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The language hangs off your domain, a new brand doesn't
That you decide whether the new addition shares your domain or needs its own by checking whether it has its own brand name, not whether it's a different language.
By Yodai · Published on September 6, 2026 · Updated on October 12, 2026
People email you in Spanish every week asking to book an appointment, and you've already thought about adding a Spanish version of your site too. Or the other way around: the bakery's doing well and you want to launch a wedding catering menu, with a different name, a different price, and a different customer. Either way, you're asking yourself the same question: do you put it on yourdomain.com, the one you already have, or buy a new one?
The answer doesn't depend on whether it's a language or a brand. It depends on just one thing: whether the new thing has its own name.
The name is what decides
If what changes is the language, the business is still the same one. Same bakery, same oven, same phone number. The tourist who finds it in English is the same customer as the neighbor who finds it in Spanish. There's nothing to split apart. The English version hangs off the domain you already have, with a subdomain like en.yourdomain.com or a folder like yourdomain.com/en. That's what Google's guide for multilingual sites recommends: a different address for each language, instead of switching it with cookies or based on browser settings. It also asks you to mark each version with hreflang annotations, so people see the right one in search results. Those are exactly two of the address structures Google suggests: the subdomain and the folder. And it's still the same company, the same Google Business Profile, and the same reviews: Google's Business Profile guidelines ask you not to create more than one profile per business location, whether on one account or several.
If what you're opening has its own name, though, there's no translation involved: it's a different business living inside the same location or the same company, but presenting itself only under its own name. That name is what people will type into the search bar, put on the business card, and paint on the door. And a name people type directly needs a domain with that same name. It doesn't work to hang it off another brand's subdomain: that would be like a wedding catering menu printed on the letterhead of the bakery next door. Google's own guidelines treat it this way: if two brands share one location, you don't combine both names into one profile, and if they operate independently, each one can have its own.
When you should actually buy a domain
Buying a domain isn't just paying for registration and renewals. Depending on the domain extension, it can be cheaper to register through a registrar than directly through the official registry, as one registry's FAQ explains. It also means rebuilding your email setup from scratch: Gmail's sender guidelines require setting up authentication on each of your sending domains, at minimum with SPF or DKIM, and warn that anything unauthenticated can end up in spam or get rejected. And it means registering the domain again with every service that requires it: Stripe, for instance, requires in its documentation that you register every domain and subdomain where its embedded payment form shows methods like Apple Pay or Google Pay. It's worth it when the brand is going to last for years, not to test out a catalog for one quarter.
And it's worth it, above all, because you might sell that business separately someday. If the wedding catering business takes off and you decide to sell it, a domain of its own transfers cleanly: for a .es domain, that's the change of ownership or transfer process, which either the owner or their registrar can request, as that same FAQ explains, and the bakery isn't affected at all. If it lived under yourdomain.com as sisterbrand.yourdomain.com, splitting it off would be a full-blown site move: changing every address, notifying customers, and redirecting every old page, still on the bakery's domain, to the new one. Google, in its guide on moving a site, asks you to keep those redirects in place for at least a year, typically. And it warns that rankings can fluctuate during the move: on a medium-sized site, it can take several weeks or more for the new addresses to show up in place of the old ones.
With this rule, you won't hesitate every time a new market comes up: if it has its own name, it gets its own domain; if it's the same business in another language, it goes on what you already have. All that's left is writing that rule down, so you don't have to repeat it every time someone asks.
- Same business, different language: a subdomain or folder on the domain you already have, no purchase needed.
- Its own name, a different customer: its own domain, even if the company behind it is the same.
- A domain of your own means setting up and verifying email and payments all over again, from scratch.
- A simple line on the website, something like 'is a brand of...', is enough for the two to coexist without confusing anyone.
Test yourself
Answer before opening each one. If one gives you trouble, go back to the section that explains it.
1. Your clothing store gets German tourists every summer, and you want a German version of the site, with the same products and the same prices.
It hangs off a subdomain like de.yourdomain.com. It's the same store and the same customer, only the language changes; a country domain like a .de is expensive, requires more infrastructure, and, according to Google, only lets you target the site to users in one country; plus, it duplicates your email and verifications.
2. You run an English language school and want to launch civil service exam prep courses under a different name, a different price, and a different audience, planning to sell them as a separate business in two years.
You buy it its own domain. It has a different name, a different customer, and most importantly, you're planning to spin it off someday: a subdomain doesn't transfer cleanly, a domain does.
3. A former employee of yours wants to open under your brand in another city, paying for their own space and their own expenses.
Their own domain, in their name, not a subdomain of yours. It's a business owned by someone else; if it ever closes or breaks the agreement, you don't want its site sharing an address with yours.
A domain of its own for the sister brand, a folder for the language, subdomains for the store and for checkout: that's already four different decisions written into the same DNS, and by the fifth one, you won't remember which was which without looking at the full map.
Sources
- Managing multi-regional and multilingual sites. Google Search Central, updated December 18, 2025.
- Guidelines for representing your business on Google. Google Business Profile Help (Google), accessed October 2026.
- FAQs. Dominios.es (Red.es), accessed October 2026.
- Email sender guidelines. Gmail Help (Google), accessed October 2026.
- Register domains for payment methods. Stripe Documentation, accessed October 2026.
- Site moves and migrations. Google Search Central, updated September 11, 2026.
In Yodai you connect the domain you already have to your site, and it stays registered where it is, in your name. See how your own domain for your website works.
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