How is the Performance score calculated?

We provide a comprehensive evaluation of over 15,000 dealership websites across the, analyzing their performance based on speed, responsiveness, and stability.

This document details our methodology for calculating the performance scores, the metrics involved, and their respective importance.

Metrics Definition and Weighting

Our scoring system utilizes six key metrics derived from web performance best practices. Each metric is assigned a weight based on its impact on user experience.

First Contentful Paint (FCP)

Measures the time from page load to the first content rendered. Lower FCP improves perceived load speed.

RANGE:

1000ms - 6000ms

WEIGHT:

1000ms - 6000ms

First Input Delay (FID)

Captures the time from user interaction to response. Essential for interactive sites.

RANGE:

50ms - 600ms

WEIGHT:

50ms - 600ms

Largest Contentful Paint (LCP)

Indicates the load time for the main content. Key for retaining user attention.

RANGE:

1000ms - 8000ms

WEIGHT:

1000ms - 8000ms

Cumulative Layout Shift (CLS)

Measures visual stability; lower CLS means fewer unexpected layout shifts.

RANGE:

0 - 0.8

WEIGHT:

0 - 0.8

Time to First Byte (TTFB)

Assesses the server response time. Faster TTFB means a quicker start to loading.

RANGE:

250ms - 3000ms

WEIGHT:

250ms - 3000ms

Interaction to Next Paint (INP)

Evaluates the responsiveness to user interactions. Crucial for a smooth user experience.

RANGE:

100ms - 1000ms

WEIGHT:

100ms - 1000ms