Measures server responsiveness. How long the server takes to respond.
How search visibility changes as TTFB gets slower
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Average CTR for pages in each TTFB bucket
Where pages rank based on their TTFB performance
Average resource sizes for pages in each performance bucket
| TTFB Range | JS | CSS | Images | Total |
|---|---|---|---|---|
| < 0.4s | 1,076 KB | 89 KB | 469 KB | 2,105 KB |
| 0.4-0.8s | 1,202 KB | 119 KB | 2,471 KB | 4,315 KB |
| 0.8-1.8s | 1,284 KB | 128 KB | 1,037 KB | 2,837 KB |
| 1.8-3s | 1,187 KB | 151 KB | 709 KB | 2,439 KB |
| > 3s | 1,170 KB | 160 KB | 1,068 KB | 2,710 KB |
| Page Type | Avg. TTFB | Pages | Rating |
|---|---|---|---|
| Product Page | 0.27s | 789 | Good |
| Category Page | 0.37s | 165 | Good |
| Article / Blog Post | 0.38s | 362 | Good |
| FAQ Page | 0.39s | 75 | Good |
| Static Page | 1.11s | 73 | Needs Work |
Google considers TTFB under 0.8 seconds as 'Good'. TTFB is a server-side metric that affects all subsequent loading milestones. Our data shows a clear correlation with search rankings.
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