Best Car Dealership Websites in Thornton, CO
3 dealership websites in Thornton, ranked by how fast and stable they are for real shoppers. Thornton averages 80, 2 points above the Colorado average. Sun Harley-Davidson leads at 97. Updated Oct 24, 2026.
- Sites ranked
- 3
- Average score
- 80
- +2 vs Colorado (78)
- Scoring good
- 33%
- 1 site above 80
- Top score
- 97
- Sun Harley-Davidson
Dealership websites in Thornton
| RANK | DEALERSHIP | SCORE |
|---|---|---|
| 1 | 97 | |
| 2 | 76 | |
| 3 | 68 |
The Thornton market
Website providers in Thornton
Bars show share of ranked sites; the number is each provider's average score. 1 site with no detected provider.
Score spread
- Good81–100133%
- Needs improvement61–80267%
- Poor0–6000%
Median score 76
Top brands
Nearby cities
The closest cities with ranked dealership websites.
More cities in Colorado
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.