The ClawEngine blog
Engineering notes and buyer guides
Field notes from the team that builds and runs this thing. Honest vendor cost breakdowns with every figure read firsthand from the source, what broke at scale and what we did about it, and the tradeoffs nobody puts in a feature table. Written for the people who have to make the call and then live with it.
How to Limit a Crawl to the Pages You Need
Runaway crawls are a scope problem, not a crawler defect. Here is how seed URL, path rules, depth and page budget work together, what depth to set for each kind of site, and why a page limit alone never saves you.
Node.js Web Scraping with Puppeteer, Cheerio, or a Scraping API?
An honest comparison of the three ways to scrape with Node.js: Cheerio with fetch, a real browser through Puppeteer or Playwright, and a scraping API. What each is genuinely good at, the memory failures that kill Node scrapers in production, and a decision rule that usually says start with Cheerio.
Python Web Scraping with requests, Scrapy, or a Scraping API?
An honest comparison of the three ways to scrape with Python: requests plus BeautifulSoup, Scrapy, and a scraping API. What each is genuinely good at, where each breaks, and four questions that decide which one you need.
Web Scraping API vs Building Your Own, an Honest Cost Breakdown
Web scraping API vs building your own scraper: a clear-eyed comparison of engineering time, proxy and headless-browser ops, maintenance, and total cost, so you can decide what to own and what to buy.
How to Render JavaScript Pages When Scraping (2026 Guide)
To render JavaScript pages when scraping, load each URL in a headless browser or send it to a rendering API that runs the page scripts and returns the finished content as clean markdown or JSON.
Ready to put it to work? See how it works, explore the features, or compare plans.
Reading is good. Clean, LLM-ready data is better.
Point ClawEngine at any public or permitted site and get back clean markdown, JSON, or typed structured fields in one call. Crawl at scale, render JavaScript, and feed your RAG pipelines and AI agents, robots.txt and Terms of Service respected.
Clean markdown in one call · JavaScript rendered · robots.txt respected