scrapers from the TLS client hello alone.
Web Scraping Legal Guide: GDPR, CCPA, and robots.txt
Legal guide to web scraping in 2026: court cases, GDPR, CCPA, robots.txt, Terms of Service, and best practices for compliant and ethical data collection.