traefik/docs/content/observability/metrics/overview.md

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# Metrics
Traefik supports 4 metrics backends:
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- [Datadog](./datadog.md)
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- [InfluxDB](./influxdb.md)
- [Prometheus](./prometheus.md)
- [StatsD](./statsd.md)
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## Global Metrics
| Metric | DataDog | InfluxDB | Prometheus | StatsD |
|-------------------------------------------------------------------------|---------|----------|------------|--------|
| [Configuration reloads](#configuration-reloads) | ✓ | ✓ | ✓ | ✓ |
| [Last Configuration Reload Success](#last-configuration-reload-success) | ✓ | ✓ | ✓ | ✓ |
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| [TLS certificates expiration](#tls-certificates-expiration) | ✓ | ✓ | ✓ | ✓ |
### Configuration Reloads
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The total count of configuration reloads.
```dd tab="Datadog"
config.reload.total
```
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```influxdb tab="InfluxDB"
traefik.config.reload.total
```
```prom tab="Prometheus"
traefik_config_reloads_total
```
```statsd tab="StatsD"
# Default prefix: "traefik"
{prefix}.config.reload.total
```
### Last Configuration Reload Success
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The timestamp of the last configuration reload success.
```dd tab="Datadog"
config.reload.lastSuccessTimestamp
```
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```influxdb tab="InfluxDB"
traefik.config.reload.lastSuccessTimestamp
```
```prom tab="Prometheus"
traefik_config_last_reload_success
```
```statsd tab="StatsD"
# Default prefix: "traefik"
{prefix}.config.reload.lastSuccessTimestamp
```
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### TLS certificates expiration
The expiration date of certificates.
[Labels](#labels): `cn`, `sans`, `serial`.
```dd tab="Datadog"
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tls.certs.notAfterTimestamp
```
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```influxdb tab="InfluxDB"
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traefik.tls.certs.notAfterTimestamp
```
```prom tab="Prometheus"
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traefik_tls_certs_not_after
```
```statsd tab="StatsD"
# Default prefix: "traefik"
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{prefix}.tls.certs.notAfterTimestamp
```
## EntryPoint Metrics
| Metric | DataDog | InfluxDB | Prometheus | StatsD |
|-----------------------------------------------------------|---------|----------|------------|--------|
| [HTTP Requests Count](#http-requests-count) | ✓ | ✓ | ✓ | ✓ |
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| [HTTPS Requests Count](#https-requests-count) | ✓ | ✓ | ✓ | ✓ |
| [Request Duration Histogram](#request-duration-histogram) | ✓ | ✓ | ✓ | ✓ |
| [Open Connections Count](#open-connections-count) | ✓ | ✓ | ✓ | ✓ |
### HTTP Requests Count
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The total count of HTTP requests received by an entrypoint.
[Labels](#labels): `code`, `method`, `protocol`, `entrypoint`.
```dd tab="Datadog"
entrypoint.request.total
```
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```influxdb tab="InfluxDB"
traefik.entrypoint.requests.total
```
```prom tab="Prometheus"
traefik_entrypoint_requests_total
```
```statsd tab="StatsD"
# Default prefix: "traefik"
{prefix}.entrypoint.request.total
```
### HTTPS Requests Count
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The total count of HTTPS requests received by an entrypoint.
[Labels](#labels): `tls_version`, `tls_cipher`, `entrypoint`.
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```dd tab="Datadog"
entrypoint.request.tls.total
```
```influxdb tab="InfluxDB"
traefik.entrypoint.requests.tls.total
```
```prom tab="Prometheus"
traefik_entrypoint_requests_tls_total
```
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```statsd tab="StatsD"
# Default prefix: "traefik"
{prefix}.entrypoint.request.tls.total
```
### Request Duration Histogram
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Request processing duration histogram on an entrypoint.
[Labels](#labels): `code`, `method`, `protocol`, `entrypoint`.
```dd tab="Datadog"
entrypoint.request.duration
```
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```influxdb tab="InfluxDB"
traefik.entrypoint.request.duration
```
```prom tab="Prometheus"
traefik_entrypoint_request_duration_seconds
```
```statsd tab="StatsD"
# Default prefix: "traefik"
{prefix}.entrypoint.request.duration
```
### Open Connections Count
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The current count of open connections on an entrypoint.
[Labels](#labels): `method`, `protocol`, `entrypoint`.
```dd tab="Datadog"
entrypoint.connections.open
```
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```influxdb tab="InfluxDB"
traefik.entrypoint.connections.open
```
```prom tab="Prometheus"
traefik_entrypoint_open_connections
```
```statsd tab="StatsD"
# Default prefix: "traefik"
{prefix}.entrypoint.connections.open
```
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## Router Metrics
| Metric | DataDog | InfluxDB | Prometheus | StatsD |
|-------------------------------------------------------------|---------|----------|------------|--------|
| [HTTP Requests Count](#http-requests-count_1) | ✓ | ✓ | ✓ | ✓ |
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| [HTTPS Requests Count](#https-requests-count_1) | ✓ | ✓ | ✓ | ✓ |
| [Request Duration Histogram](#request-duration-histogram_1) | ✓ | ✓ | ✓ | ✓ |
| [Open Connections Count](#open-connections-count_1) | ✓ | ✓ | ✓ | ✓ |
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### HTTP Requests Count
The total count of HTTP requests handled by a router.
[Labels](#labels): `code`, `method`, `protocol`, `router`, `service`.
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```dd tab="Datadog"
router.request.total
```
```influxdb tab="InfluxDB"
traefik.router.requests.total
```
```prom tab="Prometheus"
traefik_router_requests_total
```
```statsd tab="StatsD"
# Default prefix: "traefik"
{prefix}.router.request.total
```
### HTTPS Requests Count
The total count of HTTPS requests handled by a router.
[Labels](#labels): `tls_version`, `tls_cipher`, `router`, `service`.
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```dd tab="Datadog"
router.request.tls.total
```
```influxdb tab="InfluxDB"
traefik.router.requests.tls.total
```
```prom tab="Prometheus"
traefik_router_requests_tls_total
```
```statsd tab="StatsD"
# Default prefix: "traefik"
{prefix}.router.request.tls.total
```
### Request Duration Histogram
Request processing duration histogram on a router.
[Labels](#labels): `code`, `method`, `protocol`, `router`, `service`.
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```dd tab="Datadog"
router.request.duration
```
```influxdb tab="InfluxDB"
traefik.router.request.duration
```
```prom tab="Prometheus"
traefik_router_request_duration_seconds
```
```statsd tab="StatsD"
# Default prefix: "traefik"
{prefix}.router.request.duration
```
### Open Connections Count
The current count of open connections on a router.
[Labels](#labels): `method`, `protocol`, `router`, `service`.
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```dd tab="Datadog"
router.connections.open
```
```influxdb tab="InfluxDB"
traefik.router.connections.open
```
```prom tab="Prometheus"
traefik_router_open_connections
```
```statsd tab="StatsD"
# Default prefix: "traefik"
{prefix}.router.connections.open
```
## Service Metrics
| Metric | DataDog | InfluxDB | Prometheus | StatsD |
|-------------------------------------------------------------|---------|----------|------------|--------|
| [HTTP Requests Count](#http-requests-count_2) | ✓ | ✓ | ✓ | ✓ |
| [HTTPS Requests Count](#https-requests-count_2) | ✓ | ✓ | ✓ | ✓ |
| [Request Duration Histogram](#request-duration-histogram_2) | ✓ | ✓ | ✓ | ✓ |
| [Open Connections Count](#open-connections-count_2) | ✓ | ✓ | ✓ | ✓ |
| [Requests Retries Count](#requests-retries-count) | ✓ | ✓ | ✓ | ✓ |
| [Service Server UP](#service-server-up) | ✓ | ✓ | ✓ | ✓ |
### HTTP Requests Count
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The total count of HTTP requests processed on a service.
[Labels](#labels): `code`, `method`, `protocol`, `service`.
```dd tab="Datadog"
service.request.total
```
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```influxdb tab="InfluxDB"
traefik.service.requests.total
```
```prom tab="Prometheus"
traefik_service_requests_total
```
```statsd tab="StatsD"
# Default prefix: "traefik"
{prefix}.service.request.total
```
### HTTPS Requests Count
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The total count of HTTPS requests processed on a service.
[Labels](#labels): `tls_version`, `tls_cipher`, `service`.
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```dd tab="Datadog"
router.service.tls.total
```
```influxdb tab="InfluxDB"
traefik.service.requests.tls.total
```
```prom tab="Prometheus"
traefik_service_requests_tls_total
```
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```statsd tab="StatsD"
# Default prefix: "traefik"
{prefix}.service.request.tls.total
```
### Request Duration Histogram
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Request processing duration histogram on a service.
[Labels](#labels): `code`, `method`, `protocol`, `service`.
```dd tab="Datadog"
service.request.duration
```
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```influxdb tab="InfluxDB"
traefik.service.request.duration
```
```prom tab="Prometheus"
traefik_service_request_duration_seconds
```
```statsd tab="StatsD"
# Default prefix: "traefik"
{prefix}.service.request.duration
```
### Open Connections Count
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The current count of open connections on a service.
[Labels](#labels): `method`, `protocol`, `service`.
```dd tab="Datadog"
service.connections.open
```
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```influxdb tab="InfluxDB"
traefik.service.connections.open
```
```prom tab="Prometheus"
traefik_service_open_connections
```
```statsd tab="StatsD"
# Default prefix: "traefik"
{prefix}.service.connections.open
```
### Requests Retries Count
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The count of requests retries on a service.
[Labels](#labels): `service`.
```dd tab="Datadog"
service.retries.total
```
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```influxdb tab="InfluxDB"
traefik.service.retries.total
```
```prom tab="Prometheus"
traefik_service_retries_total
```
```statsd tab="StatsD"
# Default prefix: "traefik"
{prefix}.service.retries.total
```
### Service Server UP
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Current service's server status, described by a gauge with a value of 0 for a down server or a value of 1 for an up server.
[Labels](#labels): `service`, `url`.
```dd tab="Datadog"
service.server.up
```
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```influxdb tab="InfluxDB"
traefik.service.server.up
```
```prom tab="Prometheus"
traefik_service_server_up
```
```statsd tab="StatsD"
# Default prefix: "traefik"
{prefix}.service.server.up
```
## Labels
Here is a comprehensive list of labels that are provided by the metrics:
| Label | Description | example |
|---------------|---------------------------------------|----------------------------|
| `cn` | Certificate Common Name | "example.com" |
| `code` | Request code | "200" |
| `entrypoint` | Entrypoint that handled the request | "example_entrypoint" |
| `method` | Request Method | "GET" |
| `protocol` | Request protocol | "http" |
| `router` | Router that handled the request | "example_router" |
| `sans` | Certificate Subject Alternative NameS | "example.com" |
| `serial` | Certificate Serial Number | "123..." |
| `service` | Service that handled the request | "example_service@provider" |
| `tls_cipher` | TLS cipher used for the request | "TLS_FALLBACK_SCSV" |
| `tls_version` | TLS version used for the request | "1.0" |
| `url` | Service server url | "http://example.com" |
!!! info "`method` label value"
If the HTTP method verb on a request is not one defined in the set of common methods for [`HTTP/1.1`](https://developer.mozilla.org/en-US/docs/Web/HTTP/Methods)
or the [`PRI`](https://datatracker.ietf.org/doc/html/rfc7540#section-11.6) verb (for `HTTP/2`),
then the value for the method label becomes `EXTENSION_METHOD`.