Scrapfly Bloghttps://scrapfly.io/blog2026-04-18T22:18:53+00:00ScrapflyWeb scraping tutorials, guides, and articles by Scrapflyhttps://scrapfly.io/img/scrapfly-logo.pngHTTP/2 and HTTP/3 Fingerprinting: Protocol-Level Bot Detectionhttps://scrapfly.io/blog/posts/http2-http3-fingerprinting-guide2026-04-08T15:40:08+00:002026-04-18T16:36:36+00:00Learn how HTTP/2 and HTTP/3 fingerprinting works at the protocol level, how anti-bot services use SETTINGS frames, pseudo-header ordering, and QUIC transport parameters to detect scrapers, and how to bypass detection with proper fingerprint matching using Python.How Browser Fingerprinting Works and How to Defend Against Ithttps://scrapfly.io/blog/posts/how-browser-fingerprinting-works2026-04-08T15:39:58+00:002026-04-18T16:36:36+00:00Learn how browser fingerprinting works, from canvas to WebGPU, and discover developer-focused techniques to bypass detection in your web scrapers.Playwright Stealth: Bypass Bot Detection in Python & Node.jshttps://scrapfly.io/blog/posts/playwright-stealth-bypass-bot-detection2026-03-10T00:00:00+00:002026-04-18T16:36:36+00:00Complete guide to using playwright-stealth in Python and playwright-extra with stealth plugin in Node.js. Covers how detection works, evasion module breakdown, testing, limitations, and scaling to production with cloud browsers.Stagehand vs Browser Use: AI Browser Agent Guidehttps://scrapfly.io/blog/posts/stagehand-vs-browser-use2026-03-06T00:00:00+00:002026-04-18T16:36:36+00:00Compare Stagehand and Browser Use AI browser agents. Learn which framework fits your language, workflow, and automation needs.Post-Quantum TLS: Why Scraping Tools Are Now Exposedhttps://scrapfly.io/blog/posts/post-quantum-tls-bot-detection2026-03-04T00:00:00+00:002026-04-18T16:36:36+00:00Post-quantum TLS is now a live bot detection signal. Modern browsers send X25519MLKEM768 key shares by default, and scrapers that don’t are increasingly exposed before HTTP starts. For teams that don’t want to maintain a PQ-aware TLS stack themselves, Scrapfly handles browser-grade TLS fingerprinting at the infrastructure level.How to Bypass Cloudflare Turnstilehttps://scrapfly.io/blog/posts/how-to-bypass-cloudflare-turnstile2026-02-27T00:00:00+00:002026-04-18T16:36:36+00:00Learn how Cloudflare Turnstile detects bots and 3 proven methods to bypass Turnstile challenges when web scraping.How to Bypass Anti-Bot Protection When Web Scrapinghttps://scrapfly.io/blog/posts/how-to-bypass-anti-bot-protection-when-web-scraping2026-02-27T00:00:00+00:002026-04-18T16:36:36+00:00Learn how anti-bot systems detect scrapers and 5 universal bypass techniques including proxy rotation, fingerprinting, and fortified headless browsers.Puppeteer Stealth: Complete Guide to Avoiding Detectionhttps://scrapfly.io/blog/posts/puppeteer-stealth-complete-guide2026-02-19T00:00:00+00:002026-04-18T16:36:36+00:00Complete guide to puppeteer-extra-plugin-stealth for avoiding bot detection. Learn how detection works, configure stealth evasion modules, implement complementary techniques, and scale with cloud browsers.How to Create an AI Browser Agent for Freehttps://scrapfly.io/blog/posts/how-to-create-an-ai-browser-agent-for-free2026-02-18T00:00:00+00:002026-04-18T16:36:36+00:00Build two free AI browser agents using Browser-Use (Python) and Stagehand (TypeScript) with step-by-step code examples and Google Gemini's free tier.Headless Browser vs Cloud Browser: Which One Should You Choose?https://scrapfly.io/blog/posts/headless-browser-vs-cloud-browser2026-02-13T00:00:00+00:002026-04-18T16:36:36+00:00Compare headless browsers and cloud browsers for web scraping and automation. Learn when to use local headless browsers vs cloud-hosted solutions.Best CAPTCHA Solving APIs in 2026https://scrapfly.io/blog/posts/best-captcha-solving-api2026-02-05T00:00:00+00:002026-04-18T16:36:37+00:00Compare the best CAPTCHA solving services including 2Captcha, CapSolver, Anti-Captcha, and browser-integrated solutions. Learn when to solve CAPTCHAs versus preventing them with anti-bot bypass.Cloud Browser: What Is It and How to Use Ithttps://scrapfly.io/blog/posts/what-is-a-cloud-browser2026-02-04T00:00:00+00:002026-04-18T16:36:37+00:00Learn what cloud browsers are, how they work, and how to use them for web scraping, automation, and AI agents. Covers practical code examples with Playwright and Puppeteer.What is Screen Scraping? Developer's Guide with Python Exampleshttps://scrapfly.io/blog/posts/what-is-screen-scraping2026-02-02T00:00:00+00:002026-03-24T21:35:58+00:00Capture data from visual output when no API exists using browser automation to extract data from JavaScript-rendered pages.What Is Browser as a Service?https://scrapfly.io/blog/posts/what-is-a-browser-as-a-service2026-02-02T00:00:00+00:002026-03-24T21:25:48+00:00Cloud-hosted browser infrastructure accessible via API for scalable web automation, scraping, and AI agents with managed fingerprint stealth.Best Cloud Browser APIs in 2026https://scrapfly.io/blog/posts/best-cloud-browser-apis2026-02-02T00:00:00+00:002026-04-10T15:31:11+00:00Comprehensive comparison of cloud browser APIs for developers. Evaluate Bright Data, Browserless, Browserbase, Scrapfly, Steel.dev, and more with transparent pricing, feature matrices, and code examples.How to Take Screenshots in PHP?https://scrapfly.io/blog/posts/how-to-take-screenshots-php2026-01-23T00:00:00+00:002026-01-23T00:00:00+00:00Learn how to take screenshots in PHP using Browsershot, Chrome-PHP, and APIs. Covers installation, wait strategies, device emulation, and advanced techniques.How to Screenshot Cloudflare-Protected Websiteshttps://scrapfly.io/blog/posts/how-to-screenshot-cloudflare-protected-websites2026-01-12T00:00:00+00:002026-01-12T00:00:00+00:00Learn how to capture screenshots of Cloudflare-protected websites using Scrapfly Screenshot API, Puppeteer, and Selenium. Includes code examples and troubleshooting.Competitor Price Monitoring with Crawler APIhttps://scrapfly.io/blog/posts/competitor-price-monitoring-with-crawler-api2026-01-12T00:00:00+00:002026-01-12T00:00:00+00:00Build an automated competitor price monitoring system using Scrapfly Crawler API. Track thousands of products, handle anti-bot protection, and integrate with repricing tools.Build a Documentation Chatbot That Works on ANY Websitehttps://scrapfly.io/blog/posts/build-a-documentation-chatbot-that-works-on-any-website2025-12-26T00:00:00+00:002025-12-26T00:00:00+00:00Build an AI chatbot from any docs site using Scrapfly Crawler API, LangChain, and Streamlit. Works on Cloudflare-protected sites.Scraper API vs Crawler API - When to Use Each for AIhttps://scrapfly.io/blog/posts/scraper-api-vs-crawler-api2025-12-22T00:00:00+00:002026-04-18T16:36:37+00:00Scraper API for pages, Crawler API for domains. Learn when to use each Scrapfly API for AI training, RAG applications, and web scraping at scale.LangChain Web Scraping: Build AI Agents & RAG Applicationshttps://scrapfly.io/blog/posts/langchain-web-scraping-complete-guide-scrapfly2025-12-18T00:00:00+00:002026-03-24T23:45:35+00:00Learn to integrate LangChain with Scrapfly for web scraping. Build AI agents and RAG applications that extract, process, and understand web data at scale.Best Web Scraping Tools in 2026https://scrapfly.io/blog/posts/best-web-scraping-tools2025-12-13T00:00:00+00:002026-03-24T23:46:37+00:00Comprehensive guide to choosing web scraping tools for production. Learn the scraping pipeline framework and how to combine tools like Scrapfly, BeautifulSoup, Playwright, and Scrapy for reliable data extraction at scale.How to Scrape Facebook: Marketplace and Eventshttps://scrapfly.io/blog/posts/how-to-scrape-facebook2025-09-25T00:00:00+00:002025-09-25T00:00:00+00:00Complete guide to scraping Facebook data including Marketplace listings and Events. Covers authentication, anti-bot bypass, and production-ready techniques.Web Scraping Services Explainedhttps://scrapfly.io/blog/posts/web-scraping-services-explained2025-09-16T00:00:00+00:002026-03-24T23:47:22+00:00Explore web scraping services from managed APIs to self-hosted solutions. Learn use cases, pricing models, and how to choose the right data extraction service.Social Media Scraping in 2026https://scrapfly.io/blog/posts/social-media-scraping2025-09-09T00:00:00+00:002026-04-18T16:36:37+00:00> Compare four scraping methods across seven platforms. Difficulty ratings, anti-bot techniques, and Python examples for Instagram, Twitter/X, TikTok, LinkedIn, YouTube, Facebook, and Threads.Top LangChain Alternatives in 2026https://scrapfly.io/blog/posts/top-langchain-alternatives2025-08-27T00:00:00+00:002026-04-18T16:36:37+00:00Explore the best LangChain alternatives in 2026 for building powerful AI applications. Compare features, performance, and use cases to find the right framework for your needs.How to Scrape Naver.comhttps://scrapfly.io/blog/posts/how-to-scrape-naver2025-08-17T00:00:00+00:002026-04-10T19:18:54+00:00Master web scraping techniques for Naver.com, South Korea's dominant search engine.How to Scrape Imovelweb.comhttps://scrapfly.io/blog/posts/how-to-scrape-imovelweb2025-08-12T00:00:00+00:002026-04-18T16:36:37+00:00Scrape Imovelweb with Python - extract listings and details, handle pagination and JSON-LD, and use Scrapfly for anti-bot reliability.How to Scrape AutoScout24: API, Anti-Bot Bypass, and Python Guidehttps://scrapfly.io/blog/posts/how-to-scrape-autoscout242025-07-29T00:00:00+00:002026-04-13T11:36:12+00:00Learn how to scrape AutoScout24 car listings and detail pages with Python using __NEXT_DATA__ JSON extraction and anti-bot bypass.How to Scrape Allegro.pl Without Getting Blockedhttps://scrapfly.io/blog/posts/how-to-scrape-allegro2025-07-27T00:00:00+00:002026-04-18T16:36:38+00:00Scrape Allegro.pl product listings and detail pages with Python. Bypass DataDome anti-bot protection using itemprop meta tags, Polish proxies, and browser-like sessions.