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Bootstrap vs D3

Based on 885 and 11 real audits

View Bootstrap details | View D3 details
MetricBootstrapD3Winner
Performance4643Bootstrap
Accessibility8782Bootstrap
Best Practices8787Tie
SEO9090Tie
Security6567D3
TTFB434ms298msD3
Composite7473Bootstrap
Performance
Bootstrap
46
D3
43
Accessibility
Bootstrap
87
D3
82
Security
Bootstrap
65
D3
67
SEO
Bootstrap
90
D3
90
Composite
Bootstrap
74
D3
73

Bootstrap outperforms D3 in 3 of 7 categories, with a stronger composite score (74 vs 73). D3 leads in security, TTFB.

When to choose Bootstrap

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

When to choose D3

Choose D3 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 885 audited Bootstrap sites and 11 audited D3 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, Bootstrap or D3?
Based on real BeaverCheck audits, Bootstrap sites score higher on Lighthouse performance (46 vs 43 on average).
Which has better security, Bootstrap or D3?
D3 sites score higher on security analysis (67 vs 65 on average).
Which has better accessibility, Bootstrap or D3?
Accessibility scores measured by Lighthouse WCAG 2.1 checks favor Bootstrap (87 vs 82). 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, Bootstrap or D3?
Bootstrap 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), Bootstrap or D3?
D3 sites show lower Time to First Byte (298 ms vs 434 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 Bootstrap or D3 for my website?
Both platforms have trade-offs. Bootstrap scores higher on overall composite score while Bootstrap 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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