Performance
· 28 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.Performance-focused optimization plan with CWV assessment, top offenders, and time estimates
First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.
953 ms
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
1.62 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
668 ms
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.002
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
1.03 s
Time to Interactive Time to Interactive — how long until the page is fully interactive and responds to user input. Under 3.8s is good.
3.36 s
Page Load Progression
DThird-Party ImpactAction81% third-party, 0 ms blockingFIX
DHTTP CachingActionno-store (uncacheable)FIX
no-store, no-cache, must-revalidate
| Directive | Value | Meaning |
|---|---|---|
| no-store | — | Never cache this response |
| no-cache | — | Cache but always revalidate first |
| must-revalidate | — | Must recheck with server after expiry |
CJS Execution CostAction1453ms total JS executionREVIEW
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://www.jumia.co.ke/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=a44ca5cc49ecf6b5 | 1117ms | 1061ms | 17ms | 1st |
| Unattributable | 185ms | 11ms | 0ms | 1st |
| https://www.jumia.co.ke/redmi-15c-byxiaomi-smartphone-6.9-8gb-ram-256gb-dual-sim-6000mah-1-year-warranty-black-325383506.html | 93ms | 14ms | 2ms | 1st |
| https://challenges.cloudflare.com/turnstile/v0/b/d76008a69eab/api.js?onload=zaERg6&render=explicit | 58ms | 46ms | 7ms | 3rd |
BDocument CompressionDocument response uses gzip; brotli would be ~20% smallerREVIEW
BServer-Timing ObservabilityNo Server-Timing header foundREVIEW
APage Weight Budget971 KB transferred, 20 requestsPASS
A+Text CompressionAll text resources are compressedPASS
AImage Optimization2 images, 0 KB saveablePASS
A+Font LoadingNo web fonts (system fonts)PASS
A+JS Bundles9 scripts, 0 KB unusedPASS
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://www.jumia.co.ke/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=a44ca5cc49ecf6b5 | 86 KB | — | ✓ | 1st |
| blob:https://www.jumia.co.ke/670bab80-70a8-4594-b318-6544100d78d4 | 0 KB | — | ✓ | 3rd |
| https://challenges.cloudflare.com/turnstile/v0/b/d76008a69eab/api.js?onload=zaERg6&render=explicit | 28 KB | — | ✓ | 3rd |
| blob:https://www.jumia.co.ke/f15d4341-a7af-4247-997d-26c0a959e0cd | -0 KB | — | ✓ | 3rd |
| blob:https://challenges.cloudflare.com/1a09e870-22e0-4741-8842-341ff717fcfc | 0 KB | — | ✓ | 3rd |
| blob:https://challenges.cloudflare.com/9756af54-cd36-4f13-bad2-0c9e07aec8e3 | -0 KB | — | ✓ | 3rd |
| blob:https://challenges.cloudflare.com/9756af54-cd36-4f13-bad2-0c9e07aec8e3 | -0 KB | — | ✓ | 3rd |
| blob:https://challenges.cloudflare.com/9756af54-cd36-4f13-bad2-0c9e07aec8e3 | -0 KB | — | ✓ | 3rd |
| blob:https://challenges.cloudflare.com/7d6b78d3-9b44-4d0e-b57e-8868f9d27c89 | -0 KB | — | ✓ | 3rd |
A+Resource CachingAll resources properly cachedPASS
A+Critical Rendering PathNo render-blocking resourcesPASS
A+Resource HintsNo optimization neededPASS
A+HTTP/3 (QUIC)HTTP/3 advertised via Alt-SvcPASS
A+LCP Image PreloadLCP preload audit not availablePASS
A+Main HTML Cache-ControlMain HTML uses no-store -- correct for sensitive/dynamic contentPASS
A+Server Response Intelligence2 server-response signal(s) detectedPASS
APage Weight Inventory20 resources · 971 KB · 0 KB savings availablePASS
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 20 resources | 970.8 KiB | ||||||
A+Render-Blocking ResourcesNo render-blocking resources detectedPASS
A+Third-Party ResourcesNo third-party resources detectedPASS
AJavaScript Blocking1 JS blocking issue(s) detectedPASS
A+CSS Performance DepthNo CSS performance depth issues detectedPASS
A+Green HostingWhether the site is served from green-energy infrastructurePASS
Green Hosting
This site is hosted on green energy infrastructure
Provider: Cloudflare
Asset CompressionNo text asset hosts to measureINFO
Network Waterfall20 requests over 2092msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
challenges.cloudflare.com challenges.cloudflare.com | Other | 58ms | 28 KB | — | KSh23/mo | Optional |
Real-User Performance (CrUX)Field metrics from the Chrome User Experience ReportINFO
Chrome User Experience (CrUX)
Real-user metrics from the Chrome UX Report (2026-09-04 — 2026-10-01)
LCP (p75)
3375 ms
53% good
INP (p75)
0 ms
0% good
CLS (p75)
0.040
82% good
FCP (p75)
2218 ms
TTFB (p75)
855 ms
Image Optimization1 images, 6 KB total, 0 KB wastedINFO
Image Optimization Audit
Total Images
1
Total Size
6 KB