If you have an alias domain that only forwards traffic to another domain (that is, the domain does not have an associated origin server of its own), you can set up redirects directly within Cloudflare.
Add your alias domain (for example, previous.com) to Cloudflare.
Make sure that your alias domain has a proxied DNS A or CNAME record that properly resolves DNS queries. You may also want to include a record for the www subdomain.
Use the IP address 192.0.2.1 for the A record. This address does not route traffic to an origin server but allows Cloudflare to apply rules, redirects, and Workers to incoming traffic. The equivalent IP address for an AAAA record is 100::.
| Type | Name | IPv4 address | Proxy status |
|---|---|---|---|
| A | @ | 192.0.2.1 | Proxied |
| A | www | 192.0.2.1 | Proxied |
Use Redirect rules to forward traffic from your alias domain to your other domain.
This example will redirect all requests for smallshop.example.com to a different hostname using HTTPS, keeping the original path and query string.
When incoming requests match
smallshop.example.comIf you are using the Expression Editor, enter the following expression:
(http.host eq "smallshop.example.com")
Then
concat("https://globalstore.example.net", http.request.uri.path)For example, the redirect rule would perform the following redirects:
| Request URL | Target URL | Status code |
|---|---|---|
http://smallshop.example.com/ | https://globalstore.example.net/ | 301 |
http://smallshop.example.com/admin/?logged_out=true | https://globalstore.example.net/admin/?logged_out=true | 301 |
https://smallshop.example.com/?all_items=1 | https://globalstore.example.net/?all_items=1 | 301 |
http://example.com/about/ | (unchanged) | n/a |