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Python-focused web scraping guides using requests, httpx, Playwright, and Selenium — from simple data pulls to async pipelines running at scale.

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Product Updates

Engineering Update: Atomic State, SDK Parsing, and Infrastructure

A technical breakdown of recent updates to AlterLab: implementing atomic state persistence for workers, resolving Node.js SDK template literal parsing, and infra fixes.

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Best Python web scraping API 2026: unbiased comparison

Discover how managed APIs compare to DIY and open‑source options for Python scraping in 2026. See success rates, latency, cost, and anti‑bot handling in a clear, data‑driven review.

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Grounding LLMs with Live Web Data: Reducing Hallucinations via Real-Time Scraping

Learn how to fetch fresh web data with AlterLab's scraping API to ground LLM responses and cut hallucinations. Practical Python and curl examples included.

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Managing Rate Limits in Large Scale Web Scraping

Learn how to implement exponential backoff, proxy rotation, and request scheduling to avoid rate limits and 429 errors in high-volume data pipelines.

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Building Efficient RAG Pipelines with Clean Markdown and JSON to Reduce LLM Token Waste

Learn how to structure scraped data as Markdown and JSON to minimize token usage in RAG pipelines, improve retrieval accuracy, and lower LLM costs.

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Building a RAG Pipeline with Live Web Data

Learn how to architect a Retrieval-Augmented Generation (RAG) pipeline that uses live web data to provide real-time context to LLMs.

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Reduce LLM Token Waste in RAG with Structured Markdown and JSON Extraction

Learn how to cut LLM token usage in RAG pipelines by extracting clean Markdown or JSON from web pages instead of raw HTML, lowering costs and improving retrieval quality.

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Scaling Web Scraping Pipelines for Production Data

Learn how to build resilient, scalable web scraping pipelines that handle dynamic content and bot detection using professional API architectures.

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How to Scrape Niche.com Data: Complete Guide for 2026

Learn how to scrape niche.com reviews and neighborhood data using Python and Node.js. A technical guide to handling anti-bot protections and structured extraction.

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How to Scrape Glassdoor Interviews Data: Complete Guide for 2026

Learn to scrape Glassdoor Interviews for job market insights using AlterLab's API. Python/Node.js examples, Cortex extraction, pricing, and compliance best practices.

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How to Scrape Rate My Professors Data: Complete Guide for 2026

Learn how to scrape Rate My Professors using Python and Node.js. This technical guide covers anti-bot handling, structured data extraction, and scaling pipelines.

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