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jQuery vs Underscore.js

Based on 1841 and 173 real audits

View jQuery details | View Underscore.js details
MetricjQueryUnderscore.jsWinner
Performance4538jQuery
Accessibility8687Underscore.js
Best Practices8783jQuery
SEO9090Tie
Security6464Tie
TTFB433ms420msUnderscore.js
Composite7372jQuery
Performance
jQuery
45
Underscore.js
38
Accessibility
jQuery
86
Underscore.js
87
Security
jQuery
64
Underscore.js
64
SEO
jQuery
90
Underscore.js
90
Composite
jQuery
73
Underscore.js
72

jQuery outperforms Underscore.js in 3 of 7 categories, with a stronger composite score (73 vs 72). Underscore.js leads in accessibility, TTFB.

When to choose jQuery

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

How this comparison was built

Scores are medians across 1841 audited jQuery sites and 173 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, jQuery or Underscore.js?
Based on real BeaverCheck audits, jQuery sites score higher on Lighthouse performance (45 vs 38 on average).
Which has better security, jQuery or Underscore.js?
jQuery sites score higher on security analysis (64 vs 64 on average).
Which has better accessibility, jQuery or Underscore.js?
Accessibility scores measured by Lighthouse WCAG 2.1 checks favor Underscore.js (87 vs 86). 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, jQuery or Underscore.js?
jQuery sites score higher on Lighthouse SEO signals (90 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), jQuery or Underscore.js?
Underscore.js sites show lower Time to First Byte (420 ms vs 433 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 jQuery or Underscore.js for my website?
Both platforms have trade-offs. jQuery scores higher on overall composite score while jQuery 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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