Zero-click rates describe measured behavior in a sample; they do not, by themselves, price the value of search to your business.
01
Device mix
Mobile and desktop result pages differ in layout, features, and behavior. A blended rate can conceal the environment where the meaningful change occurred.
02
Query-source bias
Panel, browser, clickstream, and keyword-set studies observe different populations. The sample determines which kinds of searches can appear in the result.
03
Opportunity is not click share
Brand exposure, direct follow-on behavior, assisted conversions, and qualified commercial visits may move differently from total clicks. Use the study to frame a question, then inspect your own exposure.
This field note is a decision aid, not a universal ranking rule. Verify the conditions on your own site.