See what's slowing your site down.
Enter your website to see how fast it feels for real visitors—and the first thing to fix if it is slow.
Overall speed
What gets checked
The audit separates Chrome field data from lab-test noise.
PageSpeed scores are useful, but they can disagree with what Chrome field data shows. nimo starts with field data when it exists, explains what to trust first, then uses diagnostics to point at the cause.
Chrome field data
See whether public CrUX data shows Chrome users waiting for your main content.
Lighthouse diagnostics
When field and lab data disagree, nimo explains what to trust first and why.
Prioritized fixes
Instead of a long warning list, nimo tells you which issue to fix first and why it matters.
Core Web Vitals
The metrics are technical. The answer should not be.
nimo translates the metrics into what a visitor experiences and what your team should do next. The audit comes first; the glossary is there when a flagged metric needs more context.
LCP
Largest Contentful Paint
How long visitors wait for the main content.
Read the audit lensINP
Interaction to Next Paint
Whether taps and clicks feel delayed.
Read the audit lensCLS
Cumulative Layout Shift
Whether the page jumps while loading.
Read the audit lensTTFB
Time to First Byte
Whether the server responds quickly enough.
Read the audit lensBest for
Use it when a generic speed score is not enough.
PageSpeed Insights says you pass, but Search Console says you fail.
A client wants proof that performance actually improved.
Your WordPress or Shopify site slowed down after plugins, apps, or tracking tags.
You need a plain-English explanation before asking a developer to make changes.
Run the audit before you change another plugin setting.
Paste your URL, get the result, and see whether the next fix should be image priority, render-blocking CSS, scripts, server response, or something else.