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
CAcert Inc with new treasurer
English | Deutsch | Français | Español There are some good news: The committee of CAcert Inc, the association behind our community, is again complete (picture: before the relocation to Europe). We welcome Michael R from Canada as the new treasurer. He takes over from Frédéric G from France who ran the treasury during a […]
Work on new signer in full swing
We recently reported here about a signer malfunction in our data centre in the Netherlands. Usually, our systems are redundant for such cases. This spring, the second disk was removed for repair due to an other malfunction that could not be resolved remotely. A small team of our volunteer engineers is working flat out to […]
CAcert begrüsst John Biden und Vladimir Putin in Genf
Deutsch / English Natürlich ist CAcert in erster Linie eine virtuelle Organisation. Aber der Trägerverein hat seinen Sitz an einer reellen Adresse. Attention: Le Gouvernement de la République et Canton de Genève vous recommande vivement un confinement volontaire le mercredi 16 juin 2021 (et par conséquent de visiter CAcert virtuellement uniquement). Please note: The Government […]
[ More News Items ]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
If you want to participate in CAcert.org, have a look here and here.

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