Shodan has a series of special filters that allow us to optimize search results. Among the filters, we can highlight:

• after/before: Filters the results by date
• country: Filters the results by two-digit country code
• city: Filters the results by city
• geo: Filters the results by latitude/longitude
• hostname: Filters the results by host or domain name
• net: Filters the results by a specific range of IPs or a network segment
• os: Performs a search for a specific operating system
• port: Allows us to filter by port number