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Time to First Byte (TTFB): Impact on Search Performance

Measures server responsiveness. How long the server takes to respond.

Global Average
0.19 s
Good Threshold
< 0.8 s
Correlation
Strong
Sample Size
40,513

Search Impressions by TTFB Range

How search visibility changes as TTFB gets slower

Click-Through Rate by TTFB Range

Average CTR for pages in each TTFB bucket

Average Position by TTFB Range

Where pages rank based on their TTFB performance

Resource Budget by TTFB Range

Average resource sizes for pages in each performance bucket

TTFB Range JS CSS Images Total
< 0.4s 1,202 KB 111 KB 612 KB 2,544 KB
0.4-0.8s 780 KB 121 KB 993 KB 2,120 KB
0.8-1.8s 1,199 KB 134 KB 766 KB 2,374 KB
1.8-3s 1,297 KB 168 KB 948 KB 2,656 KB
> 3s 1,204 KB 165 KB 1,227 KB 2,880 KB

TTFB by Page Type

Page Type Avg. TTFB Pages Rating
Product Page 0.05 s 4,183 Good
Category Page 0.11 s 740 Good
Home Page 0.12 s 115 Good
About Page 0.14 s 58 Good
FAQ Page 0.14 s 2,792 Good
Article / Blog Post 0.17 s 9,359 Good
Static Page 0.2 s 1,106 Good
Service Page 0.33 s 735 Good

Frequently Asked Questions

What TTFB is acceptable?

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.

Other Metrics

LCP CLS INP FCP FID SI

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