evercookie is a javascript API available that produces extremely persistent cookies in a browser. Its goal is to identify a client even after they've removed standard cookies, Flash cookies (Local Shared Objects or LSOs), and others.
There are no reported vulnerabilities
30 Day SummaryMay 10 2026 — Jun 9 2026
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12 Month SummaryJun 9 2025 — Jun 9 2026
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