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THE JOURNAL

Notes on building, shipping & securing the web.

How we shipped a support agent that resolves 62% of tickets

FEATURED · AI

How we shipped a support agent that resolves 62% of tickets

The architecture, evals and guardrails behind a production AI agent — and the three mistakes we made first.

Daniel Reyes

Sep 18, 2026 · 5 min read

All AI WordPress Shopify Performance Security SEO E-commerce Design DevOps Engineering

INP in practice: fixing the metric that fails most stores

Performance · 5 min

INP in practice: fixing the metric that fails most stores

Real traces from five client sites and the fixes that moved them into the green.

Maya Okafor · Aug 09, 2026

Bringing TTFB down: database, cache and hosting fixes

Performance · 5 min

Bringing TTFB down: database, cache and hosting fixes

A slow first byte delays everything that follows. How we trace server response time from the network to the database and cut it down.

Leo Tanaka · May 26, 2026

Speeding up WordPress without another optimization plugin

Performance · 5 min

Speeding up WordPress without another optimization plugin

Stacking caching and optimization plugins rarely fixes a slow WordPress site. Where the time actually goes, and how we get it back.

Maya Okafor · Mar 24, 2026

Web fonts without the performance tax

Performance · 5 min

Web fonts without the performance tax

Brand typography does not have to cost you LCP or layout stability. How we choose, subset, load and fall back on web fonts.

Nadia Haddad · Feb 17, 2026

Caching HTML at the edge without serving stale carts

Performance · 5 min

Caching HTML at the edge without serving stale carts

Full-page caching at the CDN can cut server response times dramatically. How to do it without leaking personal data or breaking carts.

Leo Tanaka · Dec 02, 2025

Chasing down layout shift: the CLS fixes we reach for first

Performance · 5 min

Chasing down layout shift: the CLS fixes we reach for first

Cumulative Layout Shift is rarely caused by one thing. The usual suspects, how to catch them in the field and the fixes that stick.

Ravi Iyer · Oct 07, 2025

Field data vs lab data: reading CrUX, RUM and Lighthouse together

Performance · 5 min

Field data vs lab data: reading CrUX, RUM and Lighthouse together

Lighthouse says 95, Search Console says failing. Why both can be right, and how we use each source to make decisions.

Ravi Iyer · Aug 05, 2025

Taming third-party scripts without starting a war with marketing

Performance · 5 min

Taming third-party scripts without starting a war with marketing

Tags, pixels and widgets often account for most of a page's JavaScript. A governance process that keeps the useful ones and removes the rest.

Ravi Iyer · Jun 03, 2025

Fixing LCP on image-heavy homepages

Performance · 5 min

Fixing LCP on image-heavy homepages

Large hero images are the most common cause of slow Largest Contentful Paint. A step-by-step approach to finding and fixing the delay.

Ravi Iyer · Apr 08, 2025

Setting performance budgets that survive the next redesign

Performance · 5 min

Setting performance budgets that survive the next redesign

Most speed gains erode within a year. Budgets enforced in CI and tied to business metrics are how we keep them.

Ravi Iyer · Feb 11, 2025

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