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PostgreSQL vs Supabase

Based on 6 and 3 real audits

View PostgreSQL details | View Supabase details
MetricPostgreSQLSupabaseWinner
Performance5460Supabase
Accessibility8989Tie
Best Practices9392PostgreSQL
SEO90100Supabase
Security7369PostgreSQL
TTFB645ms492msSupabase
Composite8080Tie
Performance
PostgreSQL
54
Supabase
60
Accessibility
PostgreSQL
89
Supabase
89
Security
PostgreSQL
73
Supabase
69
SEO
PostgreSQL
90
Supabase
100
Composite
PostgreSQL
80
Supabase
80

Supabase outperforms PostgreSQL in 3 of 7 categories, with a stronger composite score (80 vs 80). PostgreSQL leads in best practices, security.

When to choose PostgreSQL

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

When to choose Supabase

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

How this comparison was built

Scores are medians across 6 audited PostgreSQL sites and 3 audited Supabase 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, PostgreSQL or Supabase?
Based on real BeaverCheck audits, Supabase sites score higher on Lighthouse performance (60 vs 54 on average).
Which has better security, PostgreSQL or Supabase?
PostgreSQL sites score higher on security analysis (73 vs 69 on average).
Which has better accessibility, PostgreSQL or Supabase?
Accessibility scores measured by Lighthouse WCAG 2.1 checks favor PostgreSQL (89 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, PostgreSQL or Supabase?
Supabase sites score higher on Lighthouse SEO signals (100 vs 90 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), PostgreSQL or Supabase?
Supabase sites show lower Time to First Byte (492 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 PostgreSQL or Supabase for my website?
Both platforms have trade-offs. Supabase scores higher on overall composite score while PostgreSQL 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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