Skip to content

Astro vs Format

Based on 87 and 11 real audits

View Astro details | View Format details
MetricAstroFormatWinner
Performance6363Tie
Accessibility9397Format
Best Practices9379Astro
SEO96100Format
Security7373Tie
TTFB295ms645msAstro
Composite8080Tie
Performance
Astro
63
Format
63
Accessibility
Astro
93
Format
97
Security
Astro
73
Format
73
SEO
Astro
96
Format
100
Composite
Astro
80
Format
80

Astro and Format are closely matched, each leading in different categories. Astro has a composite score of 80 while Format scores 80.

When to choose Astro

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

When to choose Format

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

How this comparison was built

Scores are medians across 87 audited Astro sites and 11 audited Format 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, Astro or Format?
Based on real BeaverCheck audits, Astro sites score higher on Lighthouse performance (63 vs 63 on average).
Which has better security, Astro or Format?
Astro sites score higher on security analysis (73 vs 73 on average).
Which has better accessibility, Astro or Format?
Accessibility scores measured by Lighthouse WCAG 2.1 checks favor Format (97 vs 93). 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, Astro or Format?
Format sites score higher on Lighthouse SEO signals (100 vs 96 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), Astro or Format?
Astro sites show lower Time to First Byte (295 ms vs 645 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 Astro or Format for my website?
Both platforms have trade-offs. Astro scores higher on overall composite score while Astro 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.
Audit your own site

Send Feedback