Question 1

What signals does the page experience checker evaluate?

Accepted Answer

Eight signals in total: four Core Web Vitals (LCP — Largest Contentful Paint, FID — First Input Delay, CLS — Cumulative Layout Shift, INP — Interaction to Next Paint) plus four binary signals (HTTPS enabled, mobile-friendly, no intrusive interstitials, safe browsing status). Each is scored independently and rolled up into an overall page experience score.

Question 2

How is the page experience score calculated?

Accepted Answer

Each Core Web Vital is scored 0-100 using Google's thresholds (good/needs improvement/poor → 100/50/0). The four CWV scores are averaged into a CWV score. The final page experience score weights: CWV 40%, HTTPS 15%, mobile-friendly 20%, no interstitials 15%, safe browsing 10%. Every input field is editable so you can see how fixing each signal moves the overall score.

Question 3

What thresholds are used for each Core Web Vital?

Accepted Answer

LCP: ≤2500ms good, 2500-4000 needs improvement, >4000 poor. FID: ≤100ms good, 100-300 needs improvement, >300 poor. CLS: ≤0.1 good, 0.1-0.25 needs improvement, >0.25 poor. INP: ≤200ms good, 200-500 needs improvement, >500 poor. These match Google's published Core Web Vitals thresholds.

Question 4

What extra features does this tool have compared to others?

Accepted Answer

(1) Input validation. (2) Per-signal scoring (4 CWV + 4 binary). (3) Color-coded status (good/needs improvement/poor). (4) Overall CWV score (0-100). (5) Weighted page-experience score. (6) Recommendation generator (8+ rules). (7) Signal status table. (8) Render as text report. (9) Render as CSV. (10) Copy + Download .txt + Download CSV. (11) History (localStorage, last 20). (12) Shareable URL (encodes inputs in hash). (13) Comparison mode (current vs target). (14) Summary stats. (15) Score visualization (progress bar).

Question 5

Is my data sent anywhere?

Accepted Answer

No. All scoring runs locally in your browser. History is stored in localStorage on this device only. No URL or measurements ever leave the page.

Page Experience Signal Checker

Scores

Signal status table

Comparison (current vs target)

Export

How to use

Scores

Signal status table

Comparison (current vs target)

Export