Best Car Dealership Websites in Spearfish, SD
4 dealership websites in Spearfish, ranked by how fast and stable they are for real shoppers. Spearfish averages 84, level with the South Dakota average. Spearfish GMC leads at 95. Updated Oct 17, 2026.
- Sites ranked
- 4
- Average score
- 84
- ±0 vs South Dakota (84)
- Scoring good
- 50%
- 2 sites above 80
- Top score
- 95
- Spearfish GMC
Dealership websites in Spearfish
| RANK | DEALERSHIP | SCORE |
|---|---|---|
| 1 | 95 | |
| 2 | 82 | |
| 3 | 80 | |
| 4 | 79 |
The Spearfish market
Website providers in Spearfish
Bars show share of ranked sites; the number is each provider's average score.
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.