TTFB · Server response
Time to First Byte: how long until the first byte of the page arrives.
TTFB verdict
v1.2.8 vs v1.2.7 · / · mobileNowv1.2.7
Unchanged
Server response got 39ms faster (−7.0%). A change only counts when it is at least 5% and at least 50ms. Here that means 50ms, so this one doesn’t.
faster−50ms · too small to count · +50msslower
Now · v1.2.8
513ms
Good
v1.2.7552msChange−39msGood up to800ms
Visits measured
144
on mobile, enough for a verdict
v1.2.7 · mobile241 / 30
v1.2.8 · mobile144 / 30
v1.2.8 · desktop9 / 30
Where visits landed
share of visits in each rangev1.2.792%
v1.2.894%
Good ≤ 800msNeeds improvementPoor > 1,800ms
Same shape as v1.2.7. Nine in ten mobile visits get their first byte in 800ms or less.
Moved in the same release
The steps that add up to the first byte. A place to look, not a cause.
TTFB across releases
Typical visit · each point is a deploy, ringed by its TTFB verdictImprovedRegressedUnchanged
TTFB by page
v1.2.8 vs v1.2.7 · mobile · pages need 30 visits on both sidesPageVisitsv1.2.7v1.2.8ChangeVerdict
144552ms513ms−7.0%Unchanged
103600ms558ms−7.0%Unchanged
124630ms586ms−7.0%Unchanged
41540ms502ms−7.0%Unchanged