Record every public address
Include protocol, subdomain, trailing-slash, campaign, language, and historic variants.
Branding guide · Public continuity
A domain and a route carry accumulated memory: links, bookmarks, citations, search history, customer habit, and machine references. Retiring an address without a controlled handoff wastes recognition and creates avoidable doubt.
domain · route · redirect · continuity

Treat route changes as a memory migration with named owners and a retained record.
Include protocol, subdomain, trailing-slash, campaign, language, and historic variants.
Separate brand evidence, education, commercial intent, policy, and expired campaign pages.
Do not send every retired page to the homepage when a closer destination exists.
Remove chains, loops, and conflicting canonicals.
Sitemap, internal links, schema, feeds, and indexes should use the current route.
Track legacy traffic, missed routes, ownership dates, and unexpected status changes.
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If a name, color, mark, message, voice, or page is starting to affect sales or trust, get the public-facing decision checked before rollout makes it harder to change.