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dc.js vs Phusion Passenger

Based on 74 and 2 real audits

View dc.js details | View Phusion Passenger details
Metricdc.jsPhusion PassengerWinner
Performance3765Phusion Passenger
Accessibility8886dc.js
Best Practices8798Phusion Passenger
SEO9292Tie
Security6770Phusion Passenger
TTFB395ms643msdc.js
Composite7478Phusion Passenger
Performance
dc.js
37
Phusion Passenger
65
Accessibility
dc.js
88
Phusion Passenger
86
Security
dc.js
67
Phusion Passenger
70
SEO
dc.js
92
Phusion Passenger
92
Composite
dc.js
74
Phusion Passenger
78

Phusion Passenger outperforms dc.js in 4 of 7 categories, with a stronger composite score (78 vs 74). dc.js leads in accessibility, TTFB.

When to choose dc.js

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

When to choose Phusion Passenger

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

How this comparison was built

Scores are medians across 74 audited dc.js sites and 2 audited Phusion Passenger 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, dc.js or Phusion Passenger?
Based on real BeaverCheck audits, Phusion Passenger sites score higher on Lighthouse performance (65 vs 37 on average).
Which has better security, dc.js or Phusion Passenger?
Phusion Passenger sites score higher on security analysis (70 vs 67 on average).
Which has better accessibility, dc.js or Phusion Passenger?
Accessibility scores measured by Lighthouse WCAG 2.1 checks favor dc.js (88 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, dc.js or Phusion Passenger?
dc.js sites score higher on Lighthouse SEO signals (92 vs 92 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), dc.js or Phusion Passenger?
dc.js sites show lower Time to First Byte (395 ms vs 643 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 dc.js or Phusion Passenger for my website?
Both platforms have trade-offs. Phusion Passenger scores higher on overall composite score while dc.js 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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