Website, Hosting & No-Code Tools
CDN & Performance
7 articles
What Is TTFB? Time to First Byte Explained, With Fixes
Time to First Byte tells you how long a visitor waits before your server sends anything at all. Google calls 0.8 seconds or less good. Here is what makes it slow and what fixes it.
How to Get a Free SSL Certificate With Let's Encrypt
Let's Encrypt certificates cost nothing and last 90 days. With Certbot you can install one in about ten minutes and never renew it by hand. Here are the exact commands.
What Is a CDN and Does a Small Website Need One?
A CDN keeps copies of your files in cities around the world so visitors download them from nearby. For most small sites the free tiers are enough. Here is how it works and what to cache.
Core Web Vitals Explained: LCP, INP and CLS in Plain English
Google judges page experience on three numbers: how fast the main content loads, how quickly the page responds, and how much the layout jumps. Here are the targets and how to hit them.
HTTP Security Headers Explained: 6 to Add to Your Website
Six short headers block whole categories of attack, from HTTPS downgrades to clickjacking. Here is what each does, a safe starting value, and how to add them without breaking your site.
HTTP/2 vs HTTP/3: What Changed and How to Enable It
HTTP/3 runs on QUIC over UDP, which removes a stall that HTTP/2 suffers on lossy networks and usually needs fewer round trips to connect. Here is what that means for your site and how to switch it on.
Why Is My WordPress Site Slow? 12 Fixes in Order
Slow WordPress sites usually share the same four causes: no page cache, oversized images, too many plugins and an old PHP version. Work through these twelve fixes in order.