--- title: "Behind the scenes of an AI-Driven Web Scraping System" url: https://daily.dev/posts/behind-the-scenes-of-an-ai-driven-web-scraping-system-apsqb0lnn source_url: https://www.ombulabs.ai/blog/ai-driven-scraping.html type: article source: "RUBYLAND" published: 2026-06-30T19:24:25.976Z updated: 2026-06-30T19:31:30.750Z tags: ["llm", "css", "crawling"] reading_time: 12 upvotes: 0 comments: 0 language: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Behind the scenes of an AI-Driven Web Scraping System **[RUBYLAND](https://daily.dev/sources/rubyla)** · 12 min read · 0 upvotes · 0 comments ## Summary A production engineering team built an AI-driven event aggregation scraper that ingests data from hundreds of partner sites. The post covers the full pipeline: handling static HTML vs SPAs vs lazy-loaded content using Playwright, using LLMs to generate CSS selectors (which fail 30-40% of the time on first attempt), reducing HTML size before sending to LLMs, preferring stable selectors like JSON-LD and data-testid over hashed class names, dealing with bot detection tiers, and implementing a human-in-the-loop correction loop with structured failure diagnosis. Key tools include Playwright, playwright-stealth, BeautifulSoup, Pydantic, and LlamaIndex. The core lesson: the LLM handles pattern recognition, while validation, retry logic, and failure diagnosis are engineering problems that wrap around it. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [Case for AI powered Data Pipelines at OmbuLabs Blog](https://daily.dev/posts/case-for-ai-powered-data-pipelines-at-ombulabs-blog-wunyvktaw) · RUBYLAND · 1 upvotes · 0 comments - [Traditional Scraping vs AI Scraping: A Practical Guide for Developers and Data Teams](https://daily.dev/posts/traditional-scraping-vs-ai-scraping-a-practical-guide-for-developers-and-data-teams-sqo3o3sbg) · freeCodeCamp · 2 upvotes · 0 comments - [Effectiveness of traditional and LLM-based methods for web scraping](https://daily.dev/posts/effectiveness-of-traditional-and-llm-based-methods-for-web-scraping-hmw2jnsez) · DEV · 3 upvotes · 0 comments --- Tags: [#llm](https://daily.dev/tags/llm), [#css](https://daily.dev/tags/css), [#crawling](https://daily.dev/tags/crawling) [View this post on daily.dev](https://daily.dev/posts/behind-the-scenes-of-an-ai-driven-web-scraping-system-apsqb0lnn)