How to Setup Your Google Workspace Domain, Add New Domain & do Set Up 2026 Easily

Sign in at admin.google.com with an account that has admin permissions, and you land on the Home dashboard. This page surfaces the things admins reach for most: a Groups panel for managing organization groups, a Support panel with frequently asked questions like "How to add secondary domain" and "How to create or update users in bulk," and a Discover panel pointing at other productivity tips.

The left sidebar holds the main navigation: Directory, Devices, Apps, Security, Data, Reporting, Billing, and Account. Domain settings live under Account, not under Directory or Apps, which is easy to miss the first time.

From Account settings, choose Domains, then Manage domains, and click Add a domain. Google's own documentation lists this same path: Account > Domains > Manage domains > Add a domain.

The screen that opens explains the purpose plainly: "If your organisation owns multiple domains, add them all to your organisation's Google Account. Let users at different domains share Google services as one organisation, or give them an identity at multiple domains." Step 1 on this screen is a Domain name field with placeholder guidance: company.com for a full domain, or mail.mycompany.com for a subdomain. Type the exact domain you registered with your provider, matching capitalization and spelling precisely.

Step 2 on the same screen is the decision that matters most. Secondary domain treats the new domain as its own space: it can replace your primary domain in a user's address, and the screen's own example shows admin@pmntechfix.nl (primary) alongside joe@other-domain.com (secondary), separate identities for separate people or teams.

User alias domain instead gives existing users an additional email address at the new domain, shown as admin@pmntechfix.nl paired with admin@other-domain.com: the same person, reachable at two addresses, and the Admin console itself labels this option "at no extra cost." That phrase only tells half the story. A secondary domain isn't free once you use it: every person you add under it needs a licensed Workspace user account, the same as any other user, except on Education and Nonprofit editions. Pick secondary domain if you're managing genuinely separate teams or brands and are prepared to license users on it; pick user alias domain if you just want existing people reachable at a second address at no added cost.

After choosing a domain type and continuing, Google requires proof you control the domain: typically a DNS TXT record added at your domain registrar, or in some flows an HTML file uploaded to the domain's web root. This step exists to stop someone from adding a domain they don't own to their Workspace account, so it can't be skipped regardless of which domain type you picked in the previous step.

Once the verification record is in place, return to the Admin console and confirm verification. This can succeed within minutes or take up to 48 hours depending on how quickly your registrar's DNS changes propagate. If verification fails immediately after adding the record, that's usually propagation lag rather than a mistake in the record itself, so it's worth retrying after a longer wait before assuming something is wrong.

With the domain added and verified, it appears in your Domains list alongside your primary domain, and any users or aliases you set up on it become active. Check MX records separately if you plan to route email through this domain: domain verification and email routing are two different steps, and a verified domain doesn't mean mail is flowing until the MX records point at Google's mail servers too.