Glossary

Key terms behind fingerprinting, browser profiles and proxies — explained with sources from browser documentation and standards.

New to the topic? Start with what an antidetect browser is.

A–Z

Browser fingerprint — A combination of browser and device characteristics that can identify a browser without cookies.
Browser profile — A separate set of browser data — cookies, history, settings, extensions — kept apart from other profiles.
Canvas fingerprinting — Identifying a device from tiny differences in how it renders an HTML canvas drawing.
Residential proxy — A proxy whose exit IP belongs to a consumer internet connection rather than a datacenter.
Sticky session (proxy) — A proxy setting that keeps the same exit IP across consecutive requests for a period of time.
Timezone and geolocation mismatch — When the location implied by a connection's IP address disagrees with the browser's time zone or reported coordinates.
User agent (User-Agent string) — The browser and OS identification a browser sends in the User-Agent header and exposes to JavaScript.
WebGL fingerprinting — Using WebGL graphics information and rendering output to identify a device.
WebRTC leak — When WebRTC reveals an IP address that differs from the proxy or VPN address a site otherwise sees.