Independent check of one page
Measure when the largest main block appears
PageSpeed Insights reports LCP, its element and delay causes. Test the exact URL and device, and distinguish real-user field data from a laboratory run.
Use PageSpeed Insights
- Open PageSpeed Insights.
- Enter the complete URL, not only the domain.
- Review Mobile and then Desktop.
- Find Largest Contentful Paint and the LCP element.
- Save the full report link and screenshot.
Interpret the value
| Value | Assessment | Action |
|---|---|---|
| up to 2.5 s | Good | Preserve the result |
| 2.5–4 s | Needs improvement | Inspect timing phases |
| over 4 s | Poor | Prioritise repair |
Why results differ
- field data covers 28 days while lab data is one run;
- server, network, cache and third-party code vary;
- mobile and desktop can have different LCP elements;
- another page using the template may contain a heavier image.
Our automatic audit reads laboratory LCP from the fresh mobile PageSpeed Insights JSON for the submitted URL. Run the laboratory test 3–5 times for independent confirmation and compare the median. The check applies only to the submitted page, while repair pricing follows template count. Order the repair.
