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Facebook vs Underscore.js

Based on 1465 and 218 real audits

View Facebook details | View Underscore.js details
MetricFacebookUnderscore.jsWinner
Performance3940Underscore.js
Accessibility8988Facebook
Best Practices8585Tie
SEO9091Underscore.js
Security6767Tie
TTFB281ms477msFacebook
Composite7374Underscore.js
Performance
Facebook
39
Underscore.js
40
Accessibility
Facebook
89
Underscore.js
88
Security
Facebook
67
Underscore.js
67
SEO
Facebook
90
Underscore.js
91
Composite
Facebook
73
Underscore.js
74

Underscore.js outperforms Facebook in 3 of 7 categories, with a stronger composite score (74 vs 73). Facebook leads in accessibility, TTFB.

When to choose Facebook

Choose Facebook when your primary concern is server response time and accessibility. Its audit data shows consistent strength in these areas across the sampled sites.

When to choose Underscore.js

Choose Underscore.js when your primary concern is performance and SEO. Its audit data shows consistent strength in these areas across the sampled sites.

How this comparison was built

Scores are medians across 1465 audited Facebook sites and 218 audited Underscore.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 →

FAQ

Which is faster, Facebook or Underscore.js?
Based on real BeaverCheck audits, Underscore.js sites score higher on Lighthouse performance (40 vs 39 on average).
Which has better security, Facebook or Underscore.js?
Facebook sites score higher on security analysis (67 vs 67 on average).
Which has better accessibility, Facebook or Underscore.js?
Accessibility scores measured by Lighthouse WCAG 2.1 checks favor Facebook (89 vs 88). Both technologies can be made fully accessible with care — the difference reflects common patterns in the sampled sites, not inherent platform limits.
Which is better for SEO, Facebook or Underscore.js?
Underscore.js sites score higher on Lighthouse SEO signals (91 vs 90 on average), which cover meta tags, crawlability, mobile friendliness, and structured data. Content strategy and backlinks still matter more than platform choice for ranking.
Which has faster server response (TTFB), Facebook or Underscore.js?
Facebook sites show lower Time to First Byte (281 ms vs 477 ms on average). TTFB depends heavily on hosting and CDN setup rather than the technology itself, but the sampled sites suggest a meaningful difference in common deployment patterns.
Should I choose Facebook or Underscore.js for my website?
Both platforms have trade-offs. Underscore.js scores higher on overall composite score while Facebook may excel in metrics you care about most. Run a free BeaverCheck audit on a real site using each to compare the metrics relevant to your use case.
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