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AOS vs HTTP/3

Based on 117 and 2625 real audits

View AOS details | View HTTP/3 details
MetricAOSHTTP/3Winner
Performance4857HTTP/3
Accessibility9090Tie
Best Practices9090Tie
SEO9292Tie
Security7375HTTP/3
TTFB819ms436msHTTP/3
Composite7779HTTP/3
Performance
AOS
48
HTTP/3
57
Accessibility
AOS
90
HTTP/3
90
Security
AOS
73
HTTP/3
75
SEO
AOS
92
HTTP/3
92
Composite
AOS
77
HTTP/3
79

HTTP/3 outperforms AOS in 4 of 7 categories, with a stronger composite score (79 vs 77). AOS leads in no categories.

When to choose AOS

AOS doesn't clearly lead HTTP/3 in any category on the sampled sites — pick it based on developer experience, ecosystem, or existing team skills rather than the audit scores.

When to choose HTTP/3

Choose HTTP/3 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 117 audited AOS sites and 2625 audited HTTP/3 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, AOS or HTTP/3?
Based on real BeaverCheck audits, HTTP/3 sites score higher on Lighthouse performance (57 vs 48 on average).
Which has better security, AOS or HTTP/3?
HTTP/3 sites score higher on security analysis (75 vs 73 on average).
Which has better accessibility, AOS or HTTP/3?
Accessibility scores measured by Lighthouse WCAG 2.1 checks favor AOS (90 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 HTTP/3?
AOS 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), AOS or HTTP/3?
HTTP/3 sites show lower Time to First Byte (436 ms vs 819 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 HTTP/3 for my website?
Both platforms have trade-offs. HTTP/3 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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