Fixes that ship, not advice.
Every guide is written by engineers who ship. Code-first, opinionated, and short enough to read before standup.
Cutting LCP under 1.5s without a CDN rewrite
A surgical approach to render-blocking JS, preloads, and image hints — the three levers that move LCP the most for the least architectural disruption.
Cutting LCP under 1.5s without a CDN rewrite
- 1Preload the hero image with fetchpriority="high"
- 2Defer non-critical JS with type="module" + async
- 3Serve AVIF/WebP with width + height set
Structured data that actually moves the SERP
Which schema types matter, which are noise, and how to validate the markup so Google trusts it the first time.
Structured data that actually moves the SERP
- 1Pick one schema per template, not three
- 2Validate with Rich Results Test on staging
- 3Wire JSON-LD into the loader, not the client
Shipping WCAG 2.2 AA without a UX rewrite
The eight checks that fix the long tail of A11y regressions — without dragging design into a four-week refactor.
Shipping WCAG 2.2 AA without a UX rewrite
- 1Audit focus order on every interactive surface
- 2Set aria-current and aria-expanded correctly
- 3Lift contrast on muted text to ≥ 4.5:1
A CSP that doesn't break your analytics
Nonce-based CSP rollout plan with a one-week soft-launch — report-only first, enforced second, no 3am incidents.
A CSP that doesn't break your analytics
- 1Start in Content-Security-Policy-Report-Only
- 2Add per-request nonces for inline scripts
- 3Promote to enforced after a clean week
Killing CLS on mobile checkout flows
Common patterns and the layout primitives that prevent them — most CLS on checkout comes from three layout mistakes.
Killing CLS on mobile checkout flows
- 1Reserve space for banners with min-height
- 2Set aspect-ratio on every responsive image
- 3Avoid late-loading web fonts on the critical path
Setting up audit gates in CI
Wire audits into PR comments without slowing the team down — fail loudly on regressions, stay quiet on the rest.
Setting up audit gates in CI
- 1Run audits on every PR against a baseline
- 2Block merge only on critical regressions
- 3Post deltas as a sticky PR comment