c15t
@c15t/nextjs@2.2.1 (offline)
Self-hosted npm
Score and composition
81Good · ±1.5
fast desktop · cold cache · p75 of 20 loads
CategoryWeightageScore
Banner Speed30 %77
Page Impact25 %98
Network Cost25 %82
Visitor Experience20 %64
Time to banner
1.1s
±140 ms across loads
First-paint delay
117ms
Beyond the control's 425 ms · TBT +4 ms
Transferred
59.7KB
Beyond the control's 138.5 KB · +2 requests
Viewport blocked
27.8%
Of the first viewport · clickable 67 ms later
20 loads · time to banner
915 msmedian 1.0 s1.6 s
Where it sits in the field · 12 installations
60
80
0this provider · 81100
How the banner lands · p75 load
Document
542 msto first paint
Consent request
none · in the bundle
—no extra requestScript executes
788 msconsent layer
Banner visible
1.1 sfrom navigation start
LCP 542 ms · 117 ms later than the controlbanner 1.1 s · covers 27.8%
Across conditions · p75 per condition
| Condition | Score | Rank | Time to banner | Transferred | Viewport blocked | LCP |
|---|---|---|---|---|---|---|
| throttled-mobile · cold | 64Fair | 4 / 12 | 3.4s | 59.7KB | 27.8% | 954ms |
| fast-desktop · cold | 81Good | 3 / 12 | 1.1s | 59.7KB | 27.8% | 542ms |
Reported, not scored Does not affect the number
DeliverySelf-hosted npm
Package@c15t/nextjs@2.2.1 (offline)
Framework of the test appNext.js 16.3.4
LanguageTypeScript / JavaScript
Bundle typeApp-bundled package
SDK licenceNot recorded
Open source SDKNot recorded
Deployed23 Sep 2026
Loads in this run20 per condition · 2 conditions