SEO Best Practices with Cloudflare Workers, Part 1: Subdomain vs. Subdirectory

Michael Pinter
6 min readintermediate
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Overview

This article explores the SEO implications of using subdomains versus subdirectories for web content. It discusses the technical setup for both strategies and their impact on search engine optimization, emphasizing that while both can be effective, subdirectories may offer better authority for root domains.

What You'll Learn

1

How to set up subdomains and subdirectories for your blog

2

Why subdirectories may improve your site's SEO performance

3

When to use subdomains for international SEO strategies

Key Questions Answered

What are the SEO implications of using subdomains versus subdirectories?
Subdomains and subdirectories are treated equally by search engines like Google, meaning they have the same potential for ranking. However, subdomains can dilute keywords and backlinks, making subdirectories a better choice for consolidating authority on a root domain.
How do you set up subdomains and subdirectories?
Setting up subdirectories is straightforward as they are treated like folders on a web server. In contrast, subdomains require DNS configuration, often needing a CNAME record to connect to the hosted service, making them easier to set up for remote hosting.
When should you use subdomains instead of subdirectories?
Subdomains are beneficial for businesses targeting international markets or when product stratification is needed. For example, a company might use a subdomain for a German version of their site to build distinct keywords for that market.

Technologies & Tools

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Backend
Nginx
Used as a reverse proxy to connect a domain to a remotely hosted blog.
Backend
Cloudflare Workers
Mentioned as a tool for converting subdomains to subdirectories.

Key Actionable Insights

1
Consider using subdirectories for your blog to enhance your root domain's authority.
By consolidating your content under a single domain, you can improve your site's SEO performance and increase engagement, as all keywords and backlinks will contribute to the same authority.
2
If you're targeting multiple languages or regions, subdomains can be a strategic choice.
Using subdomains allows you to create distinct keyword sets for different markets, which can help in optimizing for local search results.
3
Evaluate your hosting setup to determine the best strategy for your blog.
If your blog is hosted remotely, subdomains may be easier to manage, as they typically require less configuration compared to subdirectories.

Common Pitfalls

1
Using subdomains can lead to keyword and backlink dilution, which may negatively impact SEO.
Each subdomain is treated as a separate entity by search engines, meaning that the authority and keywords are not shared with the root domain, potentially lowering overall search rankings.