diff --git a/docs/content/general/proxy.md b/docs/content/general/proxy.md
index 1a00ca4e..17b2bcd4 100644
--- a/docs/content/general/proxy.md
+++ b/docs/content/general/proxy.md
@@ -452,6 +452,45 @@ $ curl -H "Authorization: Bearer $TOKEN" http://localhost:9001/api/v1/namespaces
 
 > NOTE: `kubectl` will not work against a `http` server.
 
+## Metrics
+
+Starting from the v0.3.0 release, Capsule Proxy exposes Prometheus metrics available at `http://0.0.0.0:8080/metrics`.
+
+The offered metrics are related to the internal `controller-manager` code base, such as work-queue and REST client requests, and the Go runtime ones.
+
+Along with these, metrics `capsule_proxy_response_time_seconds` and `capsule_proxy_requests_total` have been introduced and are specific to the Capsule Proxy code-base and functionalities.
+
+`capsule_proxy_response_time_seconds` offers a bucket representation of the HTTP request duration.
+The available variables for this metrics are the following ones:
+- `path`: the HTTP path of each single request that Capsule Proxy passes to the upstream
+
+`capsule_proxy_requests_total` counts the global requests that Capsule Proxy is passing to the upstream with the following labels.
+- `path`: the HTTP path of each single request that Capsule Proxy passes to the upstream
+- `status`: the HTTP status code of the request
+
+> Example output of the metrics:
+> ```
+> # HELP capsule_proxy_requests_total Number of requests
+> # TYPE capsule_proxy_requests_total counter
+> capsule_proxy_requests_total{path="/api/v1/namespaces",status="403"} 1
+> # HELP capsule_proxy_response_time_seconds Duration of capsule proxy requests.
+> # TYPE capsule_proxy_response_time_seconds histogram
+> capsule_proxy_response_time_seconds_bucket{path="/api/v1/namespaces",le="0.005"} 0
+> capsule_proxy_response_time_seconds_bucket{path="/api/v1/namespaces",le="0.01"} 0
+> capsule_proxy_response_time_seconds_bucket{path="/api/v1/namespaces",le="0.025"} 0
+> capsule_proxy_response_time_seconds_bucket{path="/api/v1/namespaces",le="0.05"} 0
+> capsule_proxy_response_time_seconds_bucket{path="/api/v1/namespaces",le="0.1"} 0
+> capsule_proxy_response_time_seconds_bucket{path="/api/v1/namespaces",le="0.25"} 0
+> capsule_proxy_response_time_seconds_bucket{path="/api/v1/namespaces",le="0.5"} 0
+> capsule_proxy_response_time_seconds_bucket{path="/api/v1/namespaces",le="1"} 0
+> capsule_proxy_response_time_seconds_bucket{path="/api/v1/namespaces",le="2.5"} 1
+> capsule_proxy_response_time_seconds_bucket{path="/api/v1/namespaces",le="5"} 1
+> capsule_proxy_response_time_seconds_bucket{path="/api/v1/namespaces",le="10"} 1
+> capsule_proxy_response_time_seconds_bucket{path="/api/v1/namespaces",le="+Inf"} 1
+> capsule_proxy_response_time_seconds_sum{path="/api/v1/namespaces"} 2.206192787
+> capsule_proxy_response_time_seconds_count{path="/api/v1/namespaces"} 1
+> ```
+
 ## Contributing
 
 `capsule-proxy` is an open-source software released with Apache2 [license](https://github.com/clastix/capsule-proxy/blob/master/LICENSE).