v1.2.1

9e3a11c · New checkout flow · deployed 36 days ago

Release verdict

vs v1.2.0 · / · Mobile

Unchanged

Every metric moved less than its threshold, so the earlier gains hold. Ship on.

18 metrics compared

18Unchanged

LCPUnchangedLoading

2.19s+0.0%

Now2.19sv1.2.02.19sGood ≤ 2.5s171 visitsGood

INPUnchangedResponsiveness

138ms+0.0%

Now138msv1.2.0138msGood ≤ 200ms165 visitsGood

CLSUnchangedVisual stability

0.019+0.0%

Now0.019v1.2.00.019Good ≤ 0.1171 visitsGood

FCPUnchangedFirst paint

1.43s+0.0%

Now1.43sv1.2.01.43sGood ≤ 1.8s171 visitsGood

TTFBUnchangedServer response

552ms+0.0%

Now552msv1.2.0552msGood ≤ 800ms171 visitsGood

JS errorsUnchangedVisits with an error

1.6%+0.0 pts

Now1.6%v1.2.01.6%No Google range171 visits

Changes in this release · 3 commits

9e3a11cNew checkout flow
a3c5e17Move shipping to its own step
e41c7b3Fix typo in shipping estimate

Metric	v1.2.1	v1.2.0	Change	Verdict	Visits
Visitor experience
LCP	2.19s	2.19s	+0.0%	Unchanged	171
INP	138ms	138ms	+0.0%	Unchanged	165
CLS	0.019	0.019	+0.0%	Unchanged	171
FCP	1.43s	1.43s	+0.0%	Unchanged	171
TTFB	552ms	552ms	+0.0%	Unchanged	171
JS errors	1.6%	1.6%	+0.0 pts	Unchanged	171
Page cost
LoAF	304ms	304ms	+0.0%	Unchanged	158
JS	363 kB	363 kB	+0.0%	Unchanged	171
CSS	54 kB	54 kB	+0.0%	Unchanged	171
Images	708 kB	708 kB	+0.0%	Unchanged	171
Fonts	80 kB	80 kB	+0.0%	Unchanged	171
Third-party cost
3rd-party size	304 kB	304 kB	+0.0%	Unchanged	164
3rd-party blocking	83ms	83ms	+0.0%	Unchanged	161
Load breakdown
DNS	16ms	16ms	+0.0%	Unchanged	171
Connect	79ms	79ms	+0.0%	Unchanged	171
Server	335ms	335ms	+0.0%	Unchanged	171
Download	37ms	37ms	+0.0%	Unchanged	171
DOM ready	536ms	536ms	+0.0%	Unchanged	168

Verdicts need 30+ visits on both releases and a change of at least max(floor, 5%). Health tags rate each value on its own with Google’s Core Web Vitals ranges and look faded under 30 visits. Load steps and third-party cost explain changes but never decide the verdict. An exploratory heuristic, not a significance test. Read the methodology