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PDF.js vs USWDS

Based on 2 and 33 real audits

View PDF.js details | View USWDS details
MetricPDF.jsUSWDSWinner
Performance2443USWDS
Accessibility9496USWDS
Best Practices7989USWDS
SEO9292Tie
Security6566USWDS
TTFB230ms364msPDF.js
Composite7274USWDS
Performance
PDF.js
24
USWDS
43
Accessibility
PDF.js
94
USWDS
96
Security
PDF.js
65
USWDS
66
SEO
PDF.js
92
USWDS
92
Composite
PDF.js
72
USWDS
74

USWDS outperforms PDF.js in 5 of 7 categories, with a stronger composite score (74 vs 72). PDF.js leads in TTFB.

FAQ

Which is faster, PDF.js or USWDS?
Based on real BeaverCheck audits, USWDS sites score higher on Lighthouse performance (43 vs 24 on average).
Which has better security, PDF.js or USWDS?
USWDS sites score higher on security analysis (66 vs 65 on average).
Should I choose PDF.js or USWDS for my website?
Both platforms have trade-offs. USWDS scores higher on performance while PDF.js may excel in other areas. Run a free BeaverCheck audit to compare specific metrics relevant to your use case.
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