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### Understand the alert
The Netdata Agent monitors your HTTP endpoints. You can specify endpoints that the agent will monitor in Agent's Go module under `go.d/httpcheck.conf`. You can also specify the expected response pattern. This HTTP endpoint will send in the `response_match` option. If the endpoint's response does not match the `response_match` pattern, then the Agent marks the response as unexpected.
The Netdata Agent calculates the average ratio of HTTP responses with unexpected content over the last 5 minutes.
This alert is escalated to warning if the percentage of unexpected content is greater than 10% and then raised to critical if it is greater than 40%.
### Troubleshoot the alert
Check the actual response and the expected response.
1. Try to implement a request with a verbose result:
```
curl -v <your_http_endpoint>:<port>/<path>
```
2. Compare it with the expected response.
Check your configuration under `go.d/httpcheck.conf`:
```
cd /etc/netdata # Replace this path with your Netdata config directory
sudo ./edit-config go.d/httpcheck.conf
```
### Useful resources
1. [HTTP endpoint monitoring with Netdata](https://learn.netdata.cloud/docs/agent/collectors/go.d.plugin/modules/httpcheck)
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