5 min read · Updated for INP (2026)
What a Website Performance Audit actually tells you
A Website Performance Audit runs a real Google PageSpeed Insights test on your URL and scores your site against Google's Core Web Vitals thresholds for both mobile and desktop. You get a 0–100 performance score, a pass/fail badge on every metric, and a shareable URL you can hand straight to your developer.
Page speed isn't a vanity metric. It's a confirmed Google ranking factor and one of the strongest predictors of bounce rate. A slow site is a leak in the bottom of your funnel — every ad click, every SEO win, every shared link drips out before the visitor sees what you sell.
The three Core Web Vitals, in plain English
How fast the biggest visible thing loads.
How much the page jumps around as it loads.
How fast the page responds when a user taps.
How it works — three steps, sixty seconds
Who it's for
- Owners and GMs who feel their site is slow but can't prove it to their developer
- Marketing teams running paid ads and bleeding budget to slow landing pages
- Founders comparing their site to a competitor's and wanting a credible head-to-head
- Agencies and freelancers running discovery on a new client engagement
What the results mean
Fast. Defend it — every new image and script can quietly regress this score.
Functional, but bleeding conversions. Most fixes here pay for themselves in two months.
Google treats this as a bad user experience. Rankings, ads, and direct visits all suffer.
The three fixes that move the needle most
- 1. Compress and lazy-load images. Almost every failing LCP is an oversized hero image. Serve WebP or AVIF, set width/height, preload the LCP image, and lazy-load everything below the fold.
- 2. Reserve space for ads, embeds, and fonts. Layout shift comes from things that load late and push content down. Reserve their dimensions in CSS so the page stays still while it loads.
- 3. Defer non-critical JavaScript. Tag managers, chat widgets, and analytics scripts are the usual INP killers. Defer or async them so the main thread is free when the user taps.
See exactly where your site is leaking.
Free. Mobile + desktop. Shareable branded report.
Run my Performance Audit →Frequently asked questions
What is a Website Performance Audit?+
A Website Performance Audit runs a real Google PageSpeed Insights test on your URL and scores your site against Google's Core Web Vitals thresholds — Largest Contentful Paint (LCP), Cumulative Layout Shift (CLS), and Interaction to Next Paint (INP) — for both mobile and desktop. You get a 0–100 performance score and a pass/fail badge on each metric.
Why does page speed matter for conversions?+
Google's own data shows that the probability of a mobile visitor bouncing rises 32% when load time goes from 1s to 3s, and 90% when it goes from 1s to 5s. Slow sites lose leads before the user ever sees the offer. Page speed is also a confirmed Google ranking factor — slow pages get demoted in search.
What is a good LCP, CLS, and INP score?+
Google's official thresholds: LCP (largest paint) should be 2.5s or less. CLS (visual stability) should be 0.1 or less. INP (interaction responsiveness) should be 200ms or less. Anything in the amber band (LCP 2.5–4s, CLS 0.1–0.25, INP 200–500ms) is 'needs improvement.' Anything beyond is 'poor' — Google treats these pages as a bad user experience.
Mobile vs. desktop — which score matters more?+
Mobile. Google uses mobile-first indexing, and for most US small and medium businesses over 60% of traffic is mobile. A site that passes on desktop but fails on mobile is still losing the majority of its traffic. The audit measures both so you can see the gap.
Is the audit really free?+
Yes. No credit card. No signup. You get the full mobile and desktop report plus a shareable URL you can send to your team or developer.
What do I do if my scores are red?+
Three highest-leverage fixes: compress and lazy-load images (almost always the LCP culprit), reserve space for ads and embeds (kills CLS), and defer non-critical JavaScript (the usual INP killer). For a fast site that stays fast, you want this work integrated into a continuous performance budget — which is exactly what our CMO-led team does for clients.
Stop guessing. Start measuring. Start winning.
A CMO that never sleeps, backed by AI that never stops optimizing. We'll turn the red into green and tie every fix to real revenue.
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