TLS/SSL Certificates

TLS certificates are key for securing internet communication. They encrypt data flowing between a web server and a browser, preventing eavesdropping and data manipulation.

They are also used for authentication of web servers. OV and EV certificates allow verification that you are communicating with a legitimate server, not a fake copy. Information provided in the certificate can be verified through the web browser interface. Digital certificates are a necessity for internet communication.

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Why use TLS/SSL?

Encrypted Communication

Encrypted communication protects against eavesdropping on communicating parties. Data is protected during transmission by strong encryption and the TLS protocol.

Data Integrity

Encrypted data cannot be read (eavesdropped) and also cannot be altered. It can only be read by the communicating parties. Data transmitted via the TLS protocol arrives unchanged.

Authentication

Parties can authenticate each other thanks to the information provided in the certificate. OV and EV certificates are an effective protection against phishing unlike anonymous DV certificates.

A TLS/SSL certificate on the server protects data from unwanted eavesdropping and proves that the server actually belongs to the given operator. Today, it is essential for every website or application, not just those processing sensitive information. Browsers prefer the encrypted HTTPS protocol and don't want to allow access to sites without it.
Digital certificates also have other advantages. A verified OV or EV certificate will bring you customer trust and improved reputation. A TLS certificate is also important for SEO. With each certificate, you will receive a certification authority seal, which you can place on your website to show visitors it is secure.
Using a TLS certificate on your website also benefits its performance and speed. It allows the use of lightning-fast HTTP/2 and HTTP/3 protocols, which are only used in encrypted form.

Why SSLmarket?

20 Years of Experience

No one understands digital certificates and application signing like we do. We will help you obtain your first TLS certificate or automate their life cycle within the company. Entrust yourself to our experts.

Number 1 in Europe

We are the largest seller of digital certificates in Europe. We have the highest form of partnership with CA DigiCert and we are holders of many awards. You won't find a more qualified partner for data security.

Leader in Innovation

We bring you the latest products and innovations from the world's largest certification authority - CA DigiCert. Make no compromises and choose the best available. We are already prepared for PQC.

The company ZONER (operator of sslmarket.com) has been offering TLS/SSL certificates since 2005. We offer our customers professional support in the Czech language, and our team of specialists will solve any problem. Securing your server is simple thanks to us, and anyone can handle it.

In our offer, you will find only fully trustworthy and well-established certification authorities Secure Site, Thawte, GeoTrust, and RapidSSL for the Czech Republic.

A confirmation of our well-done work is the receipt of several significant awards. The most valuable achievement is the Partner of the Year 2019 award, which DigiCert grants to the best partner among all. A complete overview of our successes can be found on the Successes and Awards of SSLmarket page.

24/7 support
technical support in case of problems
team of experts will solve any problem
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30-day money-back guarantee
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FREE certificate reissue
we will help you automate certificates
the largest selection of TLS/SSL certificates
we only offer trustworthy TLS/SSL certificates

FAQ

SSL Protocol (Secure Sockets Layer)

The SSL protocol secures communication between the server and the visitor through encryption. When using this protocol, all communication is encrypted and cannot be eavesdropped. Use of the SSL protocol and encryption can be recognized through HTTPS, which is in the address bar or link.

SSL Handshake

When establishing a connection between the browser and the server via the HTTPS protocol, it is necessary to agree on communication terms, especially the encryption depth. This "introductory" process is referred to as the SSL handshake. During it, the visitor is sent an SSL certificate and the encryption depth of the communication is determined.

What is the difference between SSL and TLS?

SSL (Secure Sockets Layer) is an older protocol for securing internet communication, while TLS (Transport Layer Security) is its more modern and secure successor. SSL has several known vulnerabilities and is no longer used today, while TLS is continuously updated (the current version is TLS 1.3). TLS offers better security, modern encryption algorithms, and advanced features like forward secrecy. Most current secure connections use the TLS protocol, although it is sometimes still incorrectly referred to as SSL in common speech.