Ensure the authenticity of your website via the “https” protocol and let your visitors know that they can exchange any personal information with your website securely, since this data is encrypted when transmitted over the Internet.

Use an SSL/TLS certificate at your website if you:

• perform money transactions (e-shops)
• provide user authentication services (login/sign-up)
• exchange personal/confidential information (e.g. passwords, credit/debit cards)
• exchange sensitive personal information (e.g. medical information)

For personal or sole proprietorship business websites

You may provide the basic level of security to your visitors (e.g. data encryption during transmission) by authenticating the domain name of your website using one of the following Certificate types:

• SSL DV (Domain Validated): SSL/TLS Server Certificate that includes one or more FQDNs (e.g. server1.example.com, www.απθ.gr, www.απθ.ελ)
• SSL DV Wildcard (Domain Validated - Wildcard): SSL/TLS Server Certificate that includes one or more wildcard domains (e.g. *.example1.com, *.απθ.gr, *.απθ.ελ)
• SSL DV Onion (Domain Validated - Onion): SSL/TLS Server Certificate that includes one or more RFC 7686 ".onion" special-use Domain Names (e.g. www.4gmrlefxkq4mtan6a2lqwfwa7un4brjlatka75nwdczemqqwn3wznnad.onion, mysite.4gmrlefxkq4mtan6a2lqwfwa7un4brjlatka75nwdczemqqwn3wznnad.onion)
• SSL IV (Individual Validated): SSL/TLS Server Certificate that includes one or more FQDNs (e.g. server1.example.com, www.απθ.gr, www.απθ.ελ) and the information of the Natural Person who owns/controls the domain(s)
• SSL IV Wildcard (Individual Validated - Wildcard): SSL/TLS Server Certificate that includes one or more wildcard domains (e.g. *.example1.com, *.απθ.gr, *.απθ.ελ) and the information of the Natural Person who owns/controls the domain(s)

For enterprises or organizations

You may provide the basic level of security to your visitors (e.g. data encryption during transmission) by authenticating the domain name of your website using one of the following Certificate type:

• SSL OV (Organization Validated): SSL/TLS Server Certificate that includes one or more FQDNs (e.g. server1.example.com, www.απθ.gr, www.απθ.ελ) and the information of the Legal Entity that owns/controls the domain(s)
  
• SSL OV Wildcard (Organization Validated - Wildcard): SSL/TLS Server Certificate that includes one or more wildcard domains (e.g. *.example1.com, *.απθ.gr, *.απθ.ελ) and the information of the Legal Entity that owns/controls the domain(s)
  
  
  

Offer your visitors the highest security level indicators via direct confirmation of your website’s authenticity. In the browser address bar, the name of your enterprise or organization will be displayed in green color or other positive indicators.

• SSL ΕV (Extended Validated): SSL/TLS Server Certificate that includes one or more FQDNs (e.g. server1.example.com, www.απθ.gr, www.απθ.ελ) and the information of the Legal Entity that owns/controls the domain(s) and official Registry information for the Legal Entity
• SSL QWAC (Qualified Web Authentication Certificate): SSL/TLS Server Certificate that includes one or more FQDNs (e.g. server1.example.com, www.απθ.gr, www.απθ.ελ), the information of the Legal Entity that owns/controls the domain(s), official Registry information for the Legal Entity and the issuing CA is a Qualified Trust Service Provider per Regulation (EU) 910/2014 (eIDAS)
• SSL QWAC-PSD2 (Qualified Web Authentication Certificate - PSD2): SSL/TLS Server Certificate that includes one or more FQDNs (e.g. server1.example.com, www.απθ.gr, www.απθ.ελ), the information of the Legal Entity that owns/controls the domain(s), official Registry information for the Legal Entity, the issuing CA is a Qualified Trust Service Provider per Regulation (EU) 910/2014 (eIDAS) and its identification is designated by the National Competent Authorities (NCAs) according to Payment Service Directive 2 (EU) 2015/2366