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AliExpress keeps multipoint Bluetooth headphones active with WebAudio fingerprinting

AliExpress uses WebAudio fingerprinting to keep Bluetooth headphones active, raising privacy concerns for web developers.

Steady

30

signal score

as of 5d ago

🔗 2

sources · aliexpress

Cooling

7-day est. ~0

Why this scored 30

every term, weighted
Velocity+0.0 / 40 max

Engagement gained per hour since the last capture, against the fastest item on its own source

Acceleration+10.1 / 25 max

Whether that velocity is itself speeding up, as a per-hour rate

Cross-source spread+12.5 / 25 max

How many independent communities are talking about the same entity

Recency+9.0 / 10 max

Decays to zero over 14 days

Saturation penalty1.1 / 30 max

Subtracted once something is big and old — we rank what's next, not what's peaked

Composite30.5

Weights are hand-tuned, not learned — we're calibrating them against realized trends as history accumulates. On a topic's first sighting there's no previous reading to compare against, so acceleration starts from a neutral prior rather than a measurement, and velocity falls back to engagement over its whole lifetime until a second reading exists. Full methodology

Outlook

low confidence · estimate, not a guarantee

7-day

~0

range 00

14-day

~0

range 00

30-day

~0

range 00

Signal history

7-day window (free)

— — projected trajectory (estimate, not a guarantee)

Entities

aliexpresswebaudio
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