Web Vitals & performance
Understand field performance by metric, percentile and segment.
On this page
Metrics collected
| Metric | Meaning |
|---|---|
| LCP | Largest Contentful Paint: loading of the largest visible content |
| INP | Interaction to Next Paint: interaction responsiveness |
| CLS | Cumulative Layout Shift: visual instability |
| FCP | First Contentful Paint: first content rendering |
| TTFB | Time to First Byte: initial response timing |
Collection begins after analytics permission. Browser support and actual interaction affect which metrics exist. Weeveo's current tracker observes numeric performance entries and sends its report during page lifecycle events; absent data does not mean a perfect score.
Read the report
Choose the metric, supported percentile and date range. Review the distribution and timeseries, then compare page, page title, device or browser breakdowns. A percentile is a position in a distribution, not the arithmetic average.
Investigate a regression
- Match the deployment date and reporting window.
- Check whether device or browser mix changed.
- Isolate the affected page or device.
- Compare sample volume and consent coverage.
- Use your own performance tooling to reproduce and fix the page.
API equivalents
get_performance_summary, get_performance_timeseries and get_performance_breakdown expose the supported percentiles and metric enums.
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