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HTTP/3 vs Modern Image Formats

Based on 1996 and 9 real audits

View HTTP/3 details | View Modern Image Formats details
MetricHTTP/3Modern Image FormatsWinner
Performance5655HTTP/3
Accessibility8990Modern Image Formats
Best Practices8985HTTP/3
SEO9191Tie
Security7368HTTP/3
TTFB365ms416msHTTP/3
Composite7876HTTP/3
Performance
HTTP/3
56
Modern Image Formats
55
Accessibility
HTTP/3
89
Modern Image Formats
90
Security
HTTP/3
73
Modern Image Formats
68
SEO
HTTP/3
91
Modern Image Formats
91
Composite
HTTP/3
78
Modern Image Formats
76

HTTP/3 outperforms Modern Image Formats in 5 of 7 categories, with a stronger composite score (78 vs 76). Modern Image Formats leads in accessibility.

When to choose HTTP/3

Choose HTTP/3 when your primary concern is server response time and security. Its audit data shows consistent strength in these areas across the sampled sites.

When to choose Modern Image Formats

Choose Modern Image Formats when your primary concern is accessibility. Its audit data shows consistent strength in these areas across the sampled sites.

How this comparison was built

Scores are medians across 1996 audited HTTP/3 sites and 9 audited Modern Image Formats 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, HTTP/3 or Modern Image Formats?
Based on real BeaverCheck audits, HTTP/3 sites score higher on Lighthouse performance (56 vs 55 on average).
Which has better security, HTTP/3 or Modern Image Formats?
HTTP/3 sites score higher on security analysis (73 vs 68 on average).
Which has better accessibility, HTTP/3 or Modern Image Formats?
Accessibility scores measured by Lighthouse WCAG 2.1 checks favor Modern Image Formats (90 vs 89). 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, HTTP/3 or Modern Image Formats?
HTTP/3 sites score higher on Lighthouse SEO signals (91 vs 91 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), HTTP/3 or Modern Image Formats?
HTTP/3 sites show lower Time to First Byte (365 ms vs 416 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 HTTP/3 or Modern Image Formats for my website?
Both platforms have trade-offs. HTTP/3 scores higher on overall composite score while HTTP/3 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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