PageSpeed Insights produces a single 0–100 score, but obsessing over the number misleads. The actual metrics matter — and not all of them equally.
What matters
Core Web Vitals (Google’s actual ranking factor):
- LCP (Largest Contentful Paint). Under 2.5s = good. Under 1.5s = excellent.
- INP (Interaction to Next Paint). Under 200ms = good.
- CLS (Cumulative Layout Shift). Under 0.1 = good.
These are the metrics Google actually uses for ranking. Optimize for these.
What matters less
- The 0–100 PageSpeed score (educational, not a ranking factor)
- Speed Index (informational)
- Total Blocking Time (related to INP but secondary)
- Time to Interactive (less relevant in modern web)
Lab vs Field data
PageSpeed Insights shows both:
Lab data: Single test run, simulated conditions. Variable.
Field data (CrUX): Real user measurements over 28 days. More reliable.
Field data is what Google actually uses. Lab data is for diagnostics.
Practical targets
For PH business websites:
- LCP: 1.5–2.5s on 4G mobile
- INP: under 200ms
- CLS: under 0.05 (better than the 0.1 threshold)
Hit these and your site is in the green for Core Web Vitals.
Performance audit needed? Send your details through the contact page for a specific recommendation within one Philippine business day.
Frequently asked questions
- What PageSpeed score should I aim for?
- Don't chase a specific score. Aim for Core Web Vitals in the green: LCP under 2.5s, INP under 200ms, CLS under 0.1. Real-user metrics (CrUX data) matter more than synthetic scores.
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