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jQuery-pjax vs Underscore.js

Based on 3 and 192 real audits

View jQuery-pjax details | View Underscore.js details
MetricjQuery-pjaxUnderscore.jsWinner
Performance3339Underscore.js
Accessibility8687Underscore.js
Best Practices8484Tie
SEO8690Underscore.js
Security6766jQuery-pjax
TTFB119ms431msjQuery-pjax
Composite7273Underscore.js
Performance
jQuery-pjax
33
Underscore.js
39
Accessibility
jQuery-pjax
86
Underscore.js
87
Security
jQuery-pjax
67
Underscore.js
66
SEO
jQuery-pjax
86
Underscore.js
90
Composite
jQuery-pjax
72
Underscore.js
73

Underscore.js outperforms jQuery-pjax in 4 of 7 categories, with a stronger composite score (73 vs 72). jQuery-pjax leads in security, TTFB.

When to choose jQuery-pjax

Choose jQuery-pjax when your primary concern is server response time and security. 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 3 audited jQuery-pjax sites and 192 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 →

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.

FAQ

Which is faster, jQuery-pjax or Underscore.js?
Based on real BeaverCheck audits, Underscore.js sites score higher on Lighthouse performance (39 vs 33 on average).
Which has better security, jQuery-pjax or Underscore.js?
jQuery-pjax sites score higher on security analysis (67 vs 66 on average).
Which has better accessibility, jQuery-pjax 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-pjax or Underscore.js?
Underscore.js sites score higher on Lighthouse SEO signals (90 vs 86 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-pjax or Underscore.js?
jQuery-pjax sites show lower Time to First Byte (119 ms vs 431 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-pjax or Underscore.js for my website?
Both platforms have trade-offs. Underscore.js scores higher on overall composite score while jQuery-pjax 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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