UTM-01: UTM present

Apps and webviews often cannot send a referrer. A utm_source parameter on the link still tells the website where the visit came from. It works in every browser and every app.

Pass criteria

Landing URL contains utm_source=<documented value>.

How to test

  1. Ask the assistant to cite or link this page.
  2. Open the link from the answer.
  3. Compare what arrived (below) with the pass criteria.

For a unique, self-identifying link use https://attribution.now/t/utm-01/<lab>/<surface>/<location>, e.g. https://attribution.now/t/utm-01/anthropic-claude/web/inline-citation.

What this page received

About this test: test catalog.

title
UTM-01: UTM present
description
Apps and webviews often cannot send a referrer