# IPv6 event-site diagnostic card

Exact event URL and test time: __________  Incident owner: __________
Visitor symptom, network and location (coarse): __________
Known IPv6-capable test network? [ ] yes [ ] no  Evidence: __________
Authoritative A answer: __________  Authoritative AAAA answer: __________
Is public DNS direct, CDN-proxied or load-balanced? __________

| Layer | IPv4 result | IPv6 result | Evidence/owner |
|---|---|---|---|
| DNS answer | | | |
| Visitor-to-edge or direct TCP | | | |
| Edge-to-origin if applicable | | | |
| TLS certificate and hostname | | | |
| HTTP status/redirect | | | |
| Event page and ticket handoff | | | |

Confirmed failing layer: __________  Proposed scoped change and approver: __________
Previous value/config saved: __________  Observation window: __________
Post-change checks from two IPv6 networks and an IPv4 network: __________
Remaining issue and next owner/time: __________