Snapy price research bot

Snapy helps secondhand and consignment stores price used goods. This bot reads public product pages and sitemaps of shops whose rules invite it, to record what each product cost new (its MSRP).

• User-Agent: SnapyPriceCheck/1.0 (+https://bot.snapy.pro; MSRP research for secondhand stores)
• Requests are signed with Web Bot Auth; key directory: /.well-known/http-message-signatures-directory
• It obeys robots.txt, sends one request at a time at least 3 seconds apart, waits as asked on HTTP 429, and stops on repeated 403s.
• It reads only; it never places orders, fills forms or signs in.