It's a browser extension that finds if/where you can buy the current domain name loaded in your browser at the lowest price.
If you're searching for a domain name on a registrar or aftermarket website, it auto-detects the searched domain and finds the best prices.
It uses the aftermarket and registrar data aggregated by DomDB.com, and shows other domain info like registered extensions, keywords, DNS records, etc.
Available for Chrome, Firefox, and MS Edge.
