Publishing Platform Core Web Vitals Optimization
Client: Apex Growth Media (Digital Publishing Network)
Eliminating heavy render-blocking scripts and layout shifts, moving mobile Lighthouse score from 34 to 98 and restoring lost Google Discover traffic.
The Problem
Apex Media's ad stack and unoptimized font loading caused severe Cumulative Layout Shift (CLS 0.42) and poor LCP (5.2s), resulting in search visibility penalties.
Key Constraints
- •Ad revenues could not be sacrificed during script optimization
- •Over 40,000 published articles receiving millions of monthly visitors
Technical Approach & Execution
Containerized third-party ad tags into reserved DOM slots, self-hosted optimized variable fonts, and implemented modern AVIF image pipelines.
Zero-CLS Ad Slot Placeholders
Engineered responsive CSS aspect-ratio placeholders for all dynamic ad slots, dropping CLS to 0.01.
Font Preloading & Critical CSS Inlining
Eliminated font swap flash (FOIT/FOUT) and prioritized above-the-fold content rendering.
Cloud & Deployment
- Cloudflare Enterprise Edge Caching
- Next.js App Router with ISR
- Automated WebP/AVIF Image Pipeline
Tools & Languages
Key Engineering Lessons Learned:
- •Reserving layout dimensions for dynamic ad blocks completely cured layout shifts without reducing ad impressions
Explore other engineering engagements
See how our solutions scale across varying stacks and industries.
Real-Time Fleet Telemetry & Dispatch Platform
Rebuilding a fragmented legacy dispatch system into a reactive Next.js 15 application with real-time GPS tracking, automated driver assignments, and automated invoice reconciliation.
WooCommerce to Headless Next.js & Sanity Migration
Transforming a sluggish monolithic WordPress/WooCommerce site into a headless architecture, reducing load times from 4.8s to 0.7s and raising mobile conversions.
Rescuing an AI-Generated Financial Modeling Application
Auditing, refactoring, securing, and deploying an MVP built using Cursor and Bolt that was plagued with client-side secret leaks, infinite API loops, and broken auth.
Facing a similar engineering challenge?
Let's review your architecture, code repositories, or deployment roadblocks.