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Site Performance

Core Web Vitals and speed, under control.

Measure LCP, INP and CLS with real-world and lab data, and find out what slows down every page.

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Performance is measured with Core Web Vitals: LCP for how fast the main content appears, INP for how quickly the page reacts to clicks and taps, CLS for layout stability. Miraqo collects them for every page crawled by the audit from two sources that complement each other: Lighthouse, which simulates the load in the lab and gives the technical detail, and CrUX, the data from real Chrome users over the last few weeks. Mobile and desktop stay separate, because the numbers often differ.

For each page the diagnostics say what slows the load: heavy images, fonts not preloaded, render-blocking stylesheets, elements that shift the layout. With one request to the AI you get the fixes ordered by impact on the score and a development ticket already written to hand to whoever touches the code. Every scan is kept, so after a fix you compare the values on the same page.

What you can do

Site Performance: everything you need, ready to use.

Core Web Vitals (LCP, INP, CLS)
Field data (CrUX) alongside Lighthouse lab data
Detailed diagnostics: what slows down loading and why
Visually map the elements that cause layout shift
Spot unpreloaded fonts or missing critical CSS causing a flash of unstyled text (FOUT)
Practical fix suggestions ranked by impact on the score, page by page
How it works

Site Performance: simple to set up, solid in results.

1
Run the site's SEO audit
Start a scan from the Audit module: Miraqo automatically collects speed and Core Web Vitals data for the pages it crawls.
2
Miraqo measures Lighthouse and CrUX
Crawled pages are lab-tested and compared against real user data (Core Web Vitals).
3
Get optimisation recommendations
Request an AI analysis and follow its recommendations to fix the issues.
Use cases

Site Performance: when to use it

Diagnose slow pages before they affect rankings
Verify Core Web Vitals after a technical fix
Include performance data in the technical report shared with the client
Explore Miraqo

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Help center

Site Performance: step-by-step guides

Performance and Core Web Vitals
The Performance page measures real Core Web Vitals (PageSpeed Insights), shows real-user CrUX data, per-page Lighthouse diagnostics and generates the…
Run your first SEO audit
How to launch a technical scan of your site, read the score and navigate the 10 report tabs (issues, pages, links, resources, Core Web Vitals,…
Configure the project's SEO audit
Configuring the project's SEO scan — scheduling (manual or automatic, weekly/monthly), maximum number of pages, JavaScript rendering, URL…
All guides
FAQ

Questions about site performance

From two sources that complement each other: Lighthouse simulates the load in a lab and gives you the technical detail, while CrUX (Chrome User Experience Report) collects what real Chrome users actually experienced on that page over the past few weeks.

LCP measures how fast the main content loads, INP measures responsiveness to interactions, and CLS measures visual stability.

You can re-run the analysis whenever you like; field data (CrUX) updates on Google's own cadence, typically every 28 days.

Yes. Each page is tested separately for both devices, since performance can differ significantly between them.

Yes, always. Every scan is kept. Ship a fix, scan again, compare before and after.

Yes, Core Web Vitals are a Google ranking factor. Improving them helps both rankings and user experience.

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