Contact Us


Here's how to best get in touch with the Censys Team:

Search and Query Help


If you need help constructing a search or query, please reach out on the Censys Discussion. By answering these questions in a public forum, other community members can help out, and the answers will benefit other users.

Requesting Additional Access


If you need additional access, please contact us at requests@censys.io. Please include your legal name, any academic affiliation, username, and some information on the project you're working on. Please create a Censys account before contacting us.

Requesting Results Removal


If you would like your host to be excluded from the Censys results, you can block traffic from the following subnets: 141.212.121.0/24 and 141.212.122.0/24. However, we would encourage you to consider whether this actually accomplishes what you are intending. Internet-wide scanning is pervasive and others will still find your host even if it's not listed in Censys. We will not censor specific hosts or certificates from the Censys results or historical datasets.

If you are a Cloudflare user and do not want your origin web server to be accessible to the public, there is information available here on how to set up your firewall.

Other Questions or Comments?


For all other questions or concerns, the Censys Team can be reached at team@censys.io.