Google Search Operator – site:example.com -inurl:www -inurl:dev -inurl:shop

I’m not going to list every possible combination of Google operators, but keep in mind that you can chain most operators. Let’s say you suspect there are some stray sub-domains, but you aren’t sure what they are. You are, however, aware of “www.”, “dev.” and “shop.”. You can chain multiple “-inurl:” operators to remove all of these known sub-domains from the query, leaving you with a list of any stragglers.