Subdomain redirects are common when consolidating sites or moving to HTTPS. A correct 301 redirect preserves SEO and avoids loops.
Pick the right redirect type
Use 301 (permanent) for migrations; use 302 only for short-term tests.
- 301 preserves signals better
- Avoid chains
- Keep rules simple
Recommended approach: .htaccess
On Apache-based hosting, .htaccess is the most portable redirect layer.
- Redirect http → https first
- Then redirect hostnames
- Test with a few URLs before deploying widely
Avoid common redirect mistakes
Most redirect failures are caused by loops, mixed hostnames, or wildcard misuse.
- Prevent loops by matching current host
- Use consistent canonical domain
- Log and verify after changes
Need help planning redirects for a migration between regions (Hong Kong hosting vs US/EU)? iServerGo can help validate redirect rules and cut downtime risk.
Sam, Solutions Architect is a hosting infrastructure specialist with years of experience managing mission-critical workloads. This article reflects real-world expertise in SEO and is regularly updated to ensure accuracy.
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