ByPass CloudFlare

CloudFlare ByPasses Options

It depends on what you mean by "bypass Cloudflare DNS" — here are the most common scenarios:

1. Reaching the Origin Server (bypassing Cloudflare's proxy/CDN)

If a site is behind Cloudflare's orange-cloud (proxied) DNS records, you want the real server IP:

2. Using a Different DNS Resolver (instead of 1.1.1.1)

If you just want to stop using Cloudflare's public DNS:

Provider Address
Google 8.8.8.8 / 8.8.4.4
Quad9 9.9.9.9
OpenDNS 208.67.222.222
Your ISP's default (check router settings)

Change it in your OS settings, router DHCP config, or in a browser like Firefox (Settings → Network → DNS over HTTPS).

3. Getting Past Cloudflare's Anti-Bot / Challenge Pages

If you're hitting a "Checking your browser…" or 403 page:

Which of these are you actually trying to solve? I can give more specific steps if you share a bit more context.

Passing AntiBot

Getting Past Cloudflare's Anti-Bot / Challenge Page — The Full Toolbox

Cloudflare layers many signals on top of each other. No single trick works universally; you often need to combine several. Below is the full stack, from easiest to most aggressive.

1. The Signal Stack Cloudflare Actually Inspects

Before diving into tricks, know what's being scored:

Layer What it checks
IP reputation Datacenter vs residential vs mobile, ASN, geo, prior abuse
TLS fingerprint (JA3 / JA4) Cipher order, extensions, curve list, ALPN — unique per library/browser
HTTP/2 fingerprint SETTINGS frame values, pseudo-header order, WINDOW_UPDATE size
HTTP headers Which headers, their order, values (UA, Accept-Language, etc.)
JavaScript execution The actual challenge: a PoW hash, DOM checks, or Turnstile
Browser fingerprint Canvas, WebGL, AudioContext, fonts, screen size, plugins, navigator.*
Behavioural signals Mouse movement, scroll, timing of clicks, focus events
Cookie state cf_clearance, __cf_bm, __cf_chl_* — tied to IP + UA + TLS
Rate / volume How fast you're hitting, from how many IPs

A request that looks fine at layer 3 but has a Python-requests TLS fingerprint at layer 1 will get flagged.

2. Quick / Low-Effort Fixes

3. IP / Network Layer

This is often the #1 reason you keep getting challenged.

4. TLS & HTTP/2 Fingerprint (the "invisible" wall)

Even with a residential IP, python-requests, curl, or Node fetch have a distinct TLS handshake that a real browser doesn't. Cloudflare fingerprints this.

Tools that impersonate a real browser's TLS + HTTP/2 fingerprint:

Tool Language Notes
curl_cffi Python pip install curl_cffi – impersonates Chrome / Safari / Edge / Firefox TLS. Easiest
to start.
curl-impersonate C (CLI) Patched curl binary that clones Chrome/Safari handshake byte-for-byte.
tls-client (bogdanfinn) Go Very popular in the scraping community. Supports cookie jars, proxy
rotation.
cycletls Go Fork of tls-client, actively maintained.
utls Go Low-level; you build the handshake yourself.
httpx + curl_cffi backend Python Modern async HTTP with the right fingerprint.

Example (Python, curl_cffi):

from curl_cffi import requests

session = requests.Session(impersonate="chrome124")
session.proxies = {"https": "http://user:pass@residential-proxy:port"}

r = session.get("https://protected-site.com", headers={
    "Accept-Language": "en-US,en;q=0.9",
})
print(r.status_code, r.text[:200])

This alone clears a surprising number of 403 / challenge pages that vanilla requests can't.

5. The cf_clearance Cookie (the "master key")

When a real browser successfully passes the challenge, Cloudflare sets a cf_clearance cookie. It is:

Strategy: solve once, reuse many

  1. Open the site in a real Chrome on a machine with a residential IP.
  2. Let the challenge auto-resolve (or click Turnstile).
  3. Extract the cookies:
    • DevTools → Application → Cookies, or
    • A browser extension (e.g., Get cookies.txt, EditThisCookie).
  4. Replay those cookies in your script with the same UA, same IP, same TLS fingerprint.
# Reuse the clearance cookie
cookies = {
    "cf_clearance": "abcdef...",
    "__cf_bm": "123456...",
}
r = session.get("https://protected-site.com/data", cookies=cookies)

⚠️ If the IP, UA, or TLS fingerprint changes even slightly, the cookie is rejected.

Automate the "solve once" step:

6. Headless Browser + Stealth (when you must script)

If you need a full browser (for dynamic content, SPAs, etc.):

Key stealth plugins / configs

Things the stealth plugins patch:

Extra hardening:

7. Cloudflare Turnstile (the "new" captcha)

Turnstile replaced the old I-AM-HUMAN checkbox in many deployments. It's a small widget that:

How to handle it:

8. Alternative Endpoints (cheeky but effective)

Sometimes the main site is behind a heavy challenge, but:

Check the site's robots.txt and look for API docs.

9. If You Own / Control the Site

You (or the site owner) can simply turn the dial down:

10. Nuclear / "For All Costs" Options

If nothing above works:

  1. Run a real Chrome on a residential-IP VPS (e.g., a $5/month VPS in a datacenter + a residential proxy on the outbound), drive it with Playwright + stealth. This is what most scraping farms do.
  2. Use a managed scraping service (Bright Data, Oxylabs, ScrapingBee, Apify, Zyte). They've already solved the fingerprint + IP + challenge dance and sell you the clean HTML/JSON.
  3. curl-impersonate + a real cf_clearance cookie: the closest you can get to "invisible" without a full browser.
  4. Solve the PoW manually (advanced): Cloudflare's old managed challenge is a hash-based proof-of-work. You can:
    • Intercept the JS with a breakpoint.
    • Extract the challenge parameters (cf_chl_opt).
    • Run the hash loop in your own code.
    • POST the result back and collect the cf_clearance cookie.
    • (This is what libraries like cloudscraper tried to do, but Cloudflare keeps rotating the algorithm, so it breaks periodically.)
  5. Use Cloudflare's own edge: if you own the zone, add a Cloudflare Worker that sets a custom header or rewrites the response before it hits the challenge logic.

11. A Practical Decision Flowchart

GET request → 200?  → Done ✅
                → 403 / challenge page?
                     ├─ Are you on a datacenter IP?  → Switch to residential
                     ├─ Are you using raw requests/curl? → Switch to curl_cffi / tls-client
                     ├─ Is your UA / headers consistent with IP geo?  → Fix
                     ├─ Can you solve it once in a real browser and reuse the cookie? → Do that
                     ├─ Do you need dynamic content / a SPA?  → Playwright + stealth + residential proxy
                     ├─ Is it Turnstile?  → Real browser, wait, click checkbox if shown
                     └─ Still stuck?  → Managed scraping API, or ask the site owner to whitelist you

TL;DR: For most people, the combo that "just works" is:

Residential proxy + curl_cffi (or tls-client) + a real browser's UA + solve the challenge once in Chrome to grab cf_clearance + reuse the cookie.

That covers ~90 % of cases. The remaining 10 % (heavy behavioural checks, Turnstile with visible UI, rate-limited APIs) need a full stealth-browser session or a paid scraping service.

Want me to write a concrete script for a specific target or toolchain?

Finding the Origin IP Behind Cloudflare

Finding the Origin IP Behind Cloudflare This is a well-known problem (sometimes called "origin IP discovery" or "de-cloudflaring"). Cloudflare's whole point is to hide it, so there's no single reliable method — but you can combine several.

1. Passive DNS / DNS History (most effective)

Before the site added Cloudflare, its A record pointed directly to the origin. DNS history services logged that.

Service How
ViewDNS.info (dns view history) Type the domain → "DNS History" tab
SecurityTrails securitytrails.com → domain → "DNS Records" (has a history timeline)
RapidDNS (rapiddns.io) Enter domain, shows all past A/CNAME records
Censys Search the domain, look at historical IP associations
DNSTwist / whoisds.com Similar passive-DNS lookups

Look for an A record that is not a Cloudflare IP range (104.16–104.31.x, 172.64–172.71.x, 188.114.x, 190.93.x, 198.41.x, 198.97.x, 162.158.x, 131.0.72.x, 141.101.x, 173.245.x, etc.).

That non-Cloudflare IP from, say, 2019 is very likely still the origin (or was very recently).

2. Non-Proxied Subdomains

Site owners often only put the main domain (example.com, www) on the orange cloud. Other subdomains stay grey (direct):

# Quick manual check
for sub in mail ftp dev staging test api blog shop cdn assets media files docs app admin panel; do
  echo -n "${sub}.example.com → "
  dig +short A ${sub}.example.com
done

Or use a subdomain enumerator first (subfinder, amass, assetfinder) and then check each A record for a non-Cloudflare IP.

Common culprits: mail., ftp., dev., staging., old., legacy., internal., api., ws. (websockets)

If any of those resolve to a real IP (not a Cloudflare range), that's your origin.

3. SSL Certificate Transparency Logs

crt.sh?q=%25example.com

or search on Censys / SSL Labs.

Sometimes:

4. Shodan / Censys / FOFA

They often show the IP that was or still is answering with that domain's Host header, including before or outside Cloudflare.

5. Email & DNS Records That Bypass Cloudflare

Mail records are almost never proxied through Cloudflare:

dig +short MX example.com
dig +short TXT example.com    # SPF, DKIM, DMARC
dig +short NS example.com

The MX server's IP is frequently the same server (or same VPS) that hosts the website.

dig +short A mail.example.com   # or the MX hostname

Also check:

6. Traceroute (long shot)

traceroute example.com
# or
mtr example.com

You'll see the path to Cloudflare's edge. After the CF hop, the next hop should be the origin's upstream ISP — and if you can identify that ASN/IP, you've narrowed it down. Not super reliable, but occasionally the last hop before "timeout" gives a hint.

7. Leaks in the Site Itself

Look at the page source / network tab in DevTools:

8. WHOIS / RDAP (historical)

Check if the domain's registrar history or name-server history reveals a prior hosting provider. Less useful now, but sometimes the old NS pointed to a server whose IP you can trace.

9. Brute-Force / Ping Sweep (last resort)

If you've narrowed it to a /24 or a small range (e.g., you know it's an AWS 54.200.x.x block):

for i in $(seq 1 254); do
  ping -c1 -W1 54.200.1.$i &
done
wait

Then curl -H "Host: example.com" http://<ip> on each live IP to see if it responds with the site's content.

10. If You Own / Control the Site

Open the Cloudflare dashboard → Network (or DNS) tab. The origin IP is right there, and you can also see it under Overview → your zone's "origin" info.

Practical "Try In This Order" List

  1. Passive DNS history (ViewDNS / SecurityTrails) ← fastest, most likely to work
  2. Subdomain enumeration + dig for non-CF IPs
  3. MX / SPF / DKIM → resolve those hostnames
  4. crt.sh / Censys for cert-based clues
  5. Shodan / FOFA search by domain
  6. Inspect the site's JS / network traffic for hardcoded IPs
  7. Traceroute as a sanity check
  8. Ping sweep if you've narrowed the range

Quick-Start Script (Python-ish)

DOMAIN="example.com"

echo "=== MX / SPF ==="
dig +short MX $DOMAIN
dig +short TXT $DOMAIN | grep spf

echo "=== Common subdomains ==="
for sub in mail ftp dev api blog shop ws cdn; do
  IP=$(dig +short A ${sub}.$DOMAIN)
  [[ -n "$IP" ]] && echo "${sub}.${DOMAIN} → $IP"
done

echo "=== Check if any IP is NOT Cloudflare ==="
# Cloudflare ranges (simplified): 104.16-31, 172.64-71, 188.114, 190.93, 198.41, 198.97, 162.158, 131.0.72,
141.101, 173.245
# If the IP doesn't match, it's likely the origin.

Want me to run through this for a specific domain? Give me the URL and I can walk through the steps.