Domains & SEO · 6 min read

Custom domain publishing: DNS, HTTPS, and canonical URLs explained

Understand what changes when you connect your own domain to a publishing platform, from DNS records to SSL and search visibility.

Pubbblish Editorial · November 13, 2026 · Educational resource

Why a custom domain matters

A custom domain gives your publication a consistent address independent of social profiles. It is useful for memorability and branding, though the domain alone does not guarantee improved search rankings.

Understand apex domains and subdomains

An apex domain looks like example.com. A subdomain looks like news.example.com. Depending on your DNS host and publishing provider, you may configure A, ALIAS, ANAME, or CNAME records. Always use the exact records your publishing platform provides.

DNS changes can take time to propagate. During setup, you should also confirm ownership verification and whether HTTPS certificates have been issued.

Choose one canonical home

Pick either the www or apex version as the main address and redirect the other. Ensure article canonical tags, XML sitemaps, and internal links use the same canonical hostname to reduce duplicate-URL confusion.

  • Verify domain control
  • Configure the required DNS records
  • Confirm HTTPS is active
  • Set the canonical hostname and redirects
  • Test article and sitemap URLs on the live domain

Plan migrations carefully

If your publication already lives on another domain or subdomain, preserve your URL structure where practical and create permanent redirects from old pages to their most relevant new equivalents. Search performance can fluctuate during a move.

Verify the site in Google Search Console, submit your sitemap, and monitor indexing and crawl errors after launch.

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