scraping expired restaurant menu QR code subdomains for delivery traffic
small local restaurants switch POS systems all the time and forget to renew their custom digital menu subdomains, leaving thousands of laminated QR codes on physical dining tables pointing to dead URLs.
a guy built a tool that checks domain registration status on local restaurant menu links found in google maps reviews. when a menu subdomain expires, he buys it for $10 and sets up a clean redirect to a third-party food delivery affiliate page. he collects steady commission checks every time a diner scans the table code to check lunch specials.