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AOS vs mobile-detect.js

Based on 67 and 2 real audits

MetricAOSmobile-detect.jsWinner
Performance4154mobile-detect.js
Accessibility9094mobile-detect.js
Best Practices8677AOS
SEO9083AOS
Security6773mobile-detect.js
TTFB469ms54msmobile-detect.js
Composite7475mobile-detect.js
Performance
AOS
41
mobile-detect.js
54
Accessibility
AOS
90
mobile-detect.js
94
Security
AOS
67
mobile-detect.js
73
SEO
AOS
90
mobile-detect.js
83
Composite
AOS
74
mobile-detect.js
75

mobile-detect.js outperforms AOS in 5 of 7 categories, with a stronger composite score (75 vs 74). AOS leads in best practices, SEO.

When to choose AOS

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

When to choose mobile-detect.js

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

How this comparison was built

Scores are medians across 67 audited AOS sites and 2 audited mobile-detect.js 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, AOS or mobile-detect.js?
Based on real BeaverCheck audits, mobile-detect.js sites score higher on Lighthouse performance (54 vs 41 on average).
Which has better security, AOS or mobile-detect.js?
mobile-detect.js sites score higher on security analysis (73 vs 67 on average).
Which has better accessibility, AOS or mobile-detect.js?
Accessibility scores measured by Lighthouse WCAG 2.1 checks favor mobile-detect.js (94 vs 90). 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, AOS or mobile-detect.js?
AOS sites score higher on Lighthouse SEO signals (90 vs 83 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), AOS or mobile-detect.js?
mobile-detect.js sites show lower Time to First Byte (54 ms vs 469 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 AOS or mobile-detect.js for my website?
Both platforms have trade-offs. mobile-detect.js scores higher on overall composite score while AOS 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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