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

Re-signed Class-3-Certificate – take action now!

English | Deutsch | Français | Español | Fingerprints English | We already reported here in January that our Class 3 certificate is being re-signed. This was done a few weeks ago in our data centre in the Netherlands and subsequently tested extensively by our volunteers. The new Class 3 certificate can now be downloaded […]

Support reinforced

The free certificate authority CAcert is increasing its support. In the past few days, the Board of Directors approved the appointment of Aleš to the post of Support Engineer. He has been working in the CAcert community for many years. In addition to important knowledge from his professional work, he has developed a lot of […]

Report of visit at datacenter on 2021-04-19

After a new member was added to the access engineers team it was possible to visit the datacenter following the corona-guidelines as well as our own security guidelines. During this visit we applied the long-awaited patch for bug 1438 by adding the serial number to certificate revocation lists. We installed a new infrastructure-server sponsored from […]

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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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