Example
When incoming requests match:
| Field | Operator | Value |
|---|---|---|
| URI Path | contains | /blog |
Then:
| Action | Options | Value |
|---|---|---|
| Overrides | Pools | <BLOG_SERVER> |
Create custom rules
Create and manage Load Balancing rules in the Custom Rules page, which is part of the Create/Edit Load Balancer workflow found in Traffic in the dashboard.
- Understand whether Cloudflare proxies your traffic: Depending on the proxy status of your traffic, you may have access to different fields for your load balancing rules. For more details, refer to Supported fields and expressions.
- Log in to the Cloudflare dashboard and select an account and application.
- Go to Traffic > Load Balancing.
- Edit an existing load balancer or create a new load balancer.
- From the Load Balancer workflow, select Custom Rules.
- Select Create Custom Rule.
- In the Field drop-down list, choose an HTTP property. For more details, refer to Supported fields.
- In the Operator drop-down list, choose an operator. For more details, refer to Operators.
- Enter the value to match. When the field is an ordered list, Value is a drop-down list. Otherwise, Value is a text input.
- (Optional) To create a compound expression using logical operators, select And or Or.
- For an action, choose Respond with fixed response or Override and enter additional details. For a full list of actions, refer to Actions.
- (Optional) Select Add another override.
- After you create your rule, select Save and Deploy or Save as Draft.
- Select Next and review your changes.
- Select Save to confirm.
If you want to host example.com/blog separately from your main website, for example, use the following custom rule.