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WebPagetest Forums - TTFB score

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Full Version: TTFB score
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I cannot understand how retrieve "First Byte Time (back-end processing)" from response I get in API request. I tried to calculate the value by using the next formula:

Target First Byte Time / First Byte Time * 100

but it also got me wrong value. Please help me understand how I can get value exactly the same what you have in that filed?!

Image attached to see exactly what field I want to get
That's a score, not a measurement - you sure you want the score? The measurement is going to be much more reliable.
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