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Separate mobile and desktop Lighthouse profiles
Separate mobile and desktop Lighthouse profiles
Performance audit · Mobile + desktop
See what makes your page feel slow before visitors leave.
FastWebsiteAudit runs separate mobile and desktop Lighthouse profiles and keeps the loading evidence next to the technical audit. Use the result to prioritize the fixes that affect real users most.
Run free auditPublic data only·No signup·Evidence included
What we measure
Useful signals, with proof.
FastWebsiteAudit runs separate mobile and desktop Lighthouse profiles and keeps the loading evidence next to the technical audit. Use the result to prioritize the fixes that affect real users most.
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FCP
FCP, LCP, Speed Index, TBT and CLS with run conditions
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Clear separation between lab measurements and optional real-user data
Clear separation between lab measurements and optional real-user data
Related pages: SEO audit · Accessibility audit · Core Web Vitals audit · Full methodology.
Questions, answered
Know what the report can prove.
Are Lighthouse results the same as real-user Core Web Vitals?
No. Lighthouse is lab data under a controlled profile. Real-user data such as CrUX covers different visitors, devices and network conditions.
Why run mobile and desktop separately?
CPU, viewport, network and layout behavior differ. Separate profiles make the evidence more actionable than one blended score.
What do I receive after the audit?
A shareable report with measurements, evidence, priorities, verification steps and JSON/Markdown exports for implementation work.
Ready when you are
Run your free audit with clear evidence.
No signup. No credit card. Just a better website waiting on the other side.