You can use search tokens to search for certificate details on Certificate tab.
Show certificates on assets that have this asset name
Show certificates on assets that have this listening port open
Show certificates on assets that have this SSL/TLS protocol
Show certificates on assets that have this service
Show certificates that have this Certificate Grade for an instance on the host
The Qualys Query Language (QQL) supports the following logical or Boolean query operators. Use these operators in your queries to narrow down or broaden your search.
Show the certificates issued by DigiCert and will expire in 30 days
certificate:(expiryGroup:In 30 Days) and
Exclude the certificates that are issued by Qualys in the search result
Show the assets having an operating system as Windows or Netscaler
asset:(operatingSystem:Windows) or asset:(operatingSystem:Netscaler)