Best Car Dealership Websites in Madison, SD
2 dealership websites in Madison, ranked by how fast and stable they are for real shoppers. Madison averages 78, 6 points below the South Dakota average. Prostrollo Auto Plaza Co leads at 86. Updated Oct 17, 2026.
- Sites ranked
- 2
- Average score
- 78
- −6 vs South Dakota (84)
- Scoring good
- 50%
- 1 site above 80
- Top score
- 86
- Prostrollo Auto Plaza Co
Dealership websites in Madison
| RANK | DEALERSHIP | SCORE |
|---|---|---|
| 1 | 86 | |
| 2 | 70 |
Nearby cities
The closest cities with ranked dealership websites.
More cities in South Dakota
How the rankings work
Each website's score (0–100) comes from Google's Chrome UX Report — what real Chrome users experienced over a roughly 28-day window. It weights five field metrics at the 75th percentile: Largest Contentful Paint, Cumulative Layout Shift, Interaction to Next Paint, First Contentful Paint and Time to First Byte. Above 80 is good, 61–80 needs improvement, 60 or less is poor.
It measures website performance, not a dealership's sales or service. Active dealership websites with enough Chrome traffic to be measured are ranked; the rest aren't scored rather than scored low.