Domains, DNS & HTTPS
The S in HTTPS stands for “sleep well at night”.
▶ the lesson · ~35s · narrated · tap for sound
the intro
DNS is the internet’s phone book: your domain name maps to server addresses through records. HTTPS secures the connection with certificates — free and automatic thanks to Let’s Encrypt. Together they make your app findable and trustworthy.
fun fact ✦
DNS changes can take up to 48 hours to propagate — the internet’s phone book updates slowly.
the docs
quick hits about Domains, DNS & HTTPS
15-second answers · interviews, tips, trivia & hidden gems
🎤 interview
What is DNS?
📚 tutorial
A, CNAME, MX in one table
🔧 useful
www or not www?
💎 deep
Free certificates, auto-renewing
💎 deep
Make browsers remember HTTPS
🧠 trivia
What does the S stand for?