Browser

Session Storage

SessionStorage availability

Live Playground

Analyzing your browser...0%

API Docs

Endpoint

GET /api/fingerprint/session-storage

Examples

About

SessionStorage fingerprinting checks window.sessionStorage availability and behavior. Similar to LocalStorage but session-scoped, SessionStorage may be disabled in privacy modes or restricted environments. The technique tests storage limits, persistence behavior, and cross-tab isolation. SessionStorage typically has similar availability to LocalStorage but different persistence semantics. Testing both storage APIs together reveals browser storage policies and privacy modes. Unavailability suggests strict privacy settings or restricted environments.

Use Cases

•Session persistence
•Browser storage
•Privacy detection
•Temporary data capability

Other Fingerprints

Compare related fingerprint signals

Move from this collector to the CreepJS signal index, live checker, API docs, and other high-value fingerprinting explainers.

Core pages

Browser Fingerprinting PlatformRun a privacy-first browser fingerprint check and learn what websites can infer about your device.Fingerprint CheckerTest your browser privacy with a live fingerprint scan, collector coverage, and privacy leakage analysis.IP Risk CheckerCheck IP risk, ASN, geolocation, proxy, VPN, Tor, datacenter, and routing signals through the CreepJS API.Browser Fingerprint SignalsBrowse the full CreepJS library of browser fingerprinting signals, including canvas, WebGL, WebRTC, fonts, storage, and privacy checks.DocumentationRead the CreepJS API, SDK, collector, and integration documentation for privacy-first browser fingerprinting.API PlaygroundGenerate a token, inspect sample payloads, and test CreepJS browser fingerprinting API calls.What Is Browser Fingerprinting?Learn how browser fingerprinting works, which signals are collected, and how privacy tools reduce tracking.

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