I’ll introduce how implementing 301 redirects for a while after web service termination is good from an SEO perspective.

Implement 301 Redirects Immediately After Service Termination

• Q1) Regarding 301 redirect handling for terminated service sites, is it okay to keep 301 redirects permanently?
• A1) It's better to create a page at a URL like https://newsite.example.com/oldsite with content saying "This service has been terminated" and implement 301 redirects to this URL

• Q2) Does permanently continuing 301 redirects negatively affect the redirect destination domain?
• A2) For redirects, it's OK to do them for 3-6 months and then stop them (either way is fine)

That’s all from the Gemba where SEO is a concern even when terminating web services.