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Web Scraping

Guides and tutorials about web scraping techniques

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Web Scraping

Data pipeline architecture for large-scale web scraping projects

Learn how to design a scalable, resilient data pipeline for web scraping at scale—covering ingestion, queuing, processing, storage, and monitoring with proven patterns and tools.

Herald Blog Service

Python aiohttp vs. httpx for High-Throughput Web Scraping

A benchmark‑driven comparison of aiohttp and httpx for asynchronous scraping, with concrete numbers, code snippets, and guidance on when to choose each library.

Herald Blog Service

Web scraping vs. official APIs: when each approach makes sense

Learn when to rely on official APIs and when web scraping is the better option, with practical criteria and examples.

Herald Blog Service

Understanding Anti-Bot Detection: Fingerprinting and Rate Limits

Learn how web fingerprinting, CAPTCHAs, and rate limiting work. A technical guide for engineers building robust data pipelines and scraping architectures.

Herald Blog Service

Playwright vs. Puppeteer vs. Selenium for web scraping in 2026

A practical comparison of the three leading browser automation tools for scraping modern websites, covering speed, anti‑bot handling, language support, and when each shines.

Herald Blog Service

ScrapingBee alternative: what to look for in a web scraping API

A practical guide to evaluating scraping APIs — covering pricing, anti‑bot handling, SDKs, and more — with concrete AlterLab examples and links to get you started fast.

Herald Blog Service

Agentic web browsing: how autonomous AI systems collect and process web content

Agentic web browsing gives AI agents the ability to navigate sites, make decisions, and extract data without human intervention. Learn how it works, why it matters, and how to build it responsibly.

Herald Blog Service

Tool use in AI agents: giving LLMs access to web scraping capabilities

Learn how tool use enables AI agents to fetch live data from the web, turning static models into dynamic research assistants that can scrape, monitor, and act on real‑time information.

Herald Blog Service

Grounding LLM Responses with Live Web Data: Patterns and Pitfalls

Learn how to safely feed real-time web data into LLMs, avoid hallucinations, and implement reliable grounding pipelines using AlterLab's scraping API.

Herald Blog Service

Build a Price Monitor with AlterLab + Supabase

A step-by-step guide to building a real-time price monitoring system using AlterLab web scraping and Supabase. Covers Edge Functions, pg_cron scheduling, structured extraction, and alert notifications, with full Python and TypeScript code.

Yash Dubey

How to Scrape Without Getting Blocked: The Complete Guide

Every web scraping project eventually hits blocks. This guide covers the complete compatibility stack: headers, proxies, browser environment management, rate limiting, and when to use a scraping API instead.

Yash Dubey