Performance Tracking Dashboard
Live measurements from this session alongside a guide to monitoring Core Web Vitals and meeting Google's speed requirements for launch.
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Live Session Metrics
Real measurements captured from this page load via the browser's Performance API. Interact with the page, then watch INP and CLS update.
LCP
Largest Contentful Paint
When the largest visible element finishes rendering.
INP
Interaction to Next Paint
Responsiveness to user input across the session.
CLS
Cumulative Layout Shift
Visual stability — how much the layout shifts.
FCP
First Contentful Paint
When the first content is painted.
TTFB
Time to First Byte
Server response time before content arrives.
These are lab measurements for this dashboard route, not field data for your marketing pages. To measure the homepage, treatments, and other pages, navigate there and run PageSpeed Insights — or instrument the whole site with RUM (see the monitoring guide below).
Search Performance
How patients are discovering the site through Google search — which queries and regions are driving traffic to Cuban medical tourism.
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Audience & Treatment Pages
Where your international patients are coming from and which Cuban treatment pages they visit most — pulled live from your connected Google Analytics 4 property.
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Monitoring Tools
The four tools Google recommends for measuring and tracking Core Web Vitals on a live domain.
PageSpeed Insights (PSI)
Enter smcsalud.org to get lab (Lighthouse) + field (CrUX) CWV scores per URL. The fastest one-off check for launch readiness.
Google Search Console
Core Web Vitals report aggregates 28-day CrUX data across all your pages and flags URLs failing INP/LCP/CLS. The best ongoing monitor.
Chrome UX Report (CrUX)
Real-user field data from opted-in Chrome users. Verify your domain is included once it has enough traffic; this is what Google ranks on.
Lighthouse (DevTools)
Run locally in Chrome DevTools (Lighthouse tab) for a full audit: performance, accessibility, SEO, and actionable opportunities.
Launch Readiness Guide
A step-by-step plan to verify, monitor, and maintain Google's speed requirements.
Check launch readiness now
Run the live site through PageSpeed Insights (link above) for both mobile and desktop. All Core Web Vitals must be 'Good' (green) for the homepage and primary landing pages.
Register with Search Console
Add smcsalud.org to Google Search Console and verify ownership (we've added the HTML-tag meta placeholder in index.html). Open the Core Web Vitals report after a few days of traffic.
Monitor continuously
Review the Search Console CWV report weekly before and after launch. It aggregates real-user data and surfaces any URL that drops into 'Poor' or 'Needs Improvement'.
Act on regressions
If INP rises, profile slow interactions in DevTools Performance panel. If LCP rises, check the LCP element (usually the hero image) and ensure it's preloaded and served at the right size. If CLS rises, reserve space for ads/images/fonts.
Optimize the biggest wins first
Compress and lazy-load images, set font-display: swap (already done), preconnect to key origins (already added), and minimize render-blocking JS. Each fix should be re-measured in PSI before shipping.
Google's Thresholds
A metric must be at or below the "Good" value for at least 75% of page loads (CrUX).
LCP
Good: ≤ 2.5s
Poor: > 4.0s
INP
Good: ≤ 200ms
Poor: > 500ms
CLS
Good: ≤ 0.1
Poor: > 0.25