# Bypass Cloudflare · Reliable access to protected pages

> Cloudflare's Bot Management, Under Attack Mode, and Turnstile stall most scrapers at 'checking your browser'. Zenrows Fetch returns the page behind them in one call, with Protected Web Access handled for you.

## The checkpoint clears. The page is yours.

Bot Management, Under Attack Mode, and Turnstile stall most scrapers. Zenrows Fetch returns the page behind them in one call.

## Cloudflare reads you five ways before the page.

Every layer scores you independently. A stock HTTP client fails the first one and never reaches the page. Hover a layer to see where it trips.

TLS fingerprint

Your client's TLS handshake (JA3/JA4) is matched against real browsers before a byte of HTML is sent. Stock clients don't match.

HTTP/2 & headers

Header order, casing, and HTTP/2 frame settings betray requests, curl, and default libraries. Real Chrome sends a precise shape yours doesn't.

JavaScript challenge

The interstitial runs JS that probes the browser environment. Headless setups miss the timing, canvas, and API signals it expects.

Turnstile & managed challenge

The widget scores the session with proof-of-work and behavioral checks. A bare request has no valid token to present.

IP reputation

Datacenter ASNs and reused addresses carry a low trust score. Cloudflare rate-limits or challenges them on sight.

## One call. Every layer, handled.

Point Fetch at a Cloudflare-protected URL. Protected Web Access resolves the challenge, renders the page, and routes through a trusted network. You get the HTML.

No solver to maintain. No headless fleet. No proxy rotation. One request.

curl "https://api.zenrows.com/v1/" \ -G \ --data-urlencode "url=https://protected.example.com" \ --data-urlencode "apikey=YOUR_KEY" \ --data-urlencode "js_render=true" \ --data-urlencode "premium_proxy=true" < HTTP/2 200 · challenge cleared · full HTML returned What comes back is ready to use. The rendered page, in the shape your pipeline wants. Switch the format on one parameter.

< html > < head >< title >Protected page</ title ></ head > < body > < h1 >Live pricing</ h1 > < span class= "price" >$249.00</ span > </ body > </ html > # Live pricing The rendered page as clean Markdown, ready to drop into an LLM prompt. **Price:** $249.00 { "title" : "Live pricing", "price" : "$249.00", "status" : 200, "rendered" : true } Challenge handled Page rendered Trusted network Auto-retry on block HTML · Markdown · JSON Cloudflare is one wall. Zenrows handles the rest. The same one call reaches pages behind every major anti-bot system. Point Fetch at a URL and get what's there.

_Canonical HTML: https://www.zenrows.com/bypass/cloudflare_

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### On This Topic
- [Anti-bot bypass](https://www.zenrows.com/bypass.md)
- [Bypass DataDome](https://www.zenrows.com/bypass/datadome.md)
- [Bypass PerimeterX](https://www.zenrows.com/bypass/perimeterx.md)
- [Bypass Akamai Bot Manager](https://www.zenrows.com/bypass/akamai.md)
- [Bypass Imperva](https://www.zenrows.com/bypass/imperva.md)
- [Bypass Kasada](https://www.zenrows.com/bypass/kasada.md)
- [Bypass F5 Bot Defense](https://www.zenrows.com/bypass/f5.md)
- [Bypass AWS WAF](https://www.zenrows.com/bypass/aws-waf.md)
- [Bypass reCAPTCHA](https://www.zenrows.com/bypass/recaptcha.md)
- [Bypass Cloudflare Turnstile](https://www.zenrows.com/bypass/turnstile.md)
- [Bypass GeeTest](https://www.zenrows.com/bypass/geetest.md)