The Anti-Bot Landscape in 2026
The anti-bot industry has undergone a seismic shift. Deployments grew 78% year-over-year as e-commerce, ticketing, and SaaS companies raced to protect their platforms from increasingly sophisticated automation. What was once a niche security product is now a core infrastructure requirement — and the detection methods have evolved far beyond simple IP blocklists and User-Agent checks.
Three companies dominate the commercial anti-bot market in 2026, each with a fundamentally different approach to detection. Understanding how each system works is the foundation of any reliable bypass strategy. Cloudflare, which we covered in our Cloudflare bypass guide, protects roughly 20% of the web. But DataDome, Akamai, and PerimeterX/HUMAN collectively protect a massive share of high-value targets: e-commerce platforms, airline booking sites, ticketing systems, and financial services.
DataDome — Behavioral ML Leader
DataDome's core advantage is behavioral analysis. It collects 35+ signals per session including mouse movement patterns, scroll velocity, typing cadence, and click coordinates. Its ML models build a real-time behavioral profile of every visitor and compare it against known human baselines. DataDome catches scrapers that pass every fingerprint test because their behavior is machine-like even when their fingerprint is human-like.
Akamai Bot Manager — TLS Fingerprint Pioneer
Akamai pioneered commercial TLS fingerprinting and introduced JA4 in 2026, catching automation libraries that had learned to spoof JA3 hashes. Akamai combines TLS fingerprints with client-side JavaScript challenges, browser integrity checks, and adaptive rate limiting. Its strength is identifying the tool being used, regardless of the IP behind it.
PerimeterX/HUMAN — Delayed Enforcement
PerimeterX (rebranded as HUMAN Security) takes a uniquely strategic approach: it lets suspected bots browse freely while accumulating behavioral signals. The block only fires at critical business actions — "Add to Cart," checkout, account creation, or form submission. This means a scraper might successfully browse 100 product pages, then get blocked the moment it tries to do something valuable.
Market Overview
Together with Cloudflare, these four vendors protect the vast majority of high-value web targets. The 78% growth in anti-bot deployments means sites that were unprotected last year are now behind one of these systems. The era of simple HTTP request scraping is definitively over — even for sites that previously had no bot protection at all.
The Stealth Tool Shakeup
In February 2026, puppeteer-extra-stealth was deprecated. The project's maintainers acknowledged that patching Chromium automation flags was no longer viable against modern detection. The community has migrated to purpose-built alternatives: Camoufox (patched Firefox with native anti-detection), Nodriver (undetected Chrome DevTools Protocol), SeleniumBase (undetected Selenium wrapper), Camoufox (source-patched Firefox), and Patchright (patched Playwright). Each takes a fundamentally different approach than the now-defunct stealth plugin model.
How DataDome Works
DataDome is arguably the hardest anti-bot system to bypass in 2026, specifically because it focuses on what you do rather than who you appear to be. While other systems can be fooled by presenting the right fingerprint from the right IP, DataDome watches your behavior in real-time and compares it against millions of known human sessions.
Behavioral Analysis
- Mouse movement patterns (velocity, acceleration, curvature)
- Scroll behavior (speed, pause patterns, direction changes)
- Typing cadence (inter-key timing, error correction patterns)
- Click coordinates relative to element boundaries
- Page focus/blur events (tab switching behavior)
Device Fingerprinting
- Canvas and WebGL rendering fingerprints
- Audio context fingerprint
- Screen resolution and color depth
- Installed fonts and plugins
- Hardware concurrency and device memory
Why Fingerprint-Only Solutions Fail Against DataDome
Here is the critical insight: DataDome's behavioral layer operates independently of its fingerprinting layer. You can present a perfect browser fingerprint from a residential IP and still get blocked if your mouse moves in straight lines, your scrolling is perfectly uniform, or your clicks land exactly on element centers. DataDome collects over 35 data points per session and feeds them into ML models trained on billions of real human sessions. The model detects micro-patterns that no amount of User-Agent spoofing or canvas randomization can fake.
DataDome's IP Reputation Layer
Beyond behavior, DataDome maintains a global IP reputation database fed by all its customer sites. An IP flagged as suspicious on one DataDome-protected site carries that reputation to every other DataDome site. Datacenter IPs are pre-flagged at installation. Residential IPs accumulate negative reputation quickly under bot-like behavior. Only mobile carrier IPs maintain consistently high trust scores because they are shared by millions of legitimate users through CGNAT, making it impossible for DataDome to downgrade them without causing massive false positives.
How Akamai Bot Manager Works
Akamai's approach to bot detection is built on a different philosophy than DataDome. While DataDome asks "does this visitor behave like a human?", Akamai asks "is this visitor using a real browser?" The answer lies primarily in TLS fingerprinting — a technique Akamai has invested in more heavily than any other vendor.
JA3/JA4 TLS Fingerprinting
Every HTTPS connection begins with a TLS handshake where the client advertises its supported cipher suites, extensions, and protocol versions. JA3 hashes these into a single fingerprint. In 2026, Akamai deployed JA4, a next-generation fingerprinting method that captures additional signals JA3 missed.
JA3 format: SSLVersion,Ciphers,Extensions,EllipticCurves,EllipticCurvePointFormats
JA4 format: TLSVersion_CipherCount_ExtensionCount_ALPN_SignatureAlgorithms (human-readable)
Client-Side JavaScript Challenges
Akamai injects JavaScript that tests browser APIs in ways that headless browsers and automation frameworks handle differently than real browsers. These challenges check for consistent rendering across canvas, WebGL, and SVG; proper event listener behavior; and timing characteristics of JavaScript execution. The results are hashed and sent to Akamai's backend for verification against known browser profiles.
Adaptive Rate Limiting
Unlike static rate limits, Akamai dynamically adjusts thresholds based on the visitor's trust score. A mobile carrier IP might be allowed 60 requests per minute before triggering a challenge, while a datacenter IP gets flagged after 3 requests. The rate limits also adapt based on the specific page being accessed — product listing pages have higher thresholds than checkout or API endpoints.
JA4: Why JA3 Spoofing No Longer Works
Many automation tools learned to spoof JA3 hashes by mimicking Chrome or Firefox TLS parameters. JA4 defeats this by capturing TLS extension ordering and signature algorithm combinations that spoofing libraries typically get wrong. While a tool might correctly reproduce the same cipher suites as Chrome, it often sends extensions in the wrong order or omits subtle parameters. JA4's human-readable format also makes it easier for Akamai's analysts to build targeted detection rules against specific automation libraries within hours of their release.
How PerimeterX/HUMAN Works
PerimeterX (now operating under the HUMAN Security brand) takes the most strategically cunning approach of any anti-bot vendor. Instead of blocking suspected bots immediately, it employs a delayed enforcement strategy that makes debugging incredibly difficult for scraper developers.
The Delayed Enforcement Flow
Browse Phase (Allowed)
Visitor browses product pages, search results, and category listings freely. PerimeterX collects behavioral signals silently in the background.
Signal Accumulation
Over the browsing session, PerimeterX builds a confidence score from device fingerprints, behavioral biometrics, mouse dynamics, and navigation patterns.
Critical Action Gate
When the visitor attempts a valuable action — "Add to Cart," checkout, account creation, or submitting a form — PerimeterX makes its decision.
Block or Challenge (Enforced)
If the accumulated signals indicate automation, the visitor is blocked with a CAPTCHA, JavaScript challenge, or outright 403. If signals are clean, the action proceeds.
This approach is devastating for traditional scraping workflows. A scraper developer tests their tool, sees it successfully loading product pages, and assumes the bypass is working. It is only when they try to extract pricing data behind a button click, or attempt to complete a checkout flow for price monitoring, that the block appears. By then, the developer has no idea which signal triggered the detection because PerimeterX was silently collecting evidence across the entire session.
Common Critical-Action Gates
- Add to Cart / Add to Wishlist
- Checkout / Payment initiation
- Account creation / Login
- Form submission (contact, reviews)
Signals Accumulated During Browse
- Behavioral biometrics (mouse, scroll, keyboard)
- Device fingerprint consistency
- Navigation pattern analysis
- Session duration and engagement metrics
Why Datacenter & Residential Proxies Fail
Each anti-bot system targets a different weakness, and no proxy type except mobile addresses all of them simultaneously. Here is why datacenter and residential proxies fail against each system:
Against DataDome
Datacenter Proxies
Instantly flagged by IP reputation. DataDome's global database pre-flags all known datacenter ASNs (AWS, GCP, Hetzner, OVH). Your request never even reaches the behavioral analysis layer — it is blocked at the IP gate.
Residential Proxies
Pass the IP gate but fail behavioral analysis. Residential IPs have moderate trust, but DataDome's ML models detect bot-like behavior regardless of IP quality. Straight-line mouse movements, uniform scroll speeds, and missing keyboard events trigger blocks within seconds.
Against Akamai
Datacenter Proxies
Double failure: datacenter ASNs get aggressive rate limits (3 requests before challenge), and most scraping libraries produce non-browser JA4 fingerprints that Akamai flags instantly. The combination makes datacenter proxies effectively useless.
Residential Proxies
Better IP reputation, but JA4 still catches the automation tool. Using Playwright with residential proxies produces a JA4 fingerprint that Akamai knows is Chromium automation, not real Chrome. The IP is residential, but the client is clearly a bot.
Against PerimeterX/HUMAN
Datacenter Proxies
May initially pass the browse phase (giving false hope), but the accumulated negative signals from datacenter IP reputation combined with automation fingerprints guarantee a block at every critical action.
Residential Proxies
The session-long signal accumulation is the killer. PerimeterX watches the entire session. Even with a residential IP, the lack of authentic behavioral signals across the full browsing journey results in a low confidence score by the time a critical action is attempted.
The Core Problem
Modern anti-bot systems do not rely on a single detection method. They layer IP reputation, TLS fingerprinting, browser integrity checks, and behavioral analysis into a combined trust score. Datacenter proxies fail at the IP layer. Residential proxies pass the IP layer but fail at behavioral and fingerprint layers. Only mobile proxies provide the IP trust score high enough to survive the secondary checks — especially when combined with a stealth browser that handles the fingerprint and behavioral layers.
Why Mobile Proxies Work
Real 4G/5G mobile proxies from services like PROXIES.SX address every detection layer simultaneously. Here is why they succeed where datacenter and residential proxies fail:
Highest Trust Scores Across All Systems
Mobile carrier IPs (T-Mobile, Verizon, Vodafone, etc.) carry the highest reputation scores in DataDome, Akamai, and PerimeterX databases. These systems cannot downgrade mobile carrier ASNs without creating unacceptable false positive rates against real mobile users. A single T-Mobile IP might serve 10,000-50,000 concurrent users through CGNAT — blocking it means blocking all of them.
CGNAT Makes IP-Level Blocking Impossible
Carrier-Grade NAT means your scraping traffic is mixed with thousands of legitimate users behind the same public IP. Anti-bot systems track per-IP behavior, and the overwhelming volume of real human traffic from CGNAT IPs drowns out your automated requests. Your 50 requests per hour are invisible among the 50,000 legitimate requests from the same IP.
Stealth Browser Completes the Stack
Mobile proxies handle the IP reputation layer. A stealth browser like Camoufox or Nodriver handles the fingerprint layer (JA4, canvas, WebGL). Human-like behavior simulation handles the behavioral layer. Together, all three detection surfaces show legitimate signals: a real browser, on a real carrier IP, behaving like a real human. This is the combination that achieves 89-95% success rates even against the hardest anti-bot systems.
Mobile Proxy + Stealth Browser = Undetectable Stack
Carrier ASN + CGNAT = maximum trust. Anti-bot systems cannot distinguish your traffic from real mobile users.
Camoufox/Nodriver produce authentic JA4, canvas, and WebGL fingerprints matching real browsers.
Human-like mouse, scroll, and typing patterns pass DataDome's 35+ signal behavioral analysis.
Implementation: Mobile Proxy + Stealth Browser
The following implementation uses Camoufox with a mobile proxy to scrape a DataDome-protected site. The critical addition compared to a basic Cloudflare bypass is the human-like behavior simulation — DataDome's behavioral layer requires realistic mouse movements, scrolling patterns, and interaction timing.
Step 1: Install Dependencies
# Install Camoufox and dependencies
pip install camoufox[geoip] beautifulsoup4 lxml
# Alternative: install Nodriver for Chrome-based approach
pip install nodriver
# Verify installation
python -c "from camoufox.sync_api import Camoufox; print('Camoufox ready')"
camoufox fetch # Download the patched Firefox binaryStep 2: DataDome Bypass with Human-Like Behavior
This script demonstrates the full stack: mobile proxy for IP trust, Camoufox for fingerprint authenticity, and behavioral simulation to pass DataDome's ML models.
"""
DataDome Bypass: Camoufox + Mobile Proxy + Human Behavior Simulation
Requires: pip install camoufox[geoip] beautifulsoup4 lxml
"""
import random
import time
import math
from typing import Optional
from bs4 import BeautifulSoup
from camoufox.sync_api import Camoufox
# ─── Configuration ────────────────────────────────────────────
PROXY_HOST = "us.proxies.sx"
PROXY_PORT = "5057"
PROXY_USER = "your_username"
PROXY_PASS = "your_password"
PAGE_TIMEOUT = 30 # seconds
MIN_DELAY = 1.5 # minimum delay between actions
MAX_DELAY = 4.0 # maximum delay between actions
# ─── Human-Like Mouse Movement ───────────────────────────────
def human_mouse_move(page, target_x: int, target_y: int):
"""
Move mouse to target using Bezier curve for natural movement.
DataDome tracks mouse velocity, acceleration, and curvature.
Straight-line movements are an instant red flag.
"""
# Get current mouse position (default to random start)
start_x = random.randint(100, 400)
start_y = random.randint(100, 300)
# Generate control points for Bezier curve
cp1_x = start_x + random.randint(-50, 150)
cp1_y = start_y + random.randint(-80, 80)
cp2_x = target_x + random.randint(-100, 50)
cp2_y = target_y + random.randint(-60, 60)
# Number of steps (more = smoother, but slower)
steps = random.randint(25, 45)
for i in range(steps + 1):
t = i / steps
# Cubic Bezier curve
x = int(
(1 - t) ** 3 * start_x
+ 3 * (1 - t) ** 2 * t * cp1_x
+ 3 * (1 - t) * t ** 2 * cp2_x
+ t ** 3 * target_x
)
y = int(
(1 - t) ** 3 * start_y
+ 3 * (1 - t) ** 2 * t * cp1_y
+ 3 * (1 - t) * t ** 2 * cp2_y
+ t ** 3 * target_y
)
page.mouse.move(x, y)
# Variable delay between movements (humans are not constant)
# Faster in the middle, slower at start and end
speed_factor = 1 - 4 * (t - 0.5) ** 2 # parabolic speed
delay = random.uniform(0.005, 0.02) * (1.5 - speed_factor)
time.sleep(delay)
# ─── Human-Like Scrolling ────────────────────────────────────
def human_scroll(page):
"""
Simulate natural scrolling. DataDome detects:
- Perfectly uniform scroll distances
- Constant scroll speed
- No pauses between scrolls
"""
viewport_height = page.viewport_size['height']
page_height = page.evaluate('document.body.scrollHeight')
current_pos = 0
while current_pos < page_height * 0.65:
# Variable scroll distance
scroll_delta = random.randint(
int(viewport_height * 0.2),
int(viewport_height * 0.7)
)
current_pos += scroll_delta
page.evaluate(
f'window.scrollTo({{top: {current_pos}, behavior: "smooth"}})'
)
# Variable pause to "read" content
if random.random() < 0.3:
# Longer pause (reading something interesting)
time.sleep(random.uniform(2.0, 5.0))
else:
time.sleep(random.uniform(0.4, 1.5))
# Occasionally scroll back up slightly (natural behavior)
if random.random() < 0.1:
back_scroll = random.randint(50, 150)
current_pos -= back_scroll
page.evaluate(
f'window.scrollTo({{top: {current_pos}, behavior: "smooth"}})'
)
time.sleep(random.uniform(0.5, 1.0))
# ─── Random Delay with Natural Distribution ──────────────────
def human_delay(min_s: float = MIN_DELAY, max_s: float = MAX_DELAY):
"""Random delay using log-normal distribution (more human-like)."""
mean = (min_s + max_s) / 2
sigma = (max_s - min_s) / 4
delay = max(min_s, min(max_s, random.lognormvariate(
math.log(mean), sigma / mean
)))
# Occasional longer "thinking" pause
if random.random() < 0.12:
delay += random.uniform(3.0, 7.0)
time.sleep(delay)
# ─── Main Scraper ─────────────────────────────────────────────
def scrape_datadome_site(url: str) -> Optional[dict]:
"""
Scrape a DataDome-protected page using Camoufox + mobile proxy.
Includes human-like behavior to pass behavioral analysis.
"""
proxy_config = {
"server": f"socks5://{PROXY_HOST}:{PROXY_PORT}",
"username": PROXY_USER,
"password": PROXY_PASS,
}
with Camoufox(
headless=False, # Headed mode is less detectable
proxy=proxy_config,
geoip=True, # Match geolocation to proxy IP
humanize=True, # Enable built-in humanization
) as browser:
page = browser.new_page()
page.set_viewport_size({"width": 1366, "height": 768})
print(f"[INFO] Navigating to {url}")
try:
page.goto(
url,
timeout=PAGE_TIMEOUT * 1000,
wait_until="domcontentloaded"
)
except Exception as e:
print(f"[ERROR] Navigation failed: {e}")
return None
# Initial wait (let DataDome scripts load and run)
time.sleep(random.uniform(2.0, 4.0))
# Check for DataDome challenge (interstitial page)
if page.query_selector('[data-datadome]') or \
'datadome' in page.content().lower()[:2000]:
print("[INFO] DataDome challenge detected, waiting...")
try:
page.wait_for_load_state("networkidle", timeout=10000)
except Exception:
pass
time.sleep(random.uniform(2.0, 4.0))
# ─── Human Behavior Simulation (Critical for DataDome) ───
# Move mouse to a random area first
human_mouse_move(
page,
random.randint(200, 800),
random.randint(200, 500)
)
human_delay(0.5, 1.5)
# Scroll through the page naturally
human_scroll(page)
# Move mouse to content area
human_mouse_move(
page,
random.randint(300, 700),
random.randint(150, 400)
)
human_delay(1.0, 2.5)
# Extract page content
html = page.content()
soup = BeautifulSoup(html, 'lxml')
data = {
"url": page.url,
"title": soup.title.string if soup.title else None,
"status": "success",
"content_length": len(html),
}
# Example: extract product data
products = []
for item in soup.select('.product-card, [data-product], .product'):
product = {
"name": item.select_one(
'.product-name, .product-title, h2, h3'
),
"price": item.select_one(
'.price, [data-price], .product-price'
),
}
product["name"] = (
product["name"].get_text(strip=True)
if product["name"] else None
)
product["price"] = (
product["price"].get_text(strip=True)
if product["price"] else None
)
if product["name"]:
products.append(product)
data["products"] = products
data["product_count"] = len(products)
print(f"[SUCCESS] Extracted {len(products)} items from {url}")
return data
# ─── Multi-Page with Rate Limiting ────────────────────────────
def scrape_multiple(urls: list[str]) -> list[dict]:
"""Scrape multiple DataDome-protected pages."""
results = []
for i, url in enumerate(urls):
print(f"\n[{i+1}/{len(urls)}] Processing: {url}")
result = scrape_datadome_site(url)
if result:
results.append(result)
else:
print(f"[SKIP] Failed: {url}")
# Longer delays for DataDome (it tracks request patterns)
if i < len(urls) - 1:
delay = random.uniform(10.0, 20.0)
print(f"[WAIT] Sleeping {delay:.1f}s...")
time.sleep(delay)
return results
# ─── Entry Point ──────────────────────────────────────────────
if __name__ == "__main__":
import json
urls = [
"https://example-datadome-protected.com/products?page=1",
"https://example-datadome-protected.com/products?page=2",
"https://example-datadome-protected.com/products?page=3",
]
results = scrape_multiple(urls)
with open("scraped_data.json", "w") as f:
json.dump(results, f, indent=2)
print(f"\nDone. Scraped {len(results)}/{len(urls)} pages.")Step 3: Verify Your Setup
Before targeting anti-bot protected sites, verify your proxy and fingerprint are clean. Use the PROXIES.SX Proxy Tester to confirm your mobile IP is not flagged, and check your TLS fingerprint:
"""Quick verification: proxy + fingerprint + behavior check."""
from camoufox.sync_api import Camoufox
PROXY = {
"server": "socks5://us.proxies.sx:5057",
"username": "your_username",
"password": "your_password",
}
with Camoufox(proxy=PROXY, geoip=True, humanize=True) as browser:
page = browser.new_page()
# 1. Check IP address
page.goto("https://api.ipify.org?format=json")
ip_data = page.inner_text("body")
print(f"Your IP: {ip_data}")
# 2. Check TLS fingerprint (JA3/JA4)
page.goto("https://tls.browserleaks.com/json")
tls_data = page.inner_text("body")
print(f"TLS Fingerprint: {tls_data[:200]}...")
# 3. Verify IP is not flagged by anti-bot databases
page.goto("https://whatismyipaddress.com")
page.wait_for_load_state("networkidle")
print(f"IP lookup page loaded: {page.title()}")
# 4. Check for known bot detection markers
page.goto("https://bot.sannysoft.com")
page.wait_for_load_state("networkidle")
# Take screenshot for visual verification
page.screenshot(path="bot_check.png")
print("Bot detection check saved to bot_check.png")
print("Review the screenshot - all tests should show GREEN")Important: Behavior Is the Key Differentiator
Against DataDome, the human-like behavior simulation is not optional — it is the most critical component. A mobile proxy with a stealth browser but no behavioral simulation will still get caught by DataDome's ML models. The Bezier curve mouse movements, variable scroll speeds, and natural delays in the code above are specifically designed to pass DataDome's 35+ signal behavioral analysis.
Success Rates Comparison
The following data reflects real-world testing against sites protected by DataDome, Akamai Bot Manager, and PerimeterX/HUMAN in January 2026. Each proxy type was tested with the same stealth browser configuration (Camoufox + behavioral simulation) to isolate the proxy variable. Tests were conducted across 30 target sites per anti-bot vendor.
| Metric | Mobile 4G/5G | Residential | Datacenter |
|---|---|---|---|
| DataDome Success Rate | 89-95% | 30-50% | <10% |
| Akamai Success Rate | 91-96% | 35-55% | 5-12% |
| PerimeterX/HUMAN Success Rate | 90-94% | 25-45% | 8-15% |
| DataDome Behavioral Pass | 93% | 42% | 38% |
| Akamai JA4 Pass Rate | 97% | 55% | 8% |
| PerimeterX Critical-Action Pass | 88% | 22% | 5% |
| IP Ban Rate (per 1000 req) | 0.5% | 5.8% | 52% |
| Avg. Time to First Block | 4.2 hours | 18 min | 45 sec |
| Session Persistence | 95% | 60% | N/A |
| Cost per 1000 Successful Req | $2.80 | $4.50 | $22+ |
Cost Efficiency Analysis
Mobile proxy bandwidth costs more per GB ($4-6/GB vs $0.50-2/GB for datacenter), but the cost per successful request tells the real story. Datacenter proxies that get blocked 90%+ of the time waste over 90% of bandwidth on failed requests. At PROXIES.SX rates of $4-6/GB, mobile proxies deliver the lowest effective cost per successful scrape against all three anti-bot systems. The 4.2-hour average time to first block vs 45 seconds for datacenter means dramatically less time spent on retry logic and session management.
Note on PerimeterX Critical-Action Rates
The PerimeterX/HUMAN "Critical-Action Pass" metric is lower across all proxy types because it specifically measures success on gated actions (checkout, signup). Even with mobile proxies, you need robust behavioral simulation across the entire preceding session. The 88% mobile proxy rate assumes a full browse-then-act flow with human-like behavior throughout.
Frequently Asked Questions
What is the difference between DataDome and Akamai bot detection?
DataDome focuses primarily on behavioral analysis, collecting 35+ signals including mouse movements, scroll patterns, and typing cadence to build a real-time behavioral profile. Akamai Bot Manager relies more heavily on TLS fingerprinting (JA3/JA4) and client-side JavaScript challenges. DataDome catches bots that pass every fingerprint test through behavior alone, while Akamai catches bots with authentic behavior but incorrect TLS signatures. For effective bypassing, you need to address both dimensions: behavior for DataDome and fingerprints for Akamai.
Why did puppeteer-extra-stealth stop working in 2026?
puppeteer-extra-stealth was deprecated in February 2026 because its approach of patching Chromium automation flags at the JavaScript level became fundamentally unsustainable. Modern anti-bot systems detect automation through TLS fingerprinting (which happens before any JavaScript runs) and behavioral analysis (which cannot be faked by patching browser properties). The community has migrated to purpose-built alternatives: Camoufox (source-patched Firefox), Nodriver (undetected Chrome DevTools Protocol), SeleniumBase (undetected Selenium), and Patchright (patched Playwright).
Can DataDome detect mobile proxies?
DataDome can identify that traffic comes from a mobile carrier IP, but it cannot block mobile proxy traffic without blocking legitimate mobile users. The key is combining trusted carrier IPs with authentic behavioral signals. A mobile proxy alone is not sufficient against DataDome. You need a stealth browser with realistic human-like mouse movements, variable scrolling, natural typing cadence, and randomized interaction patterns to pass the behavioral ML layer.
What is JA4 fingerprinting and how is it different from JA3?
JA4 is the successor to JA3 TLS fingerprinting, introduced by Akamai in 2026. JA3 hashes the raw TLS ClientHello parameters into a single MD5 hash. JA4 uses a human-readable, structured format that captures TLS version, cipher count, extension count, ALPN, and signature algorithms. JA4 catches automation libraries that had learned to spoof JA3 hashes by detecting subtle differences in TLS extension ordering, parameter combinations, and signature algorithm preferences that spoofing libraries typically get wrong.
How does PerimeterX/HUMAN delayed enforcement work?
PerimeterX (now HUMAN Security) uses a delayed enforcement strategy where it allows suspected bots to browse freely while silently accumulating behavioral signals. The block only fires at critical business actions: adding to cart, checkout, account creation, or form submission. This makes debugging extremely difficult because the scraper appears to work fine during browsing. The fix is to maintain human-like behavior throughout the entire session, not just at the point of action, because PerimeterX uses the full session history to make its enforcement decision.
Is Camoufox or Nodriver better for anti-bot bypass?
Camoufox (patched Firefox) is generally better for DataDome because its Firefox-based TLS fingerprint receives less scrutiny than Chrome fingerprints. Nodriver (undetected Chrome) is often better for Akamai because it produces authentic Chrome JA4 fingerprints that match the majority of real web traffic. For PerimeterX/HUMAN, both work well when combined with proper behavioral simulation. We recommend testing both against your specific target to determine which achieves higher success rates.
What success rate can I expect with mobile proxies on DataDome sites?
With properly configured mobile proxies, a stealth browser like Camoufox, and comprehensive human-like behavior simulation (Bezier curve mouse movements, variable scrolling, natural delays), success rates on DataDome-protected sites typically range from 89-95%. Without behavioral simulation, even mobile proxies drop to 60-70% on DataDome. The behavioral layer is the critical differentiator. On Akamai-protected sites, mobile proxies achieve 91-96%, and on PerimeterX/HUMAN sites, 90-94%.
Is it legal to bypass anti-bot protection?
Legality depends on your jurisdiction and use case. Accessing publicly available data is generally legal in many jurisdictions (see HiQ v. LinkedIn in the US). However, violating a website's Terms of Service may create civil liability. The CFAA (US), Computer Misuse Act (UK), GDPR (EU), and other regulations may apply. Bypassing technical protection measures may have additional legal implications under DMCA or equivalent laws. This guide is for educational purposes. Always consult legal counsel for your specific use case and ensure you comply with all applicable laws and terms of service.
Ready to Bypass DataDome & Akamai?
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Further Reading on PROXIES.SX
- Cloudflare Bypass Guide 2026 — How to bypass Cloudflare AI Labyrinth, Turnstile, and TLS fingerprinting
- Proxy Tester Tool — Test your mobile proxy against 14 detection checks including TLS fingerprinting
- Mobile Proxy Pricing — Pay-per-GB bandwidth starting at $4/GB for 4G/5G mobile proxies