ab//

// agents

what is Declared vs stealth agent roster?

How notable agent classes declare themselves (UA string, published fetch IP ranges, Web Bot Auth, or nothing). Search crawlers publish verifiable IP ranges; on-behalf-of-a-user browser agents (Operator/Atlas) declare a UA but behave as the operator-synthesis case; orchestrated-browser and raw-CDP stealth automation declare nothing and fall to probabilistic + latency signals.. Fast-decaying declared-agent roster + timeline; several rows speculative. asOf 2026-06-15.

source capture as of 2026-06-15

in the benchmark

Declared vs stealth agent roster is tracked as part of the agents taxonomy. see how tracked tools score against it on the capability matrix.

related

where to go from here