SSL Certificate Buying Guide: DV / OV / EV Certificate Differences
SSL certificates come in DV, OV, and EV levels. This article explains their differences and helps you choose the right one.
Let's Encrypt Free SSL Certificate Tutorial: Certbot Automated Setup
Let's Encrypt provides free DV SSL certificates with auto-renewal. This tutorial covers complete Certbot setup for Nginx and Apache.
Website HTTPS Migration Guide: From Certificate to Full Site Migration
Migrating from HTTP to HTTPS involves certificate application, configuration, and content fixes. This guide provides a complete migration process.
Why Your Website Needs HTTPS: Encryption Basics and the TLS Handshake
Why is HTTPS safer than HTTP? This guide uses a mailbox analogy to explain symmetric vs asymmetric encryption, a simplified TLS handshake, what certificates do, and how to enable HTTPS with a free certificate.
Nginx Reverse Proxy in Production: Upstream, Caching and Rate Limiting
Use upstream for load balancing, proxy_cache for caching and limit_req for rate limiting, and terminate TLS at the reverse proxy layer. Includes deployable Nginx production configs.
Data Encryption in Practice: Disk, Database, and Transport
A layered look at data encryption - LUKS disk encryption, database encryption at rest, and TLS in transit - plus key management and backup essentials for a complete protection chain.
Let's Encrypt's Post-Quantum Future: Merkle Tree Certificates
Let's Encrypt announces Merkle Tree Certificates (MTC) as its path to a post-quantum Web PKI, targeting a staging environment in late 2026 and production in 2027 while keeping handshakes fast.