What Is International SEO and Why Does It Matter?
International SEO is the process of optimizing your website so that search engines can identify which countries you want to target and which languages you use for business. Done right, it allows you to rank in multiple countries and languages, dramatically expanding your addressable market.
For Chinese companies entering Western markets — or Western companies targeting Chinese consumers — international SEO is non-negotiable. It’s the difference between being invisible and owning your target market.
The Three Pillars of International SEO
1. Site Structure
How you structure your URLs for international content is one of the most important decisions you’ll make. Your three main options:
Country Code Top-Level Domains (ccTLDs)
- Example: example.de (Germany), example.fr (France)
- Strongest geo-targeting signal
- Separate domains = separate authority, harder to scale
- Best for: Companies with dedicated local teams and resources
Subdirectories (Recommended for most)
- Example: example.com/de/, example.com/zh/
- Consolidates domain authority
- Easier to manage
- Best for: Most mid-size businesses
Subdomains
- Example: de.example.com, zh.example.com
- Treated somewhat like separate domains by Google
- Some technical benefits for caching/CDN
- Best for: Large enterprises with technical requirements
Our recommendation: Use subdirectories. They consolidate your link authority, are easier to manage, and perform well for most businesses.
2. Hreflang Implementation
Hreflang is an HTML attribute that tells search engines which language and region a specific page is intended for. It’s the most technical and most commonly botched element of international SEO.
The correct format:
<link rel="alternate" hreflang="en-us" href="https://example.com/en/" />
<link rel="alternate" hreflang="zh-cn" href="https://example.com/zh/" />
<link rel="alternate" hreflang="x-default" href="https://example.com/" />Common mistakes:
- Missing the x-default tag
- Not implementing hreflang on all language versions (it must be reciprocal)
- Using incorrect language codes
- Not implementing it in XML sitemaps as well
Pro tip: Implement hreflang in both your HTML <head> AND your XML sitemap. This provides redundancy and is especially important for large sites.
3. Localization vs. Translation
This is where most companies cut corners and pay the price. There’s a critical difference:
Translation: Converting text from one language to another Localization: Adapting content for cultural relevance, local search behavior, and market-specific needs
Google can detect machine-translated content. More importantly, even if you rank, non-localized content doesn’t convert.
What localization actually means:
- Keyword research done in the target language (not translated keywords)
- Content written by native speakers who understand the market
- Local examples, references, and case studies
- Region-appropriate pricing, currencies, and formats
- Culturally appropriate images and messaging
For Chinese companies going to the US, this means your content needs to feel American — not like it was translated from Chinese. The humor, the idioms, the references, the way problems are framed — all of this needs to be native.
Keyword Research for International Markets
Do NOT just translate your English keywords into Chinese (or vice versa). Search behavior differs dramatically between markets.
The process:
- Start from scratch in the target language
- Research how locals describe the problem your product solves
- Understand the competitive landscape in that market (different competitors may dominate)
- Check volume and difficulty using tools with local data (Ahrefs, Semrush with country filter)
Example: “AI writing tool” in English maps to several Chinese phrases, but Chinese searchers might more commonly search for “AI写作软件” (AI writing software) or “智能写作工具” (intelligent writing tool). Volume and competition vary significantly.
Technical SEO for International Sites
Crawl Budget Management
Large international sites can waste crawl budget on duplicate content, especially if you have:
- Similar pages across multiple language versions
- Shared URLs between markets
- Thin translated pages
Fix this with proper canonicalization and hreflang.
Server Location and CDN
Where your server is located matters less than it used to, but it still affects page speed for local users. Use a CDN with edge nodes close to your target markets.
For Chinese markets specifically: The Great Firewall creates significant latency for servers hosted outside China. Consider:
- A CDN with Chinese edge nodes
- A separate .cn domain hosted within China (requires ICP license)
- Separate Chinese infrastructure if traffic volumes justify it
Core Web Vitals by Region
Page speed varies dramatically by region due to infrastructure differences. Always test Core Web Vitals from within your target country — not just from your home market.
Use tools like:
- PageSpeed Insights (select the region)
- Chrome User Experience Report (CrUX data by country)
- WebPageTest (select test location)
Content Strategy for International SEO
Build Local Content, Not Translated Content
Your best-performing international content will be content created specifically for that market — not translations of existing content.
For Chinese brands in the US market:
- Create content that speaks to US customer problems and use cases
- Build case studies with US customers (or use anonymized examples)
- Reference US industry standards, regulations, and context
- Interview US customers or industry experts
Link Building in Local Markets
Links from local websites are the strongest ranking signal in local markets. Build relationships with:
- Local industry publications
- Local bloggers and influencers
- Local business associations
- Local news sites (through PR)
A link from a major Chinese technology publication helps for Chinese searches. A link from TechCrunch or Forbes helps for US searches.
Measuring International SEO Success
Set up proper tracking by market:
- Google Analytics: Create segments by language/country
- Google Search Console: Add and verify each country’s version separately
- Rank tracking: Use a tool that allows country-specific rank tracking (Ahrefs, Semrush)
Key metrics by market:
- Organic sessions from target country
- Rankings for target keywords in target country
- Organic leads/conversions from target country
- Revenue attributed to organic in target country
Common International SEO Mistakes to Avoid
- Launching without hreflang: You’ll cannibalize your own rankings across markets
- Thin translation: Machine-translated content is worse than no content
- Ignoring local technical SEO: Slow pages in the target country kill rankings
- Not building local links: Global link building doesn’t fully transfer to local markets
- Treating all Asian markets the same: Japanese, Korean, and Chinese search behavior is entirely different
The Bottom Line
International SEO is a high-investment, high-reward channel. Done properly, it can dramatically expand your addressable market and build sustainable competitive moats in multiple geographies.
The key is treating each market as distinct — with its own keyword research, content strategy, link building, and technical requirements — while leveraging the authority and infrastructure advantages of a centralized domain structure.
Ready to expand your search presence globally? Get in touch with our team.