[Blog](https://scrapfly.io/blog) / [blocking](https://scrapfly.io/blog/tag/blocking) # \# blocking 48 articles about blocking [All](https://scrapfly.io/blog) [ai](https://scrapfly.io/blog/tag/ai) [api](https://scrapfly.io/blog/tag/api) [automation](https://scrapfly.io/blog/tag/automation) [beautifulsoup](https://scrapfly.io/blog/tag/beautifulsoup) [blocking](https://scrapfly.io/blog/tag/blocking) [cloud-browser](https://scrapfly.io/blog/tag/cloud-browser) [crawling](https://scrapfly.io/blog/tag/crawling) [css-selectors](https://scrapfly.io/blog/tag/css-selectors) [curl](https://scrapfly.io/blog/tag/curl) [data-parsing](https://scrapfly.io/blog/tag/data-parsing) [ecommerce](https://scrapfly.io/blog/tag/ecommerce) [fashion](https://scrapfly.io/blog/tag/fashion) [frameworks](https://scrapfly.io/blog/tag/frameworks) [golang](https://scrapfly.io/blog/tag/golang) [graphql](https://scrapfly.io/blog/tag/graphql) [headless-browser](https://scrapfly.io/blog/tag/headless-browser) [hidden-api](https://scrapfly.io/blog/tag/hidden-api) [http](https://scrapfly.io/blog/tag/http) [httpx](https://scrapfly.io/blog/tag/httpx) [java](https://scrapfly.io/blog/tag/java) [javascript](https://scrapfly.io/blog/tag/javascript) [jupyter](https://scrapfly.io/blog/tag/jupyter) [nodejs](https://scrapfly.io/blog/tag/nodejs) [parsel](https://scrapfly.io/blog/tag/parsel) [php](https://scrapfly.io/blog/tag/php) [playwright](https://scrapfly.io/blog/tag/playwright) [project](https://scrapfly.io/blog/tag/project) [proxies](https://scrapfly.io/blog/tag/proxies) [puppeteer](https://scrapfly.io/blog/tag/puppeteer) [python](https://scrapfly.io/blog/tag/python) [r](https://scrapfly.io/blog/tag/r) [real-estate](https://scrapfly.io/blog/tag/real-estate) [requests](https://scrapfly.io/blog/tag/requests) [ruby](https://scrapfly.io/blog/tag/ruby) [scaling](https://scrapfly.io/blog/tag/scaling) [scrapeguide](https://scrapfly.io/blog/tag/scrapeguide) [scrapy](https://scrapfly.io/blog/tag/scrapy) [screenshots](https://scrapfly.io/blog/tag/screenshots) [selenium](https://scrapfly.io/blog/tag/selenium) [seo](https://scrapfly.io/blog/tag/seo) [tools](https://scrapfly.io/blog/tag/tools) [typescript](https://scrapfly.io/blog/tag/typescript) [web-scraping](https://scrapfly.io/blog/tag/web-scraping) [xpath](https://scrapfly.io/blog/tag/xpath) ## // 48 results Search articles [ blocking proxies scrapeguide ### How to Avoid Proxy Detection in Web Scraping Learn what gets proxies flagged, how to pick a proxy type, and when to rotate vs hold a sticky session to avoid detection. Jun 30, 2026 16 min read ](https://scrapfly.io/blog/posts/how-to-avoid-proxy-detection) [ python blocking api ### How to Scrape Air France Flights with Python in 2026 Scrape Air France round-trip flight offers with Python and the Scrapfly Cloud Browser API: walk the booking widget, capture the Gr... Jun 23, 2026 25 min read ](https://scrapfly.io/blog/posts/how-to-scrape-air-france-flights) [ python blocking scrapeguide ### How to Bypass Anti-Bot Protection in 2026: All 8 Major Vendors Identify and bypass Cloudflare, DataDome, PerimeterX, Kasada, Akamai, Incapsula, F5, and AWS WAF with Python code examples and suc... Jun 11, 2026 18 min read ](https://scrapfly.io/blog/posts/how-to-bypass-anti-bot-protection) [ http python blocking ### HTTP/2 and HTTP/3 Fingerprinting: Protocol-Level Bot Detection Learn how HTTP/2 and HTTP/3 fingerprinting works at the protocol level, how anti-bot services use SETTINGS frames, pseudo-header o... Apr 08, 2026 13 min read ](https://scrapfly.io/blog/posts/http2-http3-fingerprinting-guide) [ blocking tools ### How Browser Fingerprinting Works and How to Defend Against It Learn how browser fingerprinting works, from canvas to WebGPU, and discover developer-focused techniques to bypass detection in yo... Apr 08, 2026 16 min read ](https://scrapfly.io/blog/posts/how-browser-fingerprinting-works) [ blocking proxies scrapeguide ### TCP/IP Stack Fingerprinting and Proxy Bypass How passive TCP/IP fingerprinting exposes OS mismatches, proxy leaks, and VPN overhead before HTTP parsing starts, and how to test... Mar 14, 2026 16 min read ](https://scrapfly.io/blog/posts/tcp-ip-stack-fingerprinting-proxy-bypass) [ python blocking nodejs ### Playwright Stealth: Bypass Bot Detection in Python & Node.js Complete guide to using playwright-stealth in Python and playwright-extra with stealth plugin in Node.js. Covers how detection wor... Mar 10, 2026 19 min read ](https://scrapfly.io/blog/posts/playwright-stealth-bypass-bot-detection) [ python blocking ### How Cloudflare Detects Bots: TLS, HTTP/2, Canvas, and Turnstile Explained Learn how Cloudflare detects bots using TLS, HTTP/2, Canvas, WebGL, behavioral analysis, and Turnstile, plus how to scrape protect... Mar 06, 2026 20 min read ](https://scrapfly.io/blog/posts/how-cloudflare-detects-bots) [ http blocking ### Post-Quantum TLS: Why Scraping Tools Are Now Exposed Post-quantum TLS is now a live bot detection signal. Modern browsers send X25519MLKEM768 key shares by default, and scrapers that ... Mar 04, 2026 16 min read ](https://scrapfly.io/blog/posts/post-quantum-tls-bot-detection) [ blocking ### How to Bypass Anti-Bot Protection When Web Scraping Learn how anti-bot systems detect scrapers and 5 universal bypass techniques including proxy rotation, fingerprinting, and fortifi... Feb 27, 2026 14 min read ](https://scrapfly.io/blog/posts/how-to-bypass-anti-bot-protection-when-web-scraping) [ blocking ### How to Bypass Cloudflare Turnstile Learn how Cloudflare Turnstile detects bots and 3 proven methods to bypass Turnstile challenges when web scraping. Feb 27, 2026 12 min read ](https://scrapfly.io/blog/posts/how-to-bypass-cloudflare-turnstile) [ blocking nodejs headless-browser ### Puppeteer Stealth: Complete Guide to Avoiding Detection Complete guide to puppeteer-extra-plugin-stealth for avoiding bot detection. Learn how detection works, configure stealth evasion ... Feb 19, 2026 16 min read ](https://scrapfly.io/blog/posts/puppeteer-stealth-complete-guide) 1 [2](https://scrapfly.io/blog/tag/blocking?page=2) [3](https://scrapfly.io/blog/tag/blocking?page=3) [4](https://scrapfly.io/blog/tag/blocking?page=4) [ ](https://scrapfly.io/blog/tag/blocking?page=2) Page 1 of 4 ยท 48 articles ## ? Quick Answers about blocking - [ Q Web scraping - what is HTTP 403 status code? ](https://scrapfly.io/blog/answers/403-status-code) - [ Q Web scraping - what is HTTP 429 status code? ](https://scrapfly.io/blog/answers/429-status-code) - [ Q What is 444 status code and how to avoid it? ](https://scrapfly.io/blog/answers/444-status-code) - [ Q Web scraping - what is HTTP 499 status code? ](https://scrapfly.io/blog/answers/499-status-code) - [ Q Web scraping - what is HTTP 503 status code? ](https://scrapfly.io/blog/answers/503-status-code) - [ Q Web scraping - what is HTTP 520 status code? ](https://scrapfly.io/blog/answers/520-status-code) - [ Q What are Cloudflare Errors 1006, 1007, 1008? ](https://scrapfly.io/blog/answers/cloudflare-error-1006-1007-1008-access-denied) - [ Q What is Cloudflare Error 1009? ](https://scrapfly.io/blog/answers/cloudflare-error-1009-access-denied-country-or-region-banned) - [ Q What is Cloudflare Error 1010? ](https://scrapfly.io/blog/answers/cloudflare-error-1010-browser-signature) - [ Q What is Cloudflare Error 1020? ](https://scrapfly.io/blog/answers/cloudflare-error-1020-access-denied) - [ Q How to scrape Perimeter X: Please verify you are human? ](https://scrapfly.io/blog/answers/perimeterx-verify-press-and-hold) ## Ready to scale your web scraping? 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