Based on 124 and 1 real audits
| Metric | F5 BigIP | Screenfull.js | Winner |
|---|---|---|---|
| Performance | 35 | 36 | Screenfull.js |
| Accessibility | 91 | 86 | F5 BigIP |
| Best Practices | 85 | 100 | Screenfull.js |
| SEO | 91 | 85 | F5 BigIP |
| Security | 65 | 65 | Tie |
| TTFB | 527ms | 685ms | F5 BigIP |
| Composite | 71 | 73 | Screenfull.js |
F5 BigIP and Screenfull.js are closely matched, each leading in different categories. F5 BigIP has a composite score of 71 while Screenfull.js scores 73.
Choose F5 BigIP when your primary concern is server response time and SEO. Its audit data shows consistent strength in these areas across the sampled sites.
Choose Screenfull.js when your primary concern is best practices and performance. Its audit data shows consistent strength in these areas across the sampled sites.
Scores are medians across 124 audited F5 BigIP sites and 1 audited Screenfull.js 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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