Cloudflare Origin Error 1016 on Custom Domain | Supabase Knowledge Base

https://kb-git-refactor-fe-3106-catch-all-routes-supaba…

WACZ

Group6e6d999b-86d5-4e2b-9049-26a87f7e650asubmitted urlMember 1

Case summary

The target, observed result, and important findings.

Status
Current evaluation
Findings: 2Low
Kit source work: Loading related source work…
Discover or upload kit source
Submitted URL: https://kb-git-refactor-fe-3106-catch-all-routes-supabase.vercel.app/kb/troubleshooting/cloudflare-origin-error-1016-on-custom-domain-a57af4 Search for this value.
Domain registration: vercel.appMore than 90 days oldRegistered 2020-01-28 · Registrar Tucows Domains Inc
Language: Detecting...
Network: 59 requests across 5 hosts
Cookies: 9 observed
Favicon: 2c36c305…a4c97894 Search for this value.
Infrastructure: Loading...
Behavior: 1 recorded events
Interaction: 0 actions · 0 submissions · stopped: no fillable controls · download stage: no payload control

The summary page has no captured screenshot.

Analysis metadata

How and when the analysis ran.

Input kind: url
Execution kind: capture
Duration: 29.0s
Navigation: 1 navigation
Engine version: 0.4.1
Created: 2026-11-11 13:24:25Z

Started: 2026-11-11 13:24:26Z
Finished: 2026-11-11 13:24:55Z
Archive: 745 KB
Favicon source: html_link / favicon-v7
Analysis ID: c32dc3e9-5bc4...

Document-source diagnostics

These records identify rejected document reads. A current epoch does not prove that a replacement read succeeded. Later success does not erase an earlier evidence limit.

No rejected document reads were recorded.

Browser-observed navigation status

The browser status can differ from the normalized origin response, including during a proxy failure. Inspect the recorded document request for origin response evidence.

Navigation	Browser-observed HTTP status	Recorded requests
0	200	Inspect navigation 0 requests

Showing 0–0 of 0

Signals by severity

Detected findings grouped by risk

Request activity

Network requests grouped by resource type

Behavior

Recorded actions grouped by type

Network contacts

Requests to the most active hosts

Request ownership

First-party and third-party requests

Response MIME types

Network responses grouped by MIME type

	Nav	Status	Method	Domain	Path	Type	Size

Observed cookies

Response declarations and context-wide browser observations. Navigation identifies where a jar was inspected, not which page set each cookie.

HTTP headers: complete

Browser snapshots: complete

Name	Domain	Path	Source	Attributes

Browser collection history

document_ready · 2026-11-11T13:24:32.542697Z · navigation 0
Collection: complete
dom_ready · 2026-11-11T13:24:32.543162Z · navigation 0
Collection: complete
network_idle · 2026-11-11T13:24:34.831181Z · navigation 0
Collection: complete
pre_interaction · 2026-11-11T13:24:35.762002Z · navigation 0
Collection: complete
final · 2026-11-11T13:24:37.428659Z · navigation 0
Collection: complete
settled · 2026-11-11T13:24:37.589173Z · navigation 0
Collection: complete