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browser fingerprinting

Browser fingerprinting became effective enough that platforms could link accounts across cleared cookies and separate logins. That capability serves fraud prevention, and it also breaks legitimate work: agencies managing dozens of client advertising accounts, e-commerce sellers operating regional storefronts, QA engineers testing device matrices, and researchers who need to observe what different user profiles are shown. Antidetect browsers were built for those users, and a substantial share of the market still consists of them.

• Canvas and WebGL: rendering output is perturbed with a stable per-profile offset, so the signature is unique but consistent across sessions.
• Font and plugin enumeration: the reported list is drawn from a realistic pool rather than the host machine's actual configuration.
• Hardware descriptors: CPU core count, device memory and screen dimensions are set per profile.
• Network: each profile routes through its own residential or mobile proxy, so IP reputation matches the claimed geography.