Are you new to CAcert?

CAcert.org is a community-driven Certificate Authority that issues certificates to the public at large for free.

CAcert's goal is to promote awareness and education on computer security through the use of encryption, specifically by providing cryptographic certificates. These certificates can be used to digitally sign and encrypt email, authenticate and authorize users connecting to websites and secure data transmission over the internet. Any application that supports the Secure Socket Layer Protocol (SSL or TLS) can make use of certificates signed by CAcert, as can any application that uses X.509 certificates, e.g. for encryption or code signing and document signatures.

If you want to have free certificates issued to you, join the CAcert Community .

If you want to use certificates issued by CAcert, read the CAcert Root Distribution License .This license applies to using the CAcert root keys .

Latest News

Expanded support

Heat, floods, hurricanes and other unplannable events quickly lead to delays. We are proud that, despite everything, the handover of the keys to support went smoothly yesterday and the new volunteers now have access to the relevant systems to assist the existing team. On the allegorical picture you can see Joost handing over the access […]

New signer proves itself in use

EN: Signer is running again DE: Signer ist wieder in Betrieb FR: Signataire fonctionne à nouveau ES: Firmante vuelve a funcionar IT: Firmatario è di nuovo in funzione The signer has been running again since yesterday, Friday, around 13:00 CEST. We then (while we were doing other work) watched the processing for about another hour… […]

Datacenter-Visit on 2021-07-16 *UPDATE*

The activation of signer machine was successful, all pending certificates were processed in the last hours. Short version: There is a visit at the datacenter planned to enable the signer again (and do some other maintenance there). Long version: Unfortunately it was not possible to get the signer back to work again during the last […]

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For CAcert Community Members

Have you passed the CAcert Assurer Challenge yet?

Have you read the CAcert Community Agreement yet?

For general documentation and help, please visit the CAcert Wiki Documentation site .For specific policies, see the CAcert Approved Policies page.

Do you want to help CAcert?

We are facing an uphill battle to fund this service and could do with your help?
If you can, please donate.
AU$50 per year for this button
or a one off donation for this button whatever you can afford to help

If you are located in Australia, use bank transfer instead.

CAcert bank account details:

  • Account Name: CAcert Inc
  • SWIFT: WPACAU2S
  • BSB: 032073
  • Account No.: 180264


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