Retail · EU · Price comparison
One-link price comparison across marketplaces
A retail price tool needed to compare any product across the top marketplaces from a single link — despite aggressive anti-bot defences. The brief: reliable parsing and an instant "where is it cheapest" answer, delivered in both a Telegram bot and a web app.
Marketplaces
3
compared per query
Anti-bot success
96%
live fetches
Lookup time
~6s
all sites in parallel
Cheapest pick
auto
per query
Searches per week
price lookups, thousands
Where it ends up cheapest
share of winning offers
◆ Findings
- Shoppers had to open every marketplace by hand to compare a single product.
- Marketplace anti-bot defences blocked naive scrapers within minutes.
- Nothing answered "where is this cheapest right now?" in one place.
✓ What we did
- TLS-fingerprint parsers that survive anti-bot checks on every marketplace.
- A single link returns the price and the cheapest rival across all sites.
- Shipped as a Telegram bot and web app with free daily limits and prepaid query packs.
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