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Domain, Hosting, SSL & DNS: 4 Foundations Before You Build a Website

Plain-language guide to domain, hosting, SSL and DNS — core concepts every business owner should know before launching a website.

· 2 min read

Table of contents▼
  1. Domain — your web address
  2. Hosting — where files live
  3. SSL — HTTPS is mandatory
  4. DNS — maps name to server
  5. Go-live checklist

Before design or SEO, understand four building blocks that make your site live on the Internet: domain, hosting, SSL, and DNS.

Domain — your web address

Your domain is what people type in the browser (e.g. techpartner.vn). Register early, keep ownership under your company, and choose .vn for Vietnam-first brands or .com for international reach.

Hosting — where files live

Hosting stores HTML, images, code, and databases. Options:

Type Best for
Shared Small brochure sites
VPS More control, moderate traffic
Cloud (Vercel, AWS…) Modern stacks, Next.js, SaaS

See also VPS vs cloud hosting.

SSL — HTTPS is mandatory

SSL encrypts traffic and shows the padlock. Google favors HTTPS; customers trust forms and checkout more. Free Let’s Encrypt is enough for most SMB sites.

DNS — maps name to server

DNS records (A, CNAME) point your domain to hosting. When migrating hosts, update DNS at your registrar and wait for propagation (minutes to 48h). Cloudflare is a popular free DNS + CDN layer.

Go-live checklist

  • Domain owned by your business
  • Stable hosting with backups
  • SSL active, HTTP → HTTPS redirect
  • Optional: email @yourdomain

Next: Essential business website structure. Browse industry templates at TechPartner.

Contact — 0963 238 959 · hello@techpartner.vn

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