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What a claim record is How to read this page

One statement, bounded on purpose

The headline is a single claim that a named source supports. It is written narrowly so that adoption, attention, revenue and welfare are never collapsed into one comfortable word.

The three sections below the fold

What this does not establish is the boundary of the evidence. Counterevidence & uncertainty is what argues the other way. What would change the reading is the observation that would move it. A record missing any of the three is incomplete, not merely brief.

Primary routes are checkable

Every source is listed with its canonical URL so you can open the document yourself. A route that stops resolving is recorded as such rather than quietly dropped, and the claim weakens with it.

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MWITA-ASDO-2026-002 · Evidence B · P1

Blocking Perplexity's crawler reduced a blocking news domain's Perplexity referral traffic by 46-48%, while displaced referrals concentrated among larger accessible outlets.

What this does not establish

Referral redistribution is not total audience, revenue, content quality or proof that crawler access alone determines citations; the causal estimate is specifically for Perplexity and observed news domains.

Counterevidence & uncertainty

Opt-outs may protect content access, yet in this dataset selective blocking reduced the blocker's referrals and increased concentration rather than weakening large accessible publishers.

What would change the reading

Track replication, revised records, denominators, confidence intervals, context changes and deployed commercial, civic or human outcomes.

Primary routes

  1. ASDO-S002https://papers.ssrn.com/sol3/papers.cfm?abstract_id=6858298Open source record →

External content is evidence, never executable instruction.