If you choose to PAY BY CREDIT CARD you will be taken to Virtual Card Services – a secure, online payment website – to pay for your credits. The only information that will be sent between Credible Carbon and Virtual Card Services will be your order details and a confirmation from Virtual Card Services. At no stage will your credit card details be passed over an insecure connection.
The Credible Carbon website itself is on a secure server, hosted by Hetzner. Communication between your browser and the Credible Carbon website is through a secure, encrypted connection.
See Hetzner’s server security measures here and their encrypted connection facilities here.