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Author: Sergiu Rosca

Sergiu Rosca is the core web developer behind SSL Dragon. He manages the technical infrastructure, platform performance, and backend integrations that keep the site running smoothly and securely. At SSL Dragon, Sergiu shares practical insights on web development, site optimization, and technical troubleshooting.

Tutorials reviewed by Sergiu Rosca

SSL Errors: What They Are and How to Fix Them

An SSL error is what a browser shows when it cannot open a trusted encrypted connection to a website. Instead of the page you asked for, you get a warning screen and a short code in small capitals, something like NET::ERR_CERT_AUTHORITY_INVALID or SSL_ERROR_NO_CYPHER_OVERLAP. That code is the useful part, and most guides skip past it. […]

How to Generate a CSR for an SSL Certificate

You can generate a CSR in three places: on the command line with OpenSSL, inside your server’s control panel or admin console (cPanel, IIS, Plesk), or with our online tool if you don’t have server access. Whichever route you take, you fill in the same details about your domain and organization, and you end up with two […]

How to Install an SSL Certificate

Installing an SSL certificate (technically a TLS certificate) means putting your issued certificate files on the server or platform that runs your website, then telling that server to use them. Once it’s done, your site loads over HTTPS with the padlock, and traffic between your visitors and your server is encrypted. The exact steps depend […]