Faster81
#9,595 of 19,164
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Real-user data through
Recent
CrUX rolling 28-day window
Page and vendor scan
Stale
Latest usable Lighthouse measurement · over 14 days old
Sitemap checked
Stale
Latest recorded sitemap check · over 12 days old
Head to head
Faster
Provider average79
#14 of 24 providers
Verdict
National GMC is faster
Scores 81 vs 79 and wins 3 of 5 Core Web Vitals. Taps and clicks get a response 20% faster.
Metric by metric
Real-user figures are the 75th percentile of Chrome visits.
Metric
National GMC
Dealer.comReal-user experience
Performance score
Weighted Core Web Vitals · higher is better
81
+2 pts
79
Largest Contentful Paint
LCP · lower is better
2,098 ms
5% faster
2,217 ms
Interaction to Next Paint
INP · lower is better
287 ms
20% faster
361 ms
Cumulative Layout Shift
CLS · lower is better
0.15
0.02 less shift
0.17
First Contentful Paint
FCP · lower is better
1,583 ms
1,586 ms
Time to First Byte
TTFB · lower is better
1,101 ms
1,053 ms
4% faster
Lab test · home page
Page weight
Home page download · lower is better
16.1 MB
9.3 MB
42% lighter
Requests
Files the home page loads · lower is better
444
306
138 fewer
Third-party requests
Outside scripts and pixels · lower is better
400
227
173 fewer
JavaScript
Script download · lower is better
6.93 MB
4.23 MB
39% lighter
SEO
Lighthouse · higher is better
92
94
+2 pts
Accessibility
Lighthouse · higher is better
90
91
+1 pts
Best practices
Lighthouse · higher is better
50
56
+6 pts
More matchups
Nearby GMC dealers, and how National GMC stacks up against its provider's average.