whoblinked

Wed, 01 Jul 2026 00:00:00 +0000

What it is #

whoblinked watches your competitors’ catalogues and tells you what they launched, discontinued and repriced. I co-founded it and have been CTO since July 2026. The code is private.

I built it end to end, from the data model and API contracts to the React product. It is multi-tenant.

How it works #

Extraction with fallbacks. Each scan tries the store’s API first, then structured markup on the page, then a headless browser.
Block detection. A scan that was blocked or failed is recognised as such, so it never shows up as a change in a competitor’s catalogue.
LLM features. Competitor discovery, gap analysis and ownership research. Model output is checked against live search results before a user sees it.
Cost and release. Every LLM call has its cost tracked, and an automated test-and-release pipeline gates deploys.

Data Pipelines on Narasimha Karthik J

whoblinked

What it is #

How it works #