ยฉ 2026 Hedgehog Software, LLC

TwitterGitHubDiscord
More
CommunitiesDocsAboutTermsPrivacy
Search
Star
Setup for Free
Cloudflare DevelopersCD
Cloudflare Developersโ€ข13mo agoโ€ข
5 replies
olivier

Subdomains show Cloudflare error 1001

Hi,

I've setup our SaaS company's website behind cloudflare and the (@) and (www) DNS records are successfully proxied.

We host a bunch of customer websites under custom domains (example.com OR sub.example.com) as well as on our own subdomains (X.niceboard.co), which use our wildcard DNS record (*).

Currently, our wildcard DNS record is DNS only but when I set it to be "proxied", it seemed to work initially, then the sites displayed a Cloudflare error 1001.

I don't understand why this is happening given that the custom domains point directly to our server IP, and therefore shouldn't even be going through Cloudflare? Any ideas? Our SSL mode is on "Full (strict)"
Screen_Shot_2025-02-03_at_1.37.24_PM.png
Cloudflare Developers banner
Cloudflare DevelopersJoin
Welcome to the official Cloudflare Developers server. Here you can ask for help and stay updated with the latest news
85,042Members
Resources

Similar Threads

Was this page helpful?
Recent Announcements

Similar Threads

Cloudflare domain subdomains
Cloudflare DevelopersCDCloudflare Developers / general-help
9mo ago
Error 1001 - DNS resolution error
Cloudflare DevelopersCDCloudflare Developers / general-help
12mo ago
Error 1001 - DNS resolution error
Cloudflare DevelopersCDCloudflare Developers / general-help
2y ago
Dashboard authentication error 1001
Cloudflare DevelopersCDCloudflare Developers / general-help
2y ago