Based on 11 and 594 real audits
| Metric | Concert | DoubleClick Floodlight | Winner |
|---|---|---|---|
| Performance | 32 | 32 | Tie |
| Accessibility | 93 | 87 | Concert |
| Best Practices | 95 | 81 | Concert |
| SEO | 94 | 91 | Concert |
| Security | 66 | 64 | Concert |
| TTFB | 62ms | 340ms | Concert |
| Composite | 74 | 72 | Concert |
Concert outperforms DoubleClick Floodlight in 6 of 7 categories, with a stronger composite score (74 vs 72). DoubleClick Floodlight leads in no categories.
Choose Concert when your primary concern is server response time and best practices. Its audit data shows consistent strength in these areas across the sampled sites.
DoubleClick Floodlight doesn't clearly lead Concert in any category on the sampled sites — pick it based on developer experience, ecosystem, or existing team skills rather than the audit scores.
Scores are medians across 11 audited Concert sites and 594 audited DoubleClick Floodlight sites in the BeaverCheck database. Every audit runs the same 100+ checks — Lighthouse performance, security headers, accessibility, SEO, server response time — against a real URL. No vendor input, no sponsorship, no affiliate links. Read the full methodology →
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