Restore custom-domain TLS edge propagation
Trust can fail at the boundary even when a configuration appears complete.
Fast recovery needs to preserve the controls that make a secure connection meaningful.
“Our deploy is fine, but customers are seeing a browser warning on the checkout domain.”
Akira Fujita · Frontend Platform Engineer
Maintains the production domains and release path for a consumer web application.
What pulls against what
- rapid recovery vs. certificate correctness
- regional mitigation vs. root-cause visibility
- customer urgency vs. validation safeguards
What is at stake
A partial certificate rollout is turning valid renewals into visible browser failures. Recovery must be fast without weakening validation safeguards
Why Vercel
At Vercel, this tends to matter because custom domains are a visible part of production application trust.
Written for
This is the setup. The work is inside.
Running it puts you in the room: the full situation and its constraints, stakeholders who push back in their own words, and the decisions that are yours to make. What you produce becomes a Day One Plan — work you can show someone instead of describing.