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cdnjs vs Sendlane

Based on 373 and 1 real audits

View cdnjs details | View Sendlane details
MetriccdnjsSendlaneWinner
Performance4026cdnjs
Accessibility8890Sendlane
Best Practices8677cdnjs
SEO9092Sendlane
Security6573Sendlane
TTFB367ms108msSendlane
Composite7372cdnjs
Performance
cdnjs
40
Sendlane
26
Accessibility
cdnjs
88
Sendlane
90
Security
cdnjs
65
Sendlane
73
SEO
cdnjs
90
Sendlane
92
Composite
cdnjs
73
Sendlane
72

Sendlane outperforms cdnjs in 4 of 7 categories, with a stronger composite score (72 vs 73). cdnjs leads in performance, best practices, composite score.

When to choose cdnjs

Choose cdnjs 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 Sendlane

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

How this comparison was built

Scores are medians across 373 audited cdnjs sites and 1 audited Sendlane 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, cdnjs or Sendlane?
Based on real BeaverCheck audits, cdnjs sites score higher on Lighthouse performance (40 vs 26 on average).
Which has better security, cdnjs or Sendlane?
Sendlane sites score higher on security analysis (73 vs 65 on average).
Which has better accessibility, cdnjs or Sendlane?
Accessibility scores measured by Lighthouse WCAG 2.1 checks favor Sendlane (90 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, cdnjs or Sendlane?
Sendlane sites score higher on Lighthouse SEO signals (92 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), cdnjs or Sendlane?
Sendlane sites show lower Time to First Byte (108 ms vs 367 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 cdnjs or Sendlane for my website?
Both platforms have trade-offs. cdnjs scores higher on overall composite score while cdnjs 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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