If you read this you are probably trying to configure CloudFlare with OVH Public Object Storage.
The documentation Configure a domain name on your Object Storage container states:
You can only use one of these DNS records at a time.
However, to have CloudFlare cache, you need to configure both
- The CNAME is used for CloudFlare to find the OVH endpoint, which CloudFlare then presents (in the caching case) as the CF IPs. This will cause the OVH Public Storage to deny the request, as it’s DNS request doesn’t point to itself, but to the CF IPs. There fore you also need:
- The TXT record, this will (in the CNAME case not pointing to OVH but to CF) have the OVH authorization succeed.