| Metric | ButterCMS | SparkLoop | Winner |
|---|---|---|---|
| Performance | 30 | 30 | Tie |
| Accessibility | 86 | 86 | Tie |
| Best Practices | 88 | 88 | Tie |
| SEO | 92 | 92 | Tie |
| Security | 59 | 59 | Tie |
| TTFB | 367ms | 367ms | Tie |
| Composite | 71 | 71 | Tie |
ButterCMS and SparkLoop are closely matched, each leading in different categories. ButterCMS has a composite score of 71 while SparkLoop scores 71.
ButterCMS doesn't clearly lead SparkLoop in any category on the sampled sites — pick it based on developer experience, ecosystem, or existing team skills rather than the audit scores.
SparkLoop doesn't clearly lead ButterCMS 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 1 audited ButterCMS sites and 1 audited SparkLoop 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 →
Small sample: one or both technologies have fewer than 10 audited sites. Treat these numbers as directional — medians stabilize around 20–30 audits per side.
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