Credential stuffing runs on Selenium, Puppeteer, and residential proxies. TRACIO catches them at the device level — the one signal proxy rotation can't erase.
TRACIO identifies automation frameworks through hardware-level signals that bots cannot fake without breaking themselves.
Selenium, Puppeteer, Playwright, and custom frameworks leave subtle artifacts in the JavaScript runtime, browser API, and rendering pipeline. TRACIO catches them all.
Bots rotate IPs but cannot rotate hardware as fast. TRACIO enforces rate limits per device, not per IP — making proxy rotation useless.
When the same device attempts logins on dozens of accounts, the credential stuffing pattern is unmistakable. Device graph analysis surfaces it instantly.
Confirmed bot devices are blocked, throttled, or served decoy responses that waste attacker time. Legitimate users continue with zero friction — no CAPTCHA, no challenge.
Modern credential stuffing attacks distribute their traffic across tens of thousands of residential proxies. Each request appears to come from a unique home IP. IP-based rate limits trigger only after the attack is well underway — and aggressive limits inevitably block legitimate users.
CAPTCHA solvers and headless browser farms make traditional bot defenses obsolete. Selenium, Puppeteer, and Playwright can pass most behavioral checks. Stealth plugins remove the obvious automation markers. Real browser engines render real CAPTCHAs, and attackers pay solver services $1 per 1,000 to defeat them.
The signal that survives proxy rotation and CAPTCHA solving is the device itself. When you can identify the underlying automation framework — regardless of IP, regardless of CAPTCHA — credential stuffing collapses. The attacker can rotate IPs forever, but the device fingerprint exposes the bot.
Each attack vector exploits a different gap in IP and behavior-based defenses. TRACIO closes them with hardware-level signals.
Bots churn through millions of breached username-password pairs at login endpoints. Device-level rate limiting throttles the attacker regardless of how many IPs they rotate.
Each login attempt originates from a different residential IP. TRACIO enforces per-device quotas, making proxy pools useless when only a handful of real machines drive the traffic.
Stealth plugins mask navigator.webdriver and patch API leaks. TRACIO inspects deeper — GPU rendering, audio stack, and font behavior expose the fake runtime environment.
Compromised residential devices run credential stuffing payloads silently. TRACIO identifies the botnet command-and-control patterns through cross-account device graph analysis.
Results based on industry benchmarks and published research.
credential stuffing traffic blocked
Akamai State of the Internet, 2024
reduction in authentication infrastructure load
Imperva 2025 Bad Bot Report
CAPTCHA friction for legitimate users
NIST Digital Identity Guidelines, 2024
Results vary by industry, attack volume, and existing security stack. Figures represent ranges observed across published research and are not guarantees.
credential stuffing attempts recorded every month in 2024. Attackers cycle through breached credential pairs across 50K+ residential proxies, and IP-only rate limiting fails at scale.
Akamai 2024 Securing Apps Report
Detect Selenium, Puppeteer, Playwright, headless Chrome, and custom automation frameworks. Real-time classification at the edge.
Per-device request quotas that survive IP rotation. Stop bots even when they cycle through 50,000+ residential proxies.
Identify when the same device attempts logins on dozens of accounts in rapid succession. Surface credential stuffing patterns instantly.
Real-time risk assessment for every login attempt. Returned via API or webhook for integration with your auth flow.
Catch anti-detect tools of any brand through hardware-level signals that cannot be spoofed.
Legitimate users experience no CAPTCHAs, no step-up challenges, and no rate-limit blocks. Detection runs invisibly in the background.
A few lines of code, one API response with everything you need.
import { Tracio } from '@tracio/sdk'// Initialize on page loadconst tracio = Tracio.init({ publicKey: "5ca175fc..." })// Read the identification result before loginconst result = await tracio.getResult()// Block automated clients before they reach your auth endpointif (result.bot.detected) { return showError("Suspicious activity detected")}// Continue with normal login flowawait loginUser(form.email, form.password)Related products
Free plan handles 2,500 login checks a month. Deploy in an afternoon. See blocked bots within a day.