#ssl
Articles tagged "ssl".
5 articles
How to Never Get Caught by an Expired SSL Certificate
An expired TLS certificate takes your whole site offline with a scary red warning — and it's 100% preventable. Here's why certificates expire, what it costs, and how to make sure it never catches you.
SSL/TLS Handshake Failed: causes and how to fix it
When the secure connection can't be agreed, you get a handshake failure — and the page never loads. Here's what goes wrong during the TLS handshake, and how to fix each cause.
TLS 1.2 vs 1.3: what changed (and why it matters)
TLS 1.3 made HTTPS both faster and more secure than 1.2 — by doing less, not more. Here's what changed in the handshake, why it matters, and what to make sure your servers support.
HSTS Explained: forcing browsers to always use HTTPS
You redirect HTTP to HTTPS — but that first insecure request is still a risk. HSTS closes that gap by telling browsers to never even try HTTP. Here's how it works and how to deploy it safely.
What is mTLS (Mutual TLS)?
Normal HTTPS proves the server's identity to you. mTLS goes both ways — the client proves itself too. Here's what mutual TLS is, where it's used, and why it's a Zero Trust building block.