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Opt-Out of Data Collection

  • Updated
Censys strives to be a good citizen of the security industry. We never attempt to log in to any service, read any database, or otherwise gain authenticated access to any system.

Can I opt-out of Censys data collection?

Censys scans help the scientific community accurately study the Internet. The data Censys gathers is sometimes used to detect security problems and to inform operators of vulnerable systems so that they can be fixed. If you opt-out of the research, you might not receive these important security notifications.

If you wish to opt-out, you can configure your firewall to drop traffic from the subnets we use for scanning:

  • 162.142.125.0/24
  • 167.94.138.0/24
  • 167.94.145.0/24
  • 167.94.146.0/24
  • 167.248.133.0/24
  • 2602:80d:1000:b0cc:e::/80
  • 2620:96:e000:b0cc:e::/80

Additionally, our HTTP-based scans use a Censys-specific user agent, which can be used to filter requests from our scanners.

Mozilla/5.0 (compatible; CensysInspect/1.1; +https://about.censys.io/)

 

We do not manually remove results from Censys; however, if you have blocked these subnets, your host(s) will automatically be pruned out the next time we attempt to scan the publicly accessible services.  Services are typically pruned out of Censys Search within 24-48 hours.

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