Zest

Median of 5 presets · measured 270 times since 2026-11-06 · Lighthouse via PageSpeed Insights · 0–100, 90+ is good.

Mobile

Speed 78 · 22 points to gain

• −15.3 Largest Contentful Paint medium effort
• −4 Speed Index medium effort
• −2.4 Total Blocking Time medium effort

SEO 92 · 8 points to gain

• −7.7 Image elements do not have `[alt]` attributes low effort

Accessibility 85 · 15 points to gain

• −4 Elements with an ARIA `[role]` that require children to contain a specific `[role]` are missing some or all of those required children. medium effort
• −4 Image elements do not have `[alt]` attributes low effort
• −2.8 ARIA input fields do not have accessible names medium effort
• −2.8 Background and foreground colors do not have a sufficient contrast ratio. medium effort
• −1.2 Heading elements are not in a sequentially-descending order medium effort

Best practices 96 · 4 points to gain

• −3.8 Browser errors were logged to the console medium effort

Desktop

Speed 90 · 10 points to gain

• −5.7 Total Blocking Time medium effort
• −4.2 Speed Index medium effort

SEO 92 · 8 points to gain

• −7.7 Image elements do not have `[alt]` attributes low effort

Accessibility 85 · 15 points to gain

• −4 Elements with an ARIA `[role]` that require children to contain a specific `[role]` are missing some or all of those required children. medium effort
• −4 Image elements do not have `[alt]` attributes low effort
• −2.8 ARIA input fields do not have accessible names medium effort
• −2.8 Background and foreground colors do not have a sufficient contrast ratio. medium effort
• −1.2 Heading elements are not in a sequentially-descending order medium effort

Best practices 96 · 4 points to gain

• −3.8 Browser errors were logged to the console medium effort