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Wix fix guide

Slow Time to First Byte (TTFB) on Wix

Time to First Byte exceeds 800ms, indicating slow server response. TTFB affects all other performance metrics as a bottleneck.

Issue ID: CWV-TTFB-001Severity: moderateEffort: M

Why this matters

Time to First Byte exceeds 800ms, indicating slow server response. TTFB affects all other performance metrics as a bottleneck. This affects load speed, Core Web Vitals, and how many visitors stay long enough to convert.

Wix fix path

How to fix this on Wix

Use page settings and editor sections first.

  1. 1Find the relevant page or site setting.
  2. 2Apply the change in Wix Editor.
  3. 3Publish and validate the result.

After you fix it

  • Measure TTFB using WebPageTest or Chrome DevTools and confirm it is under 800ms

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