Blog production Worker runbook

Scope and safety boundary

This runbook moves only blog.3031023.xyz from the independent preview Worker to the independent static production Worker 3031023-xyz-blog. It does not change the primary site, the Pages rollback project, DNS records, redirects, forms, n8n, onboarding, CMS, or client-editing boundaries.

The routine workflows deploy static assets only:

relevant main changes deploy 3031023-xyz-blog in production mode;
relevant non-main changes deploy 3031023-xyz-blog-preview in preview mode; and
neither workflow can create, remove, or alter custom domains, DNS, routes, or redirects.

Pre-cutover verification

Record the production Worker version and verify its workers.dev URL.
Confirm the journal home page and all published post pages return 200.
Confirm a nonexistent post returns the static 404.
Confirm production metadata is indexable, robots.txt allows crawling, and the sitemap lists the journal and published posts.
Confirm the preview Worker remains untouched and its current deployment is available as the immediate blog rollback target.

Domain move (requires separate approval)

Remove blog.3031023.xyz from 3031023-xyz-blog-preview; do not delete that Worker or its deployment history.
Attach blog.3031023.xyz to 3031023-xyz-blog as its only custom domain.
Re-run the public verification checks against the hostname.

Rollback

Remove blog.3031023.xyz from 3031023-xyz-blog.
Reattach it to the unchanged 3031023-xyz-blog-preview Worker.
Verify the preview Worker’s known-good deployment at the hostname. The preview build will intentionally return to its no-index behavior.

Production cutover record — 2026-09-02

Source commit: 5c59430 (main). The automatic Deploy blog production Worker workflow (run 140) completed successfully in 21 seconds.
Domain move: blog.3031023.xyz was detached from 3031023-xyz-blog-preview and attached to 3031023-xyz-blog.
External verification: the hostname returns 200, lists the published Markdown journal posts, is indexable, serves its sitemap through robots.txt, and returns a static 404 for an unknown post.
Rollback readiness: 3031023-xyz-blog-preview remains deployed and has no custom domain, ready for a deliberate reattachment if needed.

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