Proprietary Fingerprint Technology
Curlium HTTP client defeats TLS/HTTP2/HTTP3 detection. Scrapium anti-detect browser replicates authentic fingerprints - undetectable by any protection system.
Hardware
CPU, GPU, audio, battery & keyboard profiles
Screen & Platform
Resolution, OS & fonts alignment
Geolocation
Country proxy, language, timezone & latency coherence
Browser Brand
User-agent, navigator, JS APIs & permissions
How to Bypass PerimeterX Bot Protection
Scrapfly's Anti-Scraping Protection (ASP) automatically bypasses PerimeterX bot detection, CAPTCHA challenges, and fingerprinting. Our intelligent bypass architecture adapts in real-time to evade PerimeterX's anti-bot protection layers.
TLS Fingerprint Bypass
Bypass PerimeterX TLS fingerprinting with authentic JA3/JA4 signatures that match real browser handshakes.
Smart Proxy Rotation
200M+ residential and datacenter IPs with AI-powered rotation to bypass PerimeterX IP reputation checks.
Anti-Bot Evasion
Evade PerimeterX bot detection with browser fingerprinting, behavioral analysis, and session management.
REQUEST → asp=true
Your API call with ASP enabled
DETECT → AI ANALYSIS
Shield detection & classification
BYPASS → ADAPTIVE
Fingerprint, Browser, CAPTCHA, Proxy
SUCCESS → CLEAN DATA
HTML, JSON, or Markdown response
One API. Three Powerhouses.
Stop juggling separate services for proxies, browsers, and anti-bot bypass. Our unified platform handles everything with a single integration.
AI Unblocker
- AI-powered anti-bot bypass adapts to new protections automatically
- CAPTCHA solving engine handles reCAPTCHA, hCaptcha, Turnstile
- Dynamic fingerprint generation for authentic browser signatures
- Automatic retry logic with smart backoff strategies
Smart Proxies
- 200M+ residential & datacenter IPs across 200+ countries
- AI selects optimal proxy type based on target site analysis
- Automatic rotation prevents IP burns and rate limiting
- Sticky sessions for multi-page workflows & logins
Cloud Browsers
- Scrapium anti-detect browser & Curlium HTTP impersonation
- Programmable via JSON scenarios - clicks, scrolls, fills
- Zero infrastructure to maintain - we handle scaling
- Screenshot & PDF capture for visual data extraction
Frequently Asked Questions
How does Scrapfly bypass PerimeterX?
Scrapfly's ASP uses real browser fingerprints that match authentic browser signatures. This includes TLS handshakes, HTTP/2 fingerprints, and all browser properties. The system automatically solves challenges and adapts to PerimeterX's detection methods.
Can I test on my specific PerimeterX-protected targets?
Yes. The free plan includes 1,000 API credits with no credit card required. Test your exact targets before upgrading. Scrapfly achieves 95% success on PerimeterX-protected sites.
How much does ASP cost?
Scrapfly's ASP costs 30+ credits per request, varying by target complexity. You pay for what's actually needed, not a flat premium rate. View full pricing details.
What happens when a request fails?
Scrapfly provides detailed error diagnostics showing why requests fail (blocks, timeouts, site issues). Automatic retries handle transient failures, and you're not charged for unsuccessful requests.
What is PerimeterX?
PerimeterX, now part of HUMAN Security, is a bot detection platform that uses behavioral biometrics and predictive analysis to identify automated traffic. It's known for its "Press & Hold" Human Challenge and sophisticated JavaScript-based fingerprinting via the px.js script. Scrapfly handles all PerimeterX protection layers automatically.
How does PerimeterX detect bots?
PerimeterX uses multiple detection layers: (1) JavaScript fingerprinting via px.js that collects device and browser properties, (2) Behavioral biometrics analyzing mouse movements, keystrokes, and interaction patterns, (3) Predictive models that score request risk, and (4) Cookie validation through _px3, _pxvid, and _pxhd tokens. These combine into a risk score that determines whether to allow, challenge, or block. Read more: How to Bypass PerimeterX Anti-Scraping
What is the PerimeterX Human Challenge?
The PerimeterX Human Challenge (often called "Press & Hold") requires users to press and hold a button while behavioral signals are analyzed. It measures timing, pressure patterns, and interaction consistency to distinguish humans from bots. Unlike traditional CAPTCHAs, it focuses on behavioral biometrics. Scrapfly solves PerimeterX Human Challenges automatically.
What are the _px cookies?
PerimeterX uses several cookies for bot detection: _px3 (the main tracking cookie), _pxvid (visitor ID for session tracking), and _pxhd (encrypted header data). These cookies are generated by the px.js script and validated on each request. Without valid _px cookies, requests are blocked or challenged. Scrapfly generates valid _px cookies automatically.
Does Scrapfly support PerimeterX JavaScript rendering?
Yes. Scrapfly uses dedicated cloud browser instances with full JavaScript execution. This is essential for PerimeterX-protected sites as px.js requires JavaScript to collect fingerprints and generate cookies. Enable asp=True and render_js=True to handle PerimeterX's JavaScript challenges automatically.
Can I use Scrapfly for PerimeterX-protected e-commerce sites?
Yes. Scrapfly achieves 95%-100% success on PerimeterX-protected e-commerce, ticketing, and financial sites. Many major online retailers use PerimeterX (HUMAN Security) for bot protection. Our ASP handles all PerimeterX protection layers including Human Challenge, _px cookie generation, and behavioral validation.