About

SneakerPulse is a one-person data product by Alexander Isom.

I started it to answer a simple question with real numbers: what do sneakers actually sell for? It now tracks 24.4M+ completed resale sales on GOAT and StockX, updates itself every day, and turns that data into prices, tools and findings anyone can check.

Alexander Isom on LinkedIn Email me How it is built

What I do

• Decide what to build and why. I read Search Console and GA4 to see what visitors are asking, then choose the pages, tools and analyses that answer it.
• Own the data. A daily pipeline loads marketplace sales into Postgres, checks that each feed actually delivered, and rebuilds every page from the result.
• Set the analytical bar. Trends compare each shoe with itself, so a change in product mix cannot fake one; time-series tests use effective sample sizes; findings that rest on many tests are corrected for false discoveries; every number states its window and sample size. Results that do not hold up are reported as null.
• Run it like a product. Design, copy, SEO, social posts and the weekly Call It game are one loop: ship, measure, keep what works.

How the work gets done

I build SneakerPulse with Claude Code, an AI coding agent that writes much of the code and runs scheduled checks on the data and the live site. I direct it: what to build, which questions to ask of the data, the standards results must meet, and what goes live. The how it is built page covers the architecture: Python on GitHub Actions, Neon Postgres, a Cloudflare Workers API and static pages on Cloudflare Pages.

Work worth a look

Get in touch

The quickest way to reach me is LinkedIn, or email [email protected]. If you want something like this built, see work with us.