@elliott
Use subdomains when:
- You want to separate and organize different sections of your website for better user experience or easier management
- You want to target specific regions or languages with separate content
- You want to host different applications or services on separate subdomains (such as a blog or a shop)
- You want to delegate authority to a subdomain, such as when using a CDN
Avoid subdomains when:
- Your website's main content and branding will suffer from having content spread across multiple subdomains
- Your subdomains may negatively affect your search engine optimization (SEO) efforts, as search engines view subdomains as separate sites with their own authority and ranking
- The cost and complexity of maintaining multiple subdomains outweigh the benefits
Ultimately, the use or avoidance of subdomains should be based on the specific needs and goals of your website and your audience.