SSL Certificates

Qualified SSL Certificate

A woman is working on a laptop and holding a smartphone in her left hand.A woman is working on a laptop and holding a smartphone in her left hand.

With a.sign SSL qualified you acquire a server certificate of the highest security level: The encryption is qualified and therefore eIDAS compliant. With this, you not only increase the reliability of your homepage, but also rely on a connection between web server and client that is protected against misuse. This guarantees data security - and ensures trust in you and your website.


All prices in € excluding 20% VAT

a.sign SSL qualified

Order now
a.sign SSL qualified€ 200.00
Logo PlusLogo Minus

SSL certificates are only issued for companies in the Austrian or European company register.

If the domain holder is an organization, the data is verified by A-Trust by means of an excerpt from the Austrian Company Register or the European Business Register (EBR). In addition, an official photo ID of the authorized representative(s) is required.

If the applicant organization is not a registered company, the verification is performed by submitting a copy of a document proving that the organization actually exists - a recent extract (not older than three months) from a competent official register or comparable documents. In addition, verification may also be carried out using databases of trusted third parties. If the person authorized to sign for your organization is not named in the company register or EBR, you must also submit proof of your authority to sign.

The authorization whether you are allowed to use the specified domain name is checked in the databases of the registration organizations and DENIC. The key length must be at least 2048 bits (RSA). Only SHA-256 is accepted as hash algorithm

The certificate request must contain the values C (nationality of the domain holder or country of the organization's registered office) and CN (domain name). Optionally, the values O (organization name according to the company register), or OU can be set.