AI-powered engine harvesting 1,000+ browser signals to compute a stable visitor ID across sessions, incognito mode, and browser updates. 99.5% accuracy.
Watch as we analyze your browser in real time. No data is stored or sent to any server.
Real analysis of YOUR device -- nothing is simulated.
Get API AccessEach signal category adds layers of identification certainty
Everything you need for device identification.
AI-powered signal harvesting across hundreds of browser, device, and network dimensions for maximum identification accuracy.
Rock-solid identification that survives session boundaries, incognito tabs, and browser version upgrades.
ML models assign a dynamic confidence weight to each identification based on signal quality and freshness.
A three-tier signal architecture absorbs minor signal drift while preserving identification accuracy.
AI-driven algorithms reconnect returning visitors even when individual signals have shifted.
Encrypted first-party cookies backed by a localStorage fallback for maximum cross-session persistence.
Get device identification running in under a minute.
$ npm install @tracio/clientimport Tracio from '@tracio/client'const tc = await Tracio.load({ apiKey: 'tk_live_...' })const result = await tc.get()Enterprise-grade performance across all metrics.
| Metric | tracio.ai | Competitor |
|---|---|---|
| Accuracy | 99.5% | ~95% |
| Signals Collected | 1,200+ | ~400 |
| Response Time (p95) | <30ms | ~80ms |
| Bundle Size | 128KB | ~350KB |
| Cross-Browser Persistence | Yes | Limited |
Same visitor ID even in incognito mode and different browsers
Understand exactly how each capability works under the hood.
Three steps to actionable device intelligence.
Our lightweight SDK collects 1,000+ browser signals in under 50ms with zero impact on user experience.
Server-side AI engine analyzes signals, applies advanced matching, and computes confidence scores.
Get a stable visitor ID, bot detection results, smart signals, and IP intelligence in a single API response.
Over 1,000 signals across 8 categories for maximum accuracy
Get started with just a few lines of code.
import Tracio from '@tracio/client';const tc = await Tracio.load({ apiKey: 'your-api-key' });const result = await tc.get();console.log(result.visitorId); // "X7fh2Hg9Lk..."console.log(result.confidence); // 0.995console.log(result.signals); // 1,000+ signalsSee exactly what data you receive from every API call.
{ "requestId": "req_8f2k9x3m", "visitorId": "X7fh2Hg9LkQp3Nv", "confidence": 0.995, "firstSeenAt": "2026-01-15T08:32:00Z", "lastSeenAt": "2026-03-14T14:22:18Z", "visitorFound": true, "ip": "203.0.113.42", "browserName": "Chrome", "browserVersion": "124.0.6367.91", "os": "macOS", "osVersion": "14.4", "device": "Mac", "incognito": false, "signalCount": 1000, "stableHash": "a3f8c1d9e7b24...", "processingTimeMs": 12}Built for speed. Optimized to never impact your user experience.
Your data stays yours. Always.
We never collect names, emails, passwords, or any personally identifiable information. Our signals are derived from browser configuration and hardware characteristics only.
All data between the client SDK and your server is encrypted using TLS 1.3 with an additional application-level encryption layer using AES-256-GCM.
Choose EU or US regions for data processing. All visitor data encrypted at rest and in transit. You control retention and access policies.
Built for GDPR, CCPA, and ePrivacy compliance. Zero third-party data sharing, configurable retention policies, and complete data subject access request support.
See how teams use Device Identification to solve real-world problems.
Recognize returning fraudsters across sessions, VPNs, and incognito mode.
Learn moreFlag login attempts from unrecognized devices before attackers gain access.
Learn moreDetect when one person creates multiple accounts on the same device.
Learn moreGet started in minutes. No third-party data sharing, full data ownership, complete control.
Join teams protecting their platforms with tracio.ai