Systems I built for SEO, GEO and measurement, plus a few side builds.
Sleeplay · GEO
Visibility, share of voice and cited sources in Peec AI across AI Overviews, ChatGPT and Perplexity; a Gemini grounding tracker as a proxy for query fan-out; AI crawlers unblocked in Cloudflare. Orders from AI assistants +40% year over year.
Sleeplay · Merchant Center
A supplemental feed with Google’s conversational attributes (Q&A, related products, variants, popularity), live since Jul 2026 with automated refresh. The active catalog (889 products) was verified against manufacturer sources to feed it.
Sleeplay · Competitive intelligence
A weekly read on 6 competitor stores that answers three questions. How they price: MAP parity and who undercuts it, discount anchoring with strikethrough prices, coordinated manufacturer price rises, Black Friday tiers built weeks ahead. What they publish: editorial pace, the topics we were missing and shifts in AI visibility. Where their business is going: four brands consolidated into one platform, private labels replacing third-party products, new ad channels, clinic referral pages and buy-now-pay-later offers. Every finding goes to the team that owns it with a recommendation and stays open until it is decided.
Loona Marketing · 5 brands
Daily Search Console archive in SQLite beyond the 16-month limit, a Google-update watcher (14 days before vs after), causal-impact tooling for SEO changes and AI-crawler verification against published bot IP ranges.
Surtilight · Measurement
The ad click ID is captured on the store and uploaded to Google Ads every day as an offline conversion, so bidding learns from real orders; the setup was validated end to end before going live. Weekly monitors compare Shopify orders with GA4 purchases, alert when the gap goes over 20% and track attribution coverage.
Sleeplay · Reporting
Pulls Search Console and GA4 through their APIs and builds the monthly deck, with our site changes and Google updates marked on the charts so every movement in traffic arrives with its explanation instead of a guess.
Sleeplay · Content research
A content-gap tool that weights competitor pages by their SERP position (BM25), extracts topics and maps headings with embeddings, plus Reddit demand mining through the official API. Both feed the SEO briefs.
Own tools · run locally
Small command-line tools I wrote, on top of open-source software I self-host (Firecrawl, crawl4ai, changedetection.io): a scraper that escalates from the lightest method to a headless browser and stops at captchas instead of solving them, YouTube transcripts in bulk, Google Trends and competitor-catalog diffs, structured-data extraction, an agentic-commerce check for Shopify stores, and one command that starts and stops the local services.
Loona Marketing · 6 client accounts
Adapted per client and connected to GA4, Search Console, Ahrefs, SEMrush, DataForSEO, Screaming Frog, Shopify, GTM and Cloudflare, so audits and reports run from one place. Includes brand-specific workflows for content briefs, product pages, collections and technical fixes.
Loona Marketing · Automation
Google Apps Script for validation, anti-spam, Google Sheets and CRM handoff with no manual data entry. Deploys went from about 30 minutes to a single command with a CLI I built.
Personal build · 2026
A pipeline on official job APIs that filters roles by language, visa sponsorship and salary threshold, and an MCP server that audits a LinkedIn profile against the keywords of real job titles. No scraping, no account access.
Hiring in Berlin? Let's talk.
Contact →