I’ve encountered a perplexing issue recently while using Cloudflare’s Proxy (CDN) feature for my domain. Regardless of whether my domain is linked to Cloudflare Workers, Pages, a Cloudflare Tunnel, or a standard A record pointing to another server, when I ping the domain, the IP address returned consistently appears in the format of xxx.xxx.xxx.1, such as 104.21.96.1, 104.21.32.1, etc. I’ve done some research and understand that when Cloudflare’s Proxy is enabled, traffic is routed through its edge nodes, and these 104.21.x.1 type IP addresses are indeed within Cloudflare’s IP ranges. However, an IP pattern like xxx.xxx.xxx.1 typically denotes a gateway address or network address in networking contexts, making its use as a public service entry IP somewhat unusual.
What feature, service or problem is this related to?
DNS records
What are the steps to reproduce the issue?
Hopefully it will be assigned a normal ip. Can Cloudflare officials explain what’s going on?
Would you mind sharing the official documentation where this is stated?
Wow, that sucks. You might want to contact them and ask if they could instead block all addresses ending in .13 as that would be more convenient for you.
China telecoms block millions of websites. It is far more likely these are being blocked as the IP is shared by something the Chinese government is censoring than because the IP address ends in in a .1 address.
Cloudflare isn’t going to rotate IPs to try and evade governmental censorship. It’s unfortunate that Chinese ISPs block based on destination IP, it has a lot of collateral damage.
Welp if they’re not doing it for censorship purposes they’ve screwed up their network routing. You should contact them and point out their error. There’s absolutely no reason they shouldn’t route traffic to a gateway address. That’s what gateways are for after all!
You are certainly welcome to open a support ticket if you believe it’s an error, but the community has no control over IP address allocation/assignment.
