Daily brief ecommerce Sample • Anonymized

Fix Mobile Checkout Page Speed

in progress Priority: P0 • ecommerce Persona

📋 Task Overview

Source: Daily Causal Report - Cart Abandonment Alert

Statement

Mobile checkout page is loading in 3.8 seconds average (vs 1.9s desktop), causing a significant spike in cart abandonment during peak traffic hours. This has been identified as the primary cause of the 18-point cart abandonment increase.

Business Impact

• Cart abandonment: 72% (up from 54% baseline)
• Lost revenue estimate: $1,800/week
• Affected sessions: 6,547 mobile users (73% of traffic)

🔍 Root Cause Analysis

Root cause discovery

Confidence: 78%

↑

FB Retargeting

+45% Traffic

→

Mobile Users

73% of traffic

↓

Checkout Page

3.8s load time

↓

Cart Abandonment

+18 points

78% confident

Technical Investigation - Chrome DevTools Analysis

Resource	Size	Issue	Status
product-images.js	2.4 MB	-	↓ 🔴 Uncompressed
checkout-bundle.js	890 KB	-	→ 🟡 Render-blocking
hero-image.jpg	1.2 MB	-	↓ 🔴 Unoptimized
fonts.css	180 KB	-	↑ 🟢 OK

Lighthouse Score

0-49 50-89 90-100

Scores are calculated based on performance, accessibility, best practices, and SEO.

📊 Expected Results

Metric	Target	Current	Delta
Mobile Load Time	1.8s	3.8s	↑ -53%
Lighthouse Score	75+	34	↑ +120%
Cart Abandonment	61%	72%	↑ -15%

Impact Analysis

Weekly Lost Revenue (Current): $1,800 Expected Recovery: $1,200 (67%) Monthly Impact: +$4,800