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Author: Dionisie Gitlan

I've been writing for SSL Dragon for over 10 years, focusing entirely on SSL certificates and digital security. My job is to take complex cybersecurity topics and strip away the jargon, making sure you get the clear, practical information you need to keep your website safe.

Articles by Dionisie Gitlan

10 SSL Incidents That Prove Certificate Automation Was Inevitable

The cybersecurity crowd loves to pitch certificate automation as some sleek, forward-thinking upgrade for the modern web. But let’s be real: we didn’t get here because everyone suddenly became proactive. We got here because the industry kept messing up. Automation isn’t a reward for good behavior; it’s an intervention. For years,we’ve seen a spectacular parade […]

Why Certificate Automation Still Has Low Adoption

Certificate automation is a solved problem. The tools exist, the CAs support them, and most IT teams understand the risk of going manual. Yet 38% of organizations still manage certificates with spreadsheets, and 70% admit they don’t have the staff to keep up. The gap between what’s available and what’s adopted isn’t a technical story. […]

Why the Post-Quantum Certificate Challenge Is Bigger Than Shorter Validity

The SSL industry already has one countdown on the wall. By 2029, the old annual renewal rhythm will be gone. Certificates will expire faster, automation will be mandatory, and businesses still running on calendar reminders will fall behind. That challenge, at least, is legible. The harder problem is not about time. It’s about visibility. Post-quantum […]

Let’s Encrypt Pauses Certificate Issuance After Internal Error

On May 8, 2026, Let’s Encrypt temporarily stopped issuing certificates after detecting an internal error in its certificate system. Existing certificates remained valid, but new requests and automated renewals were affected during the interruption. Service was later restored after Let’s Encrypt changed the affected issuance path. What Happened Inside Let’s Encrypt? The interruption traced back […]

Why The SSL Market Is No Longer Selling Encryption

If SSL certificates were only about encryption, the paid market should have collapsed by now. Basic HTTPS is everywhere. Free DV certificates protect ordinary websites. Hosting panels turn SSL into a checkbox. Browsers no longer treat encrypted pages as special; they flag unencrypted ones as broken. Yet paid SSL still exists. The market thrives because […]

Best Code Signing Certificate Providers in 2026

Picking a code signing certificate provider is harder than it should be. Four publicly-trusted Certificate Authorities cover almost every legitimate buying scenario: Sectigo, Comodo, DigiCert, and GoGetSSL. At first glance they all look similar. They issue the same X.509 certificates, follow the same CA/Browser Forum rules, and ship hardware tokens that meet the same FIPS […]

From 398 Days to 47: What the New SSL Certificate Lifetimes Mean

SSL certificate validity is changing, and the shift has already started. The industry is moving away from long-lived certificates and toward much shorter lifetimes, forcing a different approach to how you manage SSL/TLS. This is not a minor update. Reduced SSL validity increases the frequency at which you issue certificates, validate domains, and handle renewals. […]

Behind the Tickets: What Really Makes SSL Errors Difficult to Debug

SSL certificates are often treated as a set-and-forget layer of infrastructure. Once installed, browsers stay quiet, and encryption fades into the background. From a support perspective, reality looks very different. Behind routine installations sits a steady flow of tickets where certificates are technically valid, correctly deployed, and still failing in ways that aren’t immediately visible. […]

CRT vs CER File Extensions Explained

You’ve just received your SSL certificate files and notice two extensions: .crt and .cer. Your server expects one, your certificate authority (CA) sent the other. Before you start troubleshooting, here’s the short answer: both file extensions hold the same X.509 certificate data, and the difference is mostly a naming convention. But “mostly” is doing some […]

Why Multi-Certificate Environments Break TLS Mental Models

At SSL Dragon, we work with SSL certificates across a wide range of environments, from simple single-domain sites to modern stacks where TLS is deliberately spread across multiple layers. Over time, that range makes one thing clear: TLS itself is stable, but the way it’s understood hasn’t kept pace with its evolution. Today, HTTPS commonly […]

Tutorials by Dionisie Gitlan

How to Install an SSL Certificate on IBM Cloud

This tutorial explains how to install an SSL certificate on IBM Cloud. IBM Cloud has two infrastructure types, and each handles certificates differently: VPC (Virtual Private Cloud) stores the certificate in Secrets Manager and attaches it to a load balancer, while Classic infrastructure keeps its own SSL certificate store. You will also learn how to […]

How to Install an SSL Certificate on Heroku

This guide shows you how to install an SSL certificate on Heroku. It covers both ways Heroku terminates TLS today: Automated Certificate Management (ACM), which provisions and renews free Let’s Encrypt certificates for you, and manual upload of a third-party certificate via the dashboard or the Heroku CLI.

How to Install an SSL Certificate on Google App Engine

This guide shows you how to install an SSL certificate on Google App Engine, both the modern way (a free Google-managed certificate that App Engine provisions and renews automatically for any custom domain) and the legacy way (uploading your own third-party certificate when you need a specific CA, an EV/OV certificate, or a wildcard). App […]

How to Install an SSL certificate on WHM

In this guide, you will learn how to install an SSL certificate on WHM (Web Host Manager), the server-level control panel that sits above the individual cPanel accounts. The steps are the same whether you log in as the root administrator or with reseller privileges. The final section covers AutoSSL and the server hostname certificate.

How to Install an SSL Certificate on Virtualmin

This guide explains how to install an SSL certificate on Virtualmin, the hosting control panel that runs on top of Webmin. You will paste your signed certificate, private key, and CA bundle, apply the certificate to your other services, and verify the result.

How to Install an SSL Certificate on VestaCP

This guide shows you how to install an SSL certificate on VestaCP, the Linux control panel. It covers two installations: securing a hosted website through the WEB tab, and replacing the certificate that protects the VestaCP admin panel itself on port 8083.

How to Install an SSL Certificate on Sentora

This guide shows you how to install an SSL certificate on Sentora, the open-source web hosting control panel forked from ZPanel. It covers generating the CSR, pasting the certificate, key, and CA bundle into Sentora’s Apache Admin module, and hardening the resulting virtual host with modern TLS settings.

How to Install an SSL Certificate on Plesk

This guide shows you how to install an SSL/TLS certificate on Plesk. Current Plesk releases ship under the Obsidian line (18.x), so the steps and menu labels below follow that interface. The flow has two phases: upload the issued certificate, the CA chain, and the private key into the certificate store, then assign that certificate […]

How to Install an SSL certificate on ISPConfig

In this tutorial, you will learn how to install an SSL certificate on ISPConfig. ISPConfig manages SSL per website: you open the site in the panel, go to its SSL tab, and paste the certificate, private key, and CA bundle into the matching fields. You can also let ISPConfig issue and auto-renew a free Let’s […]