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get_crux_data

Query the current 28-day Chrome UX Report aggregation.

Parameters

Parameter Type Required Default
target string Yes -
target_type string No url
form_factor string No all
metrics string[] No all available

target_type is url or origin. Origin targets cannot contain a path, query, or fragment. form_factor is all, phone, tablet, or desktop.

Omitting metrics requests every metric available for that target. Current CrUX metrics include Core Web Vitals, FCP, TTFB, RTT, navigation types, form factors, LCP resource type, and LCP image subparts.

The response preserves histograms, p75 values, fractions, collection dates, and URL normalization.

API enablement

Enable the Chrome UX Report API and allow it in the API key restrictions. Enabling only PageSpeed Insights is insufficient.