Lindsey Sobrinski
Growth that survives the measurement.
Growth & Performance Marketing Leader · 15+ years · enterprise retail, DTC, B2B & agency
I lead growth and performance marketing end to end: cross-channel paid media, lifecycle and retention, organic and AI search, and the measurement that keeps all of it honest. I allocate by incrementality and contribution margin, not platform-reported ROAS, I own the number, and I build the work myself as much as I lead it. AI-native in how I operate, not as the pitch.
Four lanes
They are one system. Each one makes sense of the other three.
SEO, AEO & GEO
Organic and AI-search visibility built from zero, with a distinct play per engine: ChatGPT for awareness, Gemini for consideration, Perplexity for research. Crawler access, structured data, answer-first content, and the off-site corroboration citations depend on.
See the lane →Paid Media Analysis & Strategy
Planning and buying across paid social, search, programmatic, video, CTV, and out-of-home, with holdouts, geo tests, and media mix modeling establishing what each channel actually contributes before a budget moves.
See the lane →Lifecycle Marketing
Retention, loyalty, churn, and win-back, plus the subscription economics underneath them. Acquisition decides how many customers you get; this decides whether getting them was a good idea.
See the lane →User Journey & Conversion
The real path buyers take, the steps where intent quietly dies, and experimentation run with enough rigor to tell a real lift from a lucky two weeks.
See the lane →Tools
Interactive tools I built. Free, no signup, nothing collected. Use them, argue with them, share them.
GEO Site Analyzer
Paste a URL and see what ChatGPT, Gemini, and Perplexity can actually read and cite: AI-crawler access, structured data, answer-first content, llms.txt, and a per-engine readiness score.
Analyze a site →Prompt Cluster Mapper
Enter one topic and get the prompt clusters buyers actually ask, each assigned to the engine that owns that moment: ChatGPT for the awareness questions, Gemini for branded and comparison, Perplexity for validation research. Plus the asset to build and the schema it needs.
Map a topic →Crawl Budget Waste Checker
Find where Googlebot burns its budget on pages that never earn: sitemaps full of redirects and dead URLs, noindex pages that still get crawled, canonical waste, and parameter sprawl. Add your Search Console numbers to size the leak.
Check crawl budget →Incrementality Gap Calculator
Your platform says the campaign worked. How much of that was going to happen anyway? See the gap between reported ROAS and likely incremental ROAS.
Run the numbers →AEO/GEO Readiness Scorecard
Ten blunt questions on whether your brand is visible where buying decisions now start, with a score and a fix-first list.
Get your score →Latest writing
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Your buyer runs an AI background check before they buy. Here is how to see what it says.
Almost half of shoppers ask a chatbot about the seller first, and 57.5% have been talked out of a purchase. A four-step audit of what AI says about you.
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LTV to CAC is a ratio. Payback is a constraint.
Two businesses with identical LTV to CAC ratios and different payback periods are not in the same business. Why payback, not the ratio, is what actually governs how fast you can grow....
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Churn is four problems added together, and you're fixing the wrong one
A failed credit card and a disappointed customer both show up as a cancellation. Splitting churn into involuntary, never-activated, completed, and dissatisfied is what turns a rate into a plan.
About
15+ years in growth and performance marketing across enterprise retail, B2B services, agencies, and subscription DTC. Player-coach, measurement-obsessed, AI-native. Read the full story →