Skip to content

MySQL vs PostgreSQL

Based on 477 and 2 real audits

View MySQL details | View PostgreSQL details
MetricMySQLPostgreSQLWinner
Performance4549PostgreSQL
Accessibility8886MySQL
Best Practices8688PostgreSQL
SEO91100PostgreSQL
Security6462MySQL
TTFB318ms650msMySQL
Composite7476PostgreSQL
Performance
MySQL
45
PostgreSQL
49
Accessibility
MySQL
88
PostgreSQL
86
Security
MySQL
64
PostgreSQL
62
SEO
MySQL
91
PostgreSQL
100
Composite
MySQL
74
PostgreSQL
76

PostgreSQL outperforms MySQL in 4 of 7 categories, with a stronger composite score (76 vs 74). MySQL leads in accessibility, security, TTFB.

When to choose MySQL

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

When to choose PostgreSQL

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

How this comparison was built

Scores are medians across 477 audited MySQL sites and 2 audited PostgreSQL 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, MySQL or PostgreSQL?
Based on real BeaverCheck audits, PostgreSQL sites score higher on Lighthouse performance (49 vs 45 on average).
Which has better security, MySQL or PostgreSQL?
MySQL sites score higher on security analysis (64 vs 62 on average).
Which has better accessibility, MySQL or PostgreSQL?
Accessibility scores measured by Lighthouse WCAG 2.1 checks favor MySQL (88 vs 86). 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, MySQL or PostgreSQL?
PostgreSQL sites score higher on Lighthouse SEO signals (100 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), MySQL or PostgreSQL?
MySQL sites show lower Time to First Byte (318 ms vs 650 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 MySQL or PostgreSQL for my website?
Both platforms have trade-offs. PostgreSQL scores higher on overall composite score while MySQL 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