Case Studies

Real sites. Real fixes. Measurable results.

A closer look at the technical SEO, performance, and full-stack work behind three sites we run and maintain end-to-end — from broken Core Web Vitals to working affiliate infrastructure.

Client
Dr. Gustavo Vilela — Medical Clinic
Year
2026
Services
Technical SEO, Performance, Security Hardening

Security & performance hardening for a medical clinic site

The site was running on an outdated caching setup with unresolved accessibility issues and recurring server errors. We rebuilt the caching layer, fixed WCAG contrast issues, resolved a critical theme update that broke mobile performance mid-project, and locked down server-level reliability.

  • Migrated caching from LiteSpeed Cache to W3TC for more granular control
  • Diagnosed and fixed an HTTP 508 loop by replacing WP-Cron with a real server cron job
  • Built a child theme to survive future theme updates without losing custom fixes
82→93
Accessibility score
2.7s
Largest Contentful Paint
0
Cumulative Layout Shift
Client
ListaSecreta
Year
2015 — ongoing
Services
Technical SEO, Full-Stack Development, Plugin Development

Custom affiliate infrastructure for a coupon platform at scale

Beyond content, this Brazilian coupon platform needed its own tooling: affiliate networks with inconsistent link formats, manual expiry tracking, and a Core Web Vitals problem traced to a single misconfigured image template. We built the plugin ecosystem to fix that at the root, and recovered the site from two separate malware incidents along the way.

  • Diagnosed a CLS of 0.495 to a single Divi template rendering 400×400 logos without reserved dimensions — one fix, applied site-wide
  • Built a custom Coupon Importer plugin integrating Awin, Rakuten, Admitad, and CityAds with per-shop link templates
  • Identified and removed two separate malware injections, restoring search visibility
72→92
Desktop PageSpeed score
500+
Pages on managed infrastructure
4
Affiliate networks integrated
Client
Drinko
Year
2019 — ongoing
Services
Full-Stack Development, Content Automation, SEO

An automated content & affiliate pipeline for a wine platform

Drinko tracks wine prices and content across multiple retailers that don’t offer clean APIs. We built a custom crawler plugin that reads structured data and storefront feeds directly, paired with an AI-assisted content layer and automated, multi-currency affiliate revenue tracking — replacing what used to be manual, retailer-by-retailer work.

  • Built a crawler reading structured data (ld+json) and Shopify product feeds across multiple wine retailers
  • Integrated the Claude API into the content pipeline to generate product descriptions at scale, with a rule-based fallback
  • Automated affiliate revenue reporting across networks and currencies via Google Apps Script
3+
Retailers integrated
6+
Years maintained & growing

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