Certum Commercial SSL Certificate is an advanced solution in the field of Internet security, offered by Certum, a company that enjoys a reputation as one of the leading providers of certification services in Europe. Thanks to many years of experience and the trust of customers around the world, Certum provides products with the highest security standards. Certum Commercial SSL is a Domain Validation (DV) certificate that provides effective encryption of data transmission, guaranteeing the confidentiality of communication between the user and the server. This certificate supports both traditional RSA algorithms and modern cryptographic algorithms based on elliptic curves (ECC), which offer a higher level of security while reducing the load on the server and faster encryption process.

In addition to advanced technical capabilities, Certum Commercial SSL also offers a high level of trust, which is confirmed by a financial guarantee of up to € 200 000. This guarantee is an additional security for website owners, providing certainty that in the event of a breach of the integrity of the certificate, any financial losses will be covered.

This certificate is compatible with most modern web browsers and supports a wide range of devices, providing users with a visible security sign in the form of a green padlock next to the URL. The key length can be up to 4096 bits, which further strengthens protection against potential threats. With wide compatibility, easy installation and the ability to choose a validity period from one to three years, Certum Commercial SSL is a reliable and versatile solution for securing websites of varying scale and complexity.

Do you want to secure multiple domains and subdomains under a single certificate? Check out the Certum Commercial SSL Multi-Domain version for multiple domains and subdomains using SAN (Subject Alternative Name) technology.

• Advanced Encryption: Certum Commercial SSL offers encryption with keys up to 4096 bits long and support for ECC cryptographic algorithms, which provides a high level of data transmission protection and increases resistance to cryptographic attacks.
• Domain Validation (DV): The certificate is based on the domain validation method, which allows for quick and efficient confirmation of domain ownership without the need to provide additional documentation, while ensuring a high level of security.
• Broad Compatibility: It is compatible with over 99% of web browsers and mobile devices, including Google Chrome, Mozilla Firefox, Safari, Microsoft Edge, iOS, Android, which guarantees stability and security on various platforms.
• Cross-platform Support: The certificate can be installed on various servers and operating systems, including Apache, Nginx, Microsoft IIS, which provides flexible implementation in various IT environments.
• Financial Guarantee: Certum Commercial SSL is covered by a financial guarantee of up to € 200 000, providing additional security for the website owner in the event of a certificate breach.
• Visible Trustmark: The Certum security seal, which can be placed on the website, increases user confidence by informing them about the SSL security, which translates into a better user experience and a higher level of trust in the website.
• Fast Validation and Issuance: The certificate validation and issuance process is automated and can be completed within minutes to hours, allowing for the rapid implementation of security measures on the website.
• Technical Support: Certum offers professional technical support, available through various communication channels, providing quick assistance in the installation, configuration and troubleshooting of certificate issues.
• Compatibility with TLS Protocols: Support for modern TLS (Transport Layer Security) protocols ensures secure connections, minimizing the risk associated with vulnerabilities of earlier versions of the SSL/TLS protocols.

The Certum Commercial SSL Security Seal is a visible trust mark that can be placed on a website to inform visitors about the use of an SSL certificate and the provision of secure communication. It is a graphic element that indicates that the website is protected by a certificate issued by Certum, which means that data transmission between the user and the server is encrypted and secured against interception by third parties. The Certum security seal can be placed on various pages of the website, such as the home page, login page, or payment forms, which increases the sense of security of users when using the website. The security seal not only strengthens the trust of users, but also helps build the reputation of the website as trustworthy and secure. As a result, users are more likely to take actions on the website, such as registering an account or making a transaction, knowing that their data is properly protected.

The Certum Commercial SSL certificate validation procedure is a process aimed at confirming the ownership of the domain for which the certificate is to be issued. This verification is based on the Domain Validation method, which means that the process does not require providing company registration documents or other detailed information about the owner of the website. The first step is to submit a certificate application, in which the user provides domain details and generates a pair of keys (public and private). Certum then sends the applicant an email asking for confirmation of domain ownership. The email is sent to the domain’s administrative address, such as admin@, administrator@, or webmaster@, which is intended to ensure that the person submitting the application has actual control over the domain. After receiving the email, the user must click on the verification link that confirms the domain ownership. Alternatively, Certum can also offer other verification methods, such as placing a unique file on the domain server or setting the appropriate DNS record. After successful verification, Certum issues an SSL certificate that is ready to be installed on the server. The entire validation process is usually quick and can be completed within a few minutes to a few hours, depending on the selected verification method and the correctness of the data provided during the application. The certificate is then installed on the server, which allows for the protection of communication between users and the website via SSL/TLS encryption. Full validation procedure has been described in our knowledgebase: Validation and verification for Certum Commercial SSL certificate.

The Certum Commercial SSL certificate is designed to provide broad compatibility with most web browsers and mobile devices. This means that users visiting a site secured with this certificate can be assured that their connection will be protected no matter what browser or device they use. Certum Commercial SSL supports all major browsers, such as Google Chrome, Mozilla Firefox, Safari, Microsoft Edge, and older versions of Internet Explorer, making it a versatile solution for websites with a diverse user base. Similarly, the certificate is compatible with mobile operating systems, including iOS, Android, and Windows Mobile, ensuring secure communication on smartphones and tablets as well. This means that mobile users can use the site without worrying about the security of their data, regardless of the device they are using. Certum Commercial SSL is also compatible with a wide range of mobile browsers, further enhancing its versatility and making it a suitable solution for websites accessible on different platforms. This broad compatibility means that implementing the Certum Commercial SSL certificate increases user confidence and minimizes the risk of security issues, regardless of the Internet browsing tool used. Please check the full list of supported devices and browsers.

Technical support for Certum Commercial SSL is available to support users at every stage of using the certificate. It includes both the process of installing the certificate on the server and solving problems related to the configuration or later use of the certificate. Certum specialists are available to provide support in the selection of the appropriate encryption algorithm, server configuration and security optimization. In the event of problems with domain verification, certificate installation or other technical issues, users can contact the support team through various communication channels, including phone, email or a dedicated ticket system. Technical support also includes access to an online knowledge base, which contains detailed instructions, guides and answers to frequently asked questions, allowing users to solve problems on their own. Thanks to Certum technical support, users can count on quick and professional help in every situation, which allows for efficient management of website security and minimizing the risk associated with potential threats.