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JSS vs Microsoft

Based on 14 and 2421 real audits

View JSS details | View Microsoft details
MetricJSSMicrosoftWinner
Performance4039JSS
Accessibility9089JSS
Best Practices8586Microsoft
SEO8989Tie
Security6866JSS
TTFB306ms329msJSS
Composite7472JSS
Performance
JSS
40
Microsoft
39
Accessibility
JSS
90
Microsoft
89
Security
JSS
68
Microsoft
66
SEO
JSS
89
Microsoft
89
Composite
JSS
74
Microsoft
72

JSS outperforms Microsoft in 5 of 7 categories, with a stronger composite score (74 vs 72). Microsoft leads in best practices.

When to choose JSS

Choose JSS 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 Microsoft

Choose Microsoft when your primary concern is best practices. Its audit data shows consistent strength in these areas across the sampled sites.

How this comparison was built

Scores are medians across 14 audited JSS sites and 2421 audited Microsoft 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, JSS or Microsoft?
Based on real BeaverCheck audits, JSS sites score higher on Lighthouse performance (40 vs 39 on average).
Which has better security, JSS or Microsoft?
JSS sites score higher on security analysis (68 vs 66 on average).
Which has better accessibility, JSS or Microsoft?
Accessibility scores measured by Lighthouse WCAG 2.1 checks favor JSS (90 vs 89). 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, JSS or Microsoft?
JSS sites score higher on Lighthouse SEO signals (89 vs 89 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), JSS or Microsoft?
JSS sites show lower Time to First Byte (306 ms vs 329 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 JSS or Microsoft for my website?
Both platforms have trade-offs. JSS scores higher on overall composite score while JSS 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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