Data Collection
The domains collection is composed of the Alexa top 1 million domains, fetched and resolved daily and then scanned. When scanning, we collect relevant security information about the DNS configuration of the domain, SMTP (and any STARTTLS certificates), and websites (both HTTP and HTTPS).
Usage
Information
BigQuery dataset: censys-io.domain_public
The full Domains dataset schema can be explored here [more information]
Example
Find websites using a specific cipher suite:
SELECT domain, alexa_rank
FROM `censys-io.domain_public.current`
WHERE p443.https.tls.cipher_suite.name = 'TLS_RSA_WITH_AES_256_CBC_SHA'