What international SEO is and when you need it
International SEO is the process of optimizing a website so that search engines understand which countries and languages you target, and users in those markets can find you. It is not about machine translation or a multilingual plugin added in a hurry. It is a technical and editorial strategy involving architecture decisions, URL structure, localization signals and content produced separately for each market.
You need international SEO if: you sell products or services outside Romania, you want to attract clients from Germany, France, the UK or the US, or you already have organic traffic from other countries that you are not converting. An online store from Timișoara that ships to Austria and Germany, for example, needs separate pages optimized for the German spoken in Austria versus Germany, not the same page translated with Google Translate.
The signals Google uses for internationalization
Google determines a site's geographic relevance through several factors: URL structure (ccTLD, subdomain or subfolder), the hreflang attribute, server location, links received from sites in the target country, the currency and address shown on the site, and the actual content written for that audience. No single factor is enough, the combination is what matters.
URL structure: ccTLD, subdomain or subfolder
The first strategic decision in international SEO is how you structure the URLs for each market. There are three main options, each with real advantages and costs.
ccTLD (country-code top-level domains)
Examples: site.de for Germany, site.fr for France, site.ro for Romania. The main advantage is that Google automatically associates the domain with that country, and users trust a local domain more. The major drawback: each domain builds authority separately. If you already have authority on site.com, it does not transfer to site.de. You have to build new link profiles from scratch for each domain. It is the right solution for companies with consistent budgets, at least 2,000-5,000 EUR/month per market for link building and content production.
Subdomains
Examples: de.site.com, fr.site.com. Google treats subdomains as separate entities, which means that, like ccTLDs, the main domain's authority does not distribute automatically. Subdomains are rarely the optimal solution for international SEO and are used more for technical or infrastructure reasons.
Subfolders (subdirectories)
Examples: site.com/de/, site.com/fr/. This is the recommended solution for most projects, especially for companies without ccTLD budgets per market. The main domain's authority distributes to all subfolders, links earned on site.com also help the /de/ and /fr/ versions. The drawback is that the geographic signal is weaker than a ccTLD. This is offset with correctly implemented hreflang and localized content.
For a manufacturer selling in Germany and Austria, the subfolder structure site.com/de/ and site.com/at/ works if you put different content in each market, even though the language is the same: prices, delivery times and local contact details. The gain is that you do not buy a new domain for every market.
Implementing hreflang correctly
Hreflang is the HTML attribute that tells Google which version of a page to show for which language and region. It is probably the most frequently mis-implemented technical element in international SEO.
The correct syntax
The hreflang attribute is added in the head section of each page or in the XML sitemap. The standard format is: hreflang="ro" for Romanian without a region, or hreflang="ro-RO" for Romanian from Romania, hreflang="de-DE" for German from Germany, hreflang="de-AT" for German from Austria. Each page must reference itself and include all the other versions. If the Romanian page does not contain the reference to the German version, the implementation is incomplete.
Common mistakes that break hreflang
- One-way references: the RO page mentions the DE page, but the DE page does not mention the RO page. Google ignores hreflang that is not reciprocal.
- URLs with redirects: hreflang must point to the final URL, not one that redirects.
- Noindexed pages in hreflang: if you include a page with a noindex meta in hreflang, Google may ignore the entire set.
- Incorrect language codes: hreflang="ro-ro" (lowercase) is not accepted, the correct form is hreflang="ro-RO".
You verify the hreflang implementation with Google Search Console (the internationalization report), Screaming Frog or Ahrefs Site Audit. We recommend auditing hreflang every 3 months, especially if the site is under active development.
Keyword research per market, not per language
One of the most costly mistakes in international SEO is to translate your Romanian keyword list into other languages and assume the volumes and intents are identical. They are not.
Why keyword research must be redone for each market
A concrete example: for a client in B2B software, the main keyword in Romania was "inventory management software"
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