CATEGORY · Performance · B03
INP (Interaction to Next Paint)
INP evaluates responsiveness to clicks, taps and keyboard input through the next paint. The good threshold is 200 ms or less at the 75th percentile.
Full definition
INP evaluates responsiveness to clicks, taps and keyboard input through the next paint. The good threshold is 200 ms or less at the 75th percentile.
Concrete Shopify example
Illustrative example: selecting a size starts several computations and the button appears frozen. Record the interaction to locate input, processing and presentation delays.
My take
Test important mobile interactions and reduce identified blocking work. A visit without interaction does not demonstrate good INP.
Related terms
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Sources and editorial context
Teo Comyn · Updated
Technical references consulted for this revision. Illustrative examples are not measured client results. Check the current documentation and your store before applying a change.
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