Skip to main content

Module 3 — Configure and verify custom domains and DNS

Course: GHP-DOM-101 · Estimated study time: 45–60 minutes · Module 3 of 7

Configure and verify custom domains and DNS: a five-step labeled conceptual process diagram, with a visible illustration disclaimer.
Skunkworks Academy visual learning aid. Conceptual diagram — not a screenshot of a live system. Confirm actual interface labels against current vendor documentation.
Illustrative mock interface: a schematic DNS provider record editor displaying name and target fields; example only, not a real screenshot.
Illustrative mock interface, not a live GitHub or DNS-provider screenshot. Exact menu names may differ; validate in the official vendor documentation.

Measurable learning outcomes​

By the end of this module, the learner should be able to:

  • Explain the difference between an apex and subdomain DNS configuration.
  • Map a training subdomain CNAME to the organization github.io host without a repository suffix.
  • Verify organization domain ownership and record DNS resolution evidence.

Practical deliverable: Plan a nonproduction subdomain change. Record the old zone state, TTL, GitHub Pages custom-domain association, authoritative nameservers and before/after resolver outputs. If DNS permissions are unavailable, use documented simulation values and label the result as simulated.

Protected learning content

GitHub Pages Setup

Confirming your learner account and course enrolment.

Last updated on by Raydo M