Website Speed Test

Test webpage load speed, assign speed grades (Grade A to F), measure server response timings, Core Web Vitals (LCP, INP, CLS), and inspect asset distributions.

Popular examples: https://google.comhttps://github.comhttps://wikipedia.org
Speed Grade Rating

Evaluates performance letter grades (Grade A to F) against fast web benchmarks.

Core Web Vitals

Audits LCP, INP, CLS, and TTFB metrics against Google Page Experience targets.

Asset Type Distribution

Inspects total counts for HTML, JavaScript, CSS stylesheets, images, and fonts.

Testing Website Speed & Server Timings…

Executing real browser navigation, Core Web Vitals checks, and asset distribution analysis.

Test Environment:Mobile393 × 852Chrome 1202026-08-25
Measurement Source:Browser MeasurementOrigin
Speed Grade

Grade A

Fast Performance
Performance Rating

Fast

Measured Browser
Total Load Duration

0 ms

TTFB: 0 ms
Total Requests

0

0 KB HTML
Performance Comparison (vs Previous Run):TTFB: 0msLoad Time: 0msLCP: 0s
Stored from previous run
Multi-Run Performance Variability (Median Selection)
Speed Diagnostic Findings
Measured Core Web Vitals & Page Experience Targets
Core Web Vital MetricMeasured ValueData SourceGoogle TargetStatus Rating
LCP (Largest Contentful Paint)Not availableBrowser Measurement≤ 2.5sGood
INP (Interaction to Next Paint)Not availableBrowser Measurement≤ 200msGood
CLS (Cumulative Layout Shift)Not availableBrowser Measurement≤ 0.10Good
FCP (First Contentful Paint)Not availableBrowser Measurement≤ 1.8sDiagnostic
TTFB (Time to First Byte)0 msNetwork Measurement≤ 800msGood
Largest Contentful Paint (LCP) Diagnostic Analysis
Cumulative Layout Shift (CLS) Session Window Shifts
Measured Network & Server Handshake Timings
Navigation Timings
DNS Resolution Time:0 ms
TCP Connection Time:0 ms
SSL / TLS Handshake:0 ms
Time to First Byte (TTFB):0 ms
DOM Interactive Event:0 ms
DOM Complete Event:0 ms
Total Server Response Duration:0 ms
HTTP Protocol & Redirect Chain
Asset Category Distribution
Asset CategoryDetected Count / ValueImpact on Speed
Resource Asset Waterfall & Payloads
Third-Party Domain Network Impact
Rendered Viewport Screenshot & Browser Console Errors
Rendered Screenshot
No screenshot available
Browser Console Errors & Warnings
Bulk Website Speed Test Summary

Total Tested

0

Fast Performance

0

Moderate Performance

0

Slow / Critical

0

Median LCP

0s

Median TTFB

0ms

Target URLSpeed GradeRatingTTFBLCPCLSStatus

What is a Website Speed Test?

A Website Speed Test evaluates how fast your domain loads across the internet. It measures total execution time, asset compositions, and structural file bloat to pinpoint exactly why a website may be loading slowly.

Frequently Asked Questions (FAQ)

Grade A is awarded to pages loading under 1.5 seconds. Grade B represents 1.5 to 3.0 seconds, while Grade C/F indicates response delays exceeding 3.0 seconds.

Network congestion, server load fluctuations, dynamic third-party ad tags, and DNS caching can cause minor variations between consecutive tests.