International SEO – Succeeding in cross-border commerce

Zuletzt aktualisiert am: 9. December 2025

Digital transformation, increasing online affinity, the global interconnectedness of politics, economy, culture, communication, and environment, as well as the boom in e-commerce, are encouraging more and more companies to think beyond national and even continental borders. But for anyone who wants to actively compete in and shape cross-border commerce, international SEO as a sub-discipline of a successful expansion strategy is virtually indispensable.

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Search behavior on the World Wide Web is highly localized—despite globalization. Moreover, every language fundamentally shapes the way people think. International search engine optimization therefore goes far beyond simply translating content.

Companies with expansion potential—for example, Breitling, for whom we managed over 130 different language and country combinations—must adapt their content individually to the specific market conditions of the target country, understand audiences and their needs, and incorporate cultural as well as idiomatic nuances.

Our listicle on international SEO serves both as guidance and as a first basic roadmap for search engine strategy and internationalization.

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Domain concept and strategy: ccTLDs, subdomains, or directories

In principle, there are three international domain concepts to choose from, which can also be combined with each other. The best known are ccTLDs (country code top-level domains). Country domains (for example, weventure.de, weventure.ch, etc.) are the most common and convey trust, transparency, familiarity, and credibility to site visitors, since many users prefer their local ccTLD. In some countries, such as Switzerland, this preference is even more culturally ingrained.

Subdomains, or third-level domains, are placed hierarchically below the main domain. While they do benefit to some extent from the authority of the main domain, each subdomain has to build its own backlinks and trust separately. In general, we advise against this solution, as the other two options promise better organic visibility.

Directories (e.g., weventure.de/ch) primarily benefit from the strength of the main domain. The main site often already has a solid backlink profile and strong E-E-A-T (Experience, Expertise, Authority, Trust) signals, which can continue to be consolidated under one domain.

However, unlike ccTLDs, subfolders may represent a potential trust gap, as mentioned earlier. They are also tied to the structure of the main site and may not be suitable for every target country.

Hreflang attributes against duplicate content

When content exists in different language versions across multiple URLs, the “hreflang” link attribute prevents Google from categorizing identical content as duplicate content and instead signals the country-specific version of the site. With the hreflang meta tag, Google can map the geographic targeting of a website, identify both international and local pages, and serve the section of the site intended for each target country accordingly.

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Think Local: Search behavior, keywords, URLs & metadata

In international SEO, the target audience factor is a key element within conversion rate optimization (CRO). What does the customer want? What does the customer need? And most importantly: how does the customer search? Search behavior for products or services is highly country-specific and can vary greatly. Geo-relevant interests (for example, winter boots are searched for far less in warmer regions) and differing consumption habits should logically be considered when prioritizing keywords.

A tailored keyword strategy is especially important for multilingual websites (such as German, French, and Italian in Switzerland) or multilingual projects. But even with seemingly identical languages that address different markets—such as in the DACH region or between the UK and the US—separate keyword nuances should be developed. Vocabulary (and sometimes grammar), spelling, and word meanings can differ significantly. The rule of thumb must therefore be: think local.

The keyword strategy must align precisely with the correct local language use. For example, Swiss High German doesn’t use “ß” but only “ss.” What Germans call Fahrrad (bicycle) is known as Velo in Switzerland. What Americans refer to as “pants” (trousers), the British understand as “underwear.” In the UK, regular pants are called “trousers,” not “pants.”

It also makes sense to research the market share and local relevance of different search engines in each country and market. While Google dominates globally, local search engines—especially in China or Russia, but not exclusively—can offer serious competition to Google and others.

Country-relevant content for international SEO

What separates good content from excellent content? The latter goes far beyond grammatically correct translations. Truly outstanding content must always be guided by the target country and its standards. For example, measurement and currency units, climate zones, cultural and idiomatic nuances, regional specialties and customs, local peculiarities, stylistic devices, legal and economic frameworks, as well as social specifics must be taken into account and adapted. Ideally, translations can even be replaced or enriched with local examples or national traditions. Internationally well-executed content communicates messages effectively, creates empathy, builds emotional connections, and contributes to a positive brand image.

User Experience & Design

Different countries—many chances to get it wrong. A market newcomer can easily make embarrassing mistakes. What convinces users in a German UX study may not be relevant at all for audiences in Asia—or even in neighboring countries like Austria, Switzerland, France, or the Netherlands.

Expectations for design and UX/UI differ greatly from country to country and follow their own “learned” rules. For example, simply switching from left-to-right to right-to-left scripts in cross-cultural communication can cause significant navigation problems. Likewise, the cultural association of colors or design varies widely and should be researched thoroughly for each target market. Website design must always be aligned with the cultural standards of the target country and its natives—because they are not just a potential audience, but the actual audience.

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Conclusion – International SEO

A successful strategy for international campaigns requires more than market studies, process optimization, and professional translation of all (yes, all) content—it also depends on a well-thought-out international SEO concept. Content-driven communication is particularly effective in cross-border e-commerce: it’s a “cost-efficient” yet highly impactful strategy for attracting new customers and nurturing customer loyalty.

However, international SEO goes well beyond basic “schoolbook SEO.” In most cases, it requires the competent support of specialized agencies and experienced experts—such as WEVENTURE Performance GmbH, a dedicated SEO agency based in the heart of Berlin.

FAQ zu international SEO

Was ist internationale SEO?

Internationale SEO umfasst alle Maßnahmen, mit denen Websites für verschiedene Länder und Sprachen optimiert werden. Ziel ist es, in jedem Zielland in der lokalen Suche sichtbar zu sein – mit passenden Inhalten, Domains, Sprachen und kulturellen Anpassungen.

Author

Picture of Corinna Vorreiter

Corinna Vorreiter

Corinna is Head of Organic at WEVENTURE and has been active in SEO since 2017. She shares her knowledge at conferences such as SEO Campixx and the International Search Summit, focusing on international SEO and global visibility.

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