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Engineering, performance, SEO, AI, architecture and technical leadership — no fluff.

Engineering

Engineering Quality as a Contract, Not an Aspiration

Engineering Quality as a Contract, Not an Aspiration — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Apr 27, 2026 · 11 min read
Engineering

Reducing Deploy Lead Time Without Breaking Quality

Reducing Deploy Lead Time Without Breaking Quality — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Apr 26, 2026 · 11 min read
Engineering

Measuring Engineering Impact, For Real

Measuring Engineering Impact, For Real — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Apr 25, 2026 · 11 min read
Engineering

The Product Engineering Mindset

The Product Engineering Mindset — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Apr 24, 2026 · 11 min read
AI

AI for Internal Tooling: The Underrated Win

AI for Internal Tooling: The Underrated Win — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Apr 23, 2026 · 11 min read
AI

Product Engineering With LLMs

Product Engineering With LLMs — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Apr 22, 2026 · 11 min read
AI

Evaluating LLM Quality Like an Engineer

Evaluating LLM Quality Like an Engineer — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Apr 21, 2026 · 11 min read
AI

RAG Systems That Actually Work in Production

RAG Systems That Actually Work in Production — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Apr 20, 2026 · 11 min read
AI

Shipping AI Features Without the Hype

Shipping AI Features Without the Hype — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Apr 19, 2026 · 11 min read
Architecture

Static-First Architectures in 2025

Static-First Architectures in 2025 — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Apr 18, 2026 · 11 min read
Architecture

Serverless Trade-Offs: An Honest Look

Serverless Trade-Offs: An Honest Look — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

May 2, 2025 · 11 min read
Architecture

Real Use Cases for Lambda@Edge

Real Use Cases for Lambda@Edge — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Apr 29, 2025 · 11 min read
Architecture

CloudFront as Your Application Edge

CloudFront as Your Application Edge — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Apr 26, 2025 · 11 min read
Architecture

A Reference Architecture for Frontend on AWS

A Reference Architecture for Frontend on AWS — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Apr 23, 2025 · 11 min read
E-commerce

Resilience and Failover for High-Stakes Commerce

Resilience and Failover for High-Stakes Commerce — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Apr 20, 2025 · 11 min read
E-commerce

Inventory and Pricing Systems at Scale

Inventory and Pricing Systems at Scale — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Apr 17, 2025 · 11 min read
E-commerce

Search and Recommendations Engineering for E-commerce

Search and Recommendations Engineering for E-commerce — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Apr 14, 2025 · 11 min read
E-commerce

Checkout Engineering That Converts

Checkout Engineering That Converts — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Apr 11, 2025 · 11 min read
E-commerce

PDP Performance Engineering, End to End

PDP Performance Engineering, End to End — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Apr 8, 2025 · 11 min read
E-commerce

Building Scalable E-commerce Architectures

Building Scalable E-commerce Architectures — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Apr 5, 2025 · 11 min read
SEO

Core Web Vitals and Rankings: What the Data Says

Core Web Vitals and Rankings: What the Data Says — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Apr 2, 2025 · 14 min read
SEO

Crawl Budget Optimization at Real Scale

Crawl Budget Optimization at Real Scale — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Mar 30, 2025 · 13 min read
SEO

Log-File Analysis for Real Technical SEO

Log-File Analysis for Real Technical SEO — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Mar 27, 2025 · 11 min read
SEO

Pagination and Faceted Navigation for E-commerce SEO

Pagination and Faceted Navigation for E-commerce SEO — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Mar 24, 2025 · 11 min read
SEO

Rendering Strategies and Their Effect on Rankings

Rendering Strategies and Their Effect on Rankings — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Mar 21, 2025 · 11 min read
SEO

Technical SEO for Tech Leads

Technical SEO for Tech Leads — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Mar 18, 2025 · 11 min read
Performance

Measuring the Conversion Impact of Performance Wins

Measuring the Conversion Impact of Performance Wins — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Mar 15, 2025 · 11 min read
Performance

Building Image Pipelines That Scale

Building Image Pipelines That Scale — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Mar 12, 2025 · 11 min read
Performance

Reducing TBT on Product Pages Without Breaking Features

Reducing TBT on Product Pages Without Breaking Features — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Mar 9, 2025 · 11 min read
Performance

Rendering Performance: A Browser-Level Deep Dive

Rendering Performance: A Browser-Level Deep Dive — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Mar 6, 2025 · 11 min read
Performance

Measuring Real User Performance That Matters

Measuring Real User Performance That Matters — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Mar 3, 2025 · 11 min read
Performance

Long Tasks Are the Enemy of Great UX

Long Tasks Are the Enemy of Great UX — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Feb 28, 2025 · 11 min read
Performance

Fixing INP on Large React Applications

Fixing INP on Large React Applications — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Feb 25, 2025 · 11 min read
Performance

LCP Budgets as an Engineering Contract

LCP Budgets as an Engineering Contract — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Feb 22, 2025 · 11 min read
Architecture

Consistency Models, Explained for Engineers

Consistency Models, Explained for Engineers — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Feb 19, 2025 · 11 min read
Architecture

Queue-Based Architecture Patterns That Survive Production

Queue-Based Architecture Patterns That Survive Production — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Feb 16, 2025 · 11 min read
Architecture

Idempotency in Distributed Systems, Done Right

Idempotency in Distributed Systems, Done Right — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Feb 13, 2025 · 11 min read
Architecture

API Design for the Long Run

API Design for the Long Run — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Feb 10, 2025 · 11 min read
Architecture

Modular Monolith vs Microservices: A Practical Take

Modular Monolith vs Microservices: A Practical Take — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Feb 7, 2025 · 11 min read
Architecture

Micro-Frontends and Their Real Trade-Offs

Micro-Frontends and Their Real Trade-Offs — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Feb 4, 2025 · 11 min read
Architecture

Event-Driven Architecture for Frontend Systems

Event-Driven Architecture for Frontend Systems — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Feb 1, 2025 · 11 min read
Architecture

Designing Systems That Actually Scale

Designing Systems That Actually Scale — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Jan 29, 2025 · 11 min read
Leadership

Running Code Reviews That Actually Improve Code

Running Code Reviews That Actually Improve Code — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Jan 26, 2025 · 11 min read
Leadership

Aligning Engineering With Business Without Losing Your Soul

Aligning Engineering With Business Without Losing Your Soul — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Jan 23, 2025 · 11 min read
Leadership

Engineering Culture, Treated as a Product

Engineering Culture, Treated as a Product — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Jan 20, 2025 · 11 min read
Leadership

How to Have Real Technical Debt Conversations

How to Have Real Technical Debt Conversations — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Jan 17, 2025 · 11 min read
Leadership

Mentoring Engineers in a Way That Sticks

Mentoring Engineers in a Way That Sticks — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Jan 14, 2025 · 11 min read
Leadership

Leading Engineering Squads at Scale

Leading Engineering Squads at Scale — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Jan 11, 2025 · 11 min read
Leadership

Decision Frameworks Every Tech Lead Should Use

Decision Frameworks Every Tech Lead Should Use — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Jan 8, 2025 · 11 min read
Leadership

From Senior Engineer to Tech Lead: What Actually Changes

From Senior Engineer to Tech Lead: What Actually Changes — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Jan 5, 2025 · 11 min read
Performance

Shipping Less JavaScript: A Cultural Shift

Shipping Less JavaScript: A Cultural Shift — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Nov 5, 2024 · 11 min read
Engineering

The HTML-First Philosophy

The HTML-First Philosophy — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Nov 2, 2024 · 11 min read
Architecture

The Islands Architecture, Explained

The Islands Architecture, Explained — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Oct 30, 2024 · 11 min read
Performance

The Real Cost of Hydration

The Real Cost of Hydration — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Oct 27, 2024 · 11 min read
Engineering

Mental Models of the Web Browser

Mental Models of the Web Browser — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Oct 24, 2024 · 11 min read
Performance

Lighthouse CI Everywhere

Lighthouse CI Everywhere — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Oct 21, 2024 · 11 min read
Performance

WebPageTest: Power-User Workflows

WebPageTest: Power-User Workflows — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Oct 18, 2024 · 11 min read
Performance

Performance Debugging With Chrome DevTools

Performance Debugging With Chrome DevTools — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Oct 15, 2024 · 11 min read
Performance

Web Workers Revisited

Web Workers Revisited — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Oct 12, 2024 · 11 min read
Performance

Main Thread Budgets

Main Thread Budgets — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Oct 9, 2024 · 11 min read
Performance

Scroll Performance Techniques

Scroll Performance Techniques — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Oct 6, 2024 · 11 min read
Performance

Back/Forward Cache: A Free Performance Win

Back/Forward Cache: A Free Performance Win — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Oct 3, 2024 · 11 min read
Performance

The Speculation Rules API: Faster by Default

The Speculation Rules API: Faster by Default — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Sep 30, 2024 · 11 min read
Engineering

The View Transitions API in Production

The View Transitions API in Production — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Sep 27, 2024 · 11 min read
Engineering

CSS Container Queries: Worth It?

CSS Container Queries: Worth It? — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Sep 24, 2024 · 11 min read
Engineering

Choosing State Management in 2025

Choosing State Management in 2025 — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Sep 21, 2024 · 11 min read
Architecture

Frontend Architecture Principles That Age Well

Frontend Architecture Principles That Age Well — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Sep 18, 2024 · 11 min read
Engineering

Type-Safe API Contracts End-to-End

Type-Safe API Contracts End-to-End — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Sep 15, 2024 · 11 min read
Engineering

The TypeScript Strict-Mode Mindset

The TypeScript Strict-Mode Mindset — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Sep 12, 2024 · 11 min read
AI

AI Agents in Production: What Actually Works

AI Agents in Production: What Actually Works — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Sep 9, 2024 · 11 min read
AI

Vector Search, Explained for Engineers

Vector Search, Explained for Engineers — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Sep 6, 2024 · 11 min read
AI

LLM RAG Architectures, Honestly Reviewed

LLM RAG Architectures, Honestly Reviewed — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Sep 3, 2024 · 11 min read
AI

AI-Assisted Development in Real Engineering Teams

AI-Assisted Development in Real Engineering Teams — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Aug 31, 2024 · 11 min read
Architecture

REST, GraphQL, tRPC: Picking the Right API

REST, GraphQL, tRPC: Picking the Right API — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Aug 28, 2024 · 11 min read
Engineering

Feature Flags and Performance

Feature Flags and Performance — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Aug 25, 2024 · 11 min read
Engineering

A Practical Real User Monitoring Setup

A Practical Real User Monitoring Setup — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Aug 22, 2024 · 11 min read
Engineering

Error Tracking Without Noise

Error Tracking Without Noise — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Aug 19, 2024 · 11 min read
Engineering

Observability for Frontend, Done Right

Observability for Frontend, Done Right — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Aug 16, 2024 · 11 min read
Architecture

Cost-Optimized AWS Architectures for Frontend

Cost-Optimized AWS Architectures for Frontend — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Aug 13, 2024 · 11 min read
Architecture

Using S3 as a Modern Static Host

Using S3 as a Modern Static Host — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Aug 10, 2024 · 11 min read
Architecture

CloudFront Caching Patterns That Scale

CloudFront Caching Patterns That Scale — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Aug 7, 2024 · 11 min read
Architecture

Lambda@Edge vs Cloudflare Workers

Lambda@Edge vs Cloudflare Workers — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Aug 4, 2024 · 11 min read
Architecture

Serverless Cold Starts and How to Avoid Them

Serverless Cold Starts and How to Avoid Them — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Aug 1, 2024 · 11 min read
Performance

Heatmaps and Performance: A Hidden Cost

Heatmaps and Performance: A Hidden Cost — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Jul 29, 2024 · 11 min read
Performance

A/B Testing Without Wrecking Your CLS

A/B Testing Without Wrecking Your CLS — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Jul 26, 2024 · 11 min read
E-commerce

Edge Personalization Done Right

Edge Personalization Done Right — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Jul 23, 2024 · 11 min read
E-commerce

VTEX FastStore vs Custom: A Performance View

VTEX FastStore vs Custom: A Performance View — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Jul 20, 2024 · 11 min read
E-commerce

Shopify Headless: Performance Pitfalls

Shopify Headless: Performance Pitfalls — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Jul 17, 2024 · 11 min read
E-commerce

Cart and Checkout Performance

Cart and Checkout Performance — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Jul 14, 2024 · 11 min read
E-commerce

PLP Performance: A Deep Dive

PLP Performance: A Deep Dive — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Jul 11, 2024 · 11 min read
E-commerce

Optimizing Product Pages for Conversion and SEO

Optimizing Product Pages for Conversion and SEO — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Jul 8, 2024 · 11 min read
SEO

Mobile-First Indexing in Practice

Mobile-First Indexing in Practice — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Jul 5, 2024 · 11 min read
SEO

Speed as a Ranking Factor: Reality Check

Speed as a Ranking Factor: Reality Check — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Jul 2, 2024 · 11 min read
SEO

Migrating Domains Without Losing Traffic

Migrating Domains Without Losing Traffic — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Jun 29, 2024 · 11 min read
SEO

A Survival Guide for Google Core Updates

A Survival Guide for Google Core Updates — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Jun 26, 2024 · 11 min read
SEO

Rendering and Googlebot: What Really Happens

Rendering and Googlebot: What Really Happens — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Jun 23, 2024 · 11 min read
SEO

JavaScript SEO in 2025

JavaScript SEO in 2025 — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Jun 20, 2024 · 11 min read
SEO

Sitemap Strategies for Large Sites

Sitemap Strategies for Large Sites — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Jun 17, 2024 · 11 min read
SEO

URL Design for SEO and Engineering

URL Design for SEO and Engineering — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Jun 14, 2024 · 11 min read
SEO

Internal Linking as Architecture

Internal Linking as Architecture — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Jun 11, 2024 · 11 min read
SEO

Canonicalization Pitfalls

Canonicalization Pitfalls — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Jun 8, 2024 · 11 min read
SEO

Hreflang, The Right Way

Hreflang, The Right Way — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Jun 5, 2024 · 11 min read
SEO

Structured Data at Scale

Structured Data at Scale — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Jun 2, 2024 · 13 min read
SEO

IndexNow and the State of Modern SEO

IndexNow and the State of Modern SEO — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

May 30, 2024 · 11 min read
Engineering

Accessibility as Performance

Accessibility as Performance — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

May 27, 2024 · 11 min read
Engineering

Design Systems and Performance

Design Systems and Performance — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

May 24, 2024 · 11 min read
Engineering

CSS Architecture in 2025

CSS Architecture in 2025 — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

May 21, 2024 · 11 min read
Engineering

Removing jQuery From a Modern Stack

Removing jQuery From a Modern Stack — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

May 18, 2024 · 11 min read
Performance

The True Cost of Google Tag Manager

The True Cost of Google Tag Manager — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

May 15, 2024 · 11 min read
Performance

Optimizing Third-Party Scripts

Optimizing Third-Party Scripts — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

May 12, 2024 · 11 min read
Performance

Web Fonts and FCP: A Practical Guide

Web Fonts and FCP: A Practical Guide — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

May 9, 2024 · 11 min read
Performance

A Production-Grade Next.js Performance Checklist

A Production-Grade Next.js Performance Checklist — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

May 6, 2024 · 13 min read
Engineering

React 19: What Actually Changed for Performance

React 19: What Actually Changed for Performance — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

May 3, 2024 · 11 min read
Engineering

CI/CD for Modern Frontend Applications

CI/CD for Modern Frontend Applications — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Apr 30, 2024 · 11 min read
Engineering

Turborepo in Anger: Lessons Learned

Turborepo in Anger: Lessons Learned — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Apr 27, 2024 · 11 min read
Engineering

Monorepos Without Tears

Monorepos Without Tears — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Apr 24, 2024 · 11 min read
Engineering

The Performance Cost of TypeScript at Build Time

The Performance Cost of TypeScript at Build Time — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Apr 21, 2024 · 11 min read
Architecture

Offline-First in the Real World

Offline-First in the Real World — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Apr 18, 2024 · 11 min read
Architecture

Service Workers Revisited in 2025

Service Workers Revisited in 2025 — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Apr 15, 2024 · 11 min read
Performance

Smart Prefetching Strategies

Smart Prefetching Strategies — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Apr 12, 2024 · 11 min read
Performance

Performance Budgets in CI Pipelines

Performance Budgets in CI Pipelines — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Apr 9, 2024 · 11 min read
Performance

Setting and Enforcing Web Vitals Budgets

Setting and Enforcing Web Vitals Budgets — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Apr 6, 2024 · 11 min read
Performance

CrUX Data, Explained for Engineers

CrUX Data, Explained for Engineers — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Apr 3, 2024 · 11 min read
Performance

Lighthouse vs RUM: What Each Actually Measures

Lighthouse vs RUM: What Each Actually Measures — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Mar 31, 2024 · 11 min read
Performance

INP Debugging Playbook

INP Debugging Playbook — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Mar 28, 2024 · 11 min read
Performance

Cumulative Layout Shift: A Deep Dive

Cumulative Layout Shift: A Deep Dive — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Mar 25, 2024 · 11 min read
Performance

The Zero-Bundle Philosophy

The Zero-Bundle Philosophy — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Mar 22, 2024 · 11 min read
Performance

Code Splitting Patterns That Pay Off

Code Splitting Patterns That Pay Off — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Mar 19, 2024 · 11 min read
Performance

JavaScript Tree Shaking: A Deep Dive

JavaScript Tree Shaking: A Deep Dive — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Mar 16, 2024 · 11 min read
Performance

Critical CSS, Rethought

Critical CSS, Rethought — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Mar 13, 2024 · 11 min read
Performance

Font Loading Strategies That Actually Work

Font Loading Strategies That Actually Work — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Mar 10, 2024 · 11 min read
Performance

Modern Image Optimization Strategies

Modern Image Optimization Strategies — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Mar 7, 2024 · 11 min read
Performance

Preconnect vs Preload vs Prefetch

Preconnect vs Preload vs Prefetch — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Mar 4, 2024 · 11 min read
Performance

Priority Hints in 2025: A Practical Guide

Priority Hints in 2025: A Practical Guide — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Mar 1, 2024 · 11 min read
Performance

HTML Streaming and Its Effect on LCP

HTML Streaming and Its Effect on LCP — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Feb 27, 2024 · 11 min read
Architecture

CDN Caching for Dynamic Applications

CDN Caching for Dynamic Applications — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Feb 24, 2024 · 11 min read
Architecture

Astro vs Next.js: When to Pick What

Astro vs Next.js: When to Pick What — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Feb 21, 2024 · 11 min read
Architecture

Partial Hydration Strategies for Modern Sites

Partial Hydration Strategies for Modern Sites — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Feb 18, 2024 · 11 min read
Architecture

Streaming SSR in Practice

Streaming SSR in Practice — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Feb 15, 2024 · 11 min read
Architecture

Edge Rendering vs Origin Rendering

Edge Rendering vs Origin Rendering — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Feb 12, 2024 · 11 min read
Architecture

React Server Components, Explained Properly

React Server Components, Explained Properly — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Feb 9, 2024 · 11 min read
Architecture

Next.js App Router: A Deep Architectural Dive

Next.js App Router: A Deep Architectural Dive — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Feb 6, 2024 · 11 min read
Performance

From CRA to Vite: A Performance Migration Story

From CRA to Vite: A Performance Migration Story — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Feb 3, 2024 · 11 min read
Performance

INP: The New Interaction Vital You Need To Master

INP: The New Interaction Vital You Need To Master — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Jan 31, 2024 · 11 min read
Performance

Optimizing Web Performance for E-commerce

Optimizing Web Performance for E-commerce — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Jan 28, 2024 · 14 min read
SEO

Rendering Strategies and Their SEO Impact

Rendering Strategies and Their SEO Impact — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Jan 25, 2024 · 11 min read
SEO

Technical SEO for React and Next.js

Technical SEO for React and Next.js — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Jan 22, 2024 · 14 min read
SEO

SEO Architecture for Large-Scale Applications

SEO Architecture for Large-Scale Applications — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Jan 19, 2024 · 11 min read
Performance

JavaScript Performance at Scale

JavaScript Performance at Scale — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Jan 16, 2024 · 11 min read
Performance

Reducing CLS in React Applications

Reducing CLS in React Applications — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Jan 13, 2024 · 11 min read
Performance

Advanced LCP Optimization Strategies

Advanced LCP Optimization Strategies — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Jan 10, 2024 · 11 min read
Performance

Mastering Core Web Vitals in Modern Web Apps

Mastering Core Web Vitals in Modern Web Apps — a deep technical breakdown by Christian Possidonio on engineering, performance, SEO, AI and technical leadership for digital products.

Jan 7, 2024 · 11 min read