Site Vitals
Daily Core Web Vitals tracking alerts you to speed degradation before search visibility drops.
What are Core Web Vitals?
Google’s Core Web Vitals measure page experience:
- LCP (Largest Contentful Paint) — how fast your main content loads (target: under 2.5s)
- INP (Interaction to Next Paint) — responsiveness to user input (target: under 200ms)
- CLS (Cumulative Layout Shift) — visual stability as the page loads (target: under 0.1)
Slow sites get demoted in search rankings. Even small improvements in these metrics lift visibility across your content.
How to use
- Go to Dashboard → Site Vitals
- Select a date range (last 7, 30, or 90 days)
- View trend graph showing LCP, INP, CLS over time
- Check page-level breakdown — which pages are slowest?
- Click a page to see detailed score history and recommendations
Interpreting your scores
Each metric has three tiers:
- Good (green) — excellent page experience
- Needs Improvement (orange) — acceptable, but improvements possible
- Poor (red) — will hurt rankings; fix urgently
Your overall page experience score is “good” if all three metrics are good.
How it works
Kyni pulls daily snapshots from Google PageSpeed Insights API at 03:30 UTC. The data shows your page’s real-world performance on user devices — not just local lab measurements.
Page-level breakdown
Each published URL gets its own score history:
- LCP, INP, CLS per page
- Trend visualization (30 days shown by default)
- Field data (real user experience) vs lab data (controlled test)
Common issues and fixes
High LCP (slow main content load)
- Server-side rendering is slow
- Large images above the fold
- Render-blocking JavaScript
- Fix: optimize server, compress images, defer non-critical JS
High INP (slow interaction response)
- JavaScript processing time
- Main thread blocked by heavy computation
- Fix: split work into smaller tasks, use web workers, lazy-load code
High CLS (jumping layout)
- Ads, embedded content, or images without set dimensions
- Fonts loading and changing the layout
- Fix: reserve space for images, load fonts early, avoid layout shifts in animations
Why it matters
Fast sites rank higher. Google confirmed in 2021 that Core Web Vitals are ranking factors. A 0.1-second improvement in LCP can lift rankings by 1–2 positions in competitive niches.
Slow pages also have lower click-through rates (users abandon slow sites) and higher bounce rates (they leave before reading).
Cost
Included in all plans — no per-check credit cost.
FAQ
How often is Site Vitals updated? Daily at 03:30 UTC. Kyni pulls the latest snapshot from PageSpeed Insights.
Why do my PageSpeed scores differ from Kyni’s vitals? PageSpeed shows both lab (controlled test) and field (real user) data. Kyni focuses on field data (what Google uses for ranking). Lab scores can be optimistic.
Can I improve my vitals by just using Kyni? Not directly. Site Vitals is a monitoring tool, not a fixer. You’ll need to work with your hosting provider or developer to optimize server speed, images, JavaScript, etc. Kyni helps you track progress as you improve.
Which pages does Kyni track? All published URLs that Kyni knows about (generated articles, manual content in your plan, etc.). Static pages on your site won’t appear unless you add them manually.
Related
- SEO Audit — comprehensive site health checks including speed
- Indexation — ensure Google can see your pages
- Autopilot — refresh stale content before traffic drops