# HTTP Middlewares Overview

HTTP Middlewares in Traefik let you modify requests and responses on the fly. You can configure them in multiple ways (Docker labels, TOML, YAML, etc.).

<details id="bkmrk-configuration-exampl"><summary>Configuration Example in a docker-compose.yaml</summary>

### Configuration Example in a `docker-compose.yaml`

```yaml

# As a Docker Label
whoami:
  # A container that exposes an API to show its IP address
  image: traefik/whoami
  labels:
    # Create a middleware named `foo-add-prefix`
    - "traefik.http.middlewares.foo-add-prefix.addprefix.prefix=/foo"
    # Apply the middleware named `foo-add-prefix` to the router named `router1`
    - "traefik.http.routers.router1.middlewares=foo-add-prefix@docker"

```


</details><details id="bkmrk-configuration-exampl-2"><summary>Configuration Example in a dynamic.toml</summary>

### Configuration Example in a `dynamic.toml`

```toml

[http.routers]
  [http.routers.router1]
    service = "service1"
    middlewares = ["foo-add-prefix"]
    rule = "Host(`example.com`)"

[http.middlewares]
  [http.middlewares.foo-add-prefix.addPrefix]
    prefix = "/foo"

[http.services]
  [http.services.service1]
    [http.services.service1.loadBalancer]

      [[http.services.service1.loadBalancer.servers]]
        url = "http://127.0.0.1:80"

```


</details><details id="bkmrk-configuration-exampl-4"><summary>Configuration Example in a dynamic.yml</summary>

### Configuration Example in a `dynamic.yml`

```yaml

http:
  routers:
    router1:
      service: service1
      middlewares:
        - "foo-add-prefix"
      rule: "Host(`example.com`)"

  middlewares:
    foo-add-prefix:
      addPrefix:
        prefix: "/foo"

  services:
    service1:
      loadBalancer:
        servers:
          - url: "http://127.0.0.1:80"

```

</details>
### Available HTTP Middlewares

<table id="bkmrk-middleware-purpose-a" style="width: 73.2143%; height: 685.329px;"><thead><tr style="height: 29.7969px;"><th style="width: 21.0163%; height: 29.7969px;">Middleware</th><th style="width: 50.3379%; height: 29.7969px;">Purpose</th><th style="width: 28.4553%; height: 29.7969px;">Area</th></tr></thead><tbody><tr style="height: 29.7969px;"><td style="width: 21.0163%; height: 29.7969px;">[AddPrefix](https://doc.traefik.io/traefik/middlewares/http/addprefix/)</td><td style="width: 50.3379%; height: 29.7969px;">Adds a Path Prefix</td><td style="width: 28.4553%; height: 29.7969px;">Path Modifier</td></tr><tr style="height: 29.7969px;"><td style="width: 21.0163%; height: 29.7969px;">[BasicAuth](https://doc.traefik.io/traefik/middlewares/http/basicauth/)</td><td style="width: 50.3379%; height: 29.7969px;">Adds Basic Authentication</td><td style="width: 28.4553%; height: 29.7969px;">Security, Authentication</td></tr><tr style="height: 29.7969px;"><td style="width: 21.0163%; height: 29.7969px;">[Buffering](https://doc.traefik.io/traefik/middlewares/http/buffering/)</td><td style="width: 50.3379%; height: 29.7969px;">Buffers the request/response</td><td style="width: 28.4553%; height: 29.7969px;">Request Lifecycle</td></tr><tr style="height: 29.7969px;"><td style="width: 21.0163%; height: 29.7969px;">[Chain](https://doc.traefik.io/traefik/middlewares/http/chain/)</td><td style="width: 50.3379%; height: 29.7969px;">Combines multiple pieces of middleware</td><td style="width: 28.4553%; height: 29.7969px;">Misc</td></tr><tr style="height: 29.7969px;"><td style="width: 21.0163%; height: 29.7969px;">[CircuitBreaker](https://doc.traefik.io/traefik/middlewares/http/circuitbreaker/)</td><td style="width: 50.3379%; height: 29.7969px;">Prevents calling unhealthy services</td><td style="width: 28.4553%; height: 29.7969px;">Request Lifecycle</td></tr><tr style="height: 29.7969px;"><td style="width: 21.0163%; height: 29.7969px;">[Compress](https://doc.traefik.io/traefik/middlewares/http/compress/)</td><td style="width: 50.3379%; height: 29.7969px;">Compresses the response</td><td style="width: 28.4553%; height: 29.7969px;">Content Modifier</td></tr><tr style="height: 29.7969px;"><td style="width: 21.0163%; height: 29.7969px;">[ContentType](https://doc.traefik.io/traefik/middlewares/http/contenttype/)</td><td style="width: 50.3379%; height: 29.7969px;">Handles Content-Type auto-detection</td><td style="width: 28.4553%; height: 29.7969px;">Misc</td></tr><tr style="height: 29.7969px;"><td style="width: 21.0163%; height: 29.7969px;">[DigestAuth](https://doc.traefik.io/traefik/middlewares/http/digestauth/)</td><td style="width: 50.3379%; height: 29.7969px;">Adds Digest Authentication</td><td style="width: 28.4553%; height: 29.7969px;">Security, Authentication</td></tr><tr style="height: 29.7969px;"><td style="width: 21.0163%; height: 29.7969px;">[Errors](https://doc.traefik.io/traefik/middlewares/http/errorpages/)</td><td style="width: 50.3379%; height: 29.7969px;">Defines custom error pages</td><td style="width: 28.4553%; height: 29.7969px;">Request Lifecycle</td></tr><tr style="height: 29.7969px;"><td style="width: 21.0163%; height: 29.7969px;">[ForwardAuth](https://doc.traefik.io/traefik/middlewares/http/forwardauth/)</td><td style="width: 50.3379%; height: 29.7969px;">Delegates Authentication</td><td style="width: 28.4553%; height: 29.7969px;">Security, Authentication</td></tr><tr style="height: 29.7969px;"><td style="width: 21.0163%; height: 29.7969px;">[Headers](https://doc.traefik.io/traefik/middlewares/http/headers/)</td><td style="width: 50.3379%; height: 29.7969px;">Adds / Updates headers</td><td style="width: 28.4553%; height: 29.7969px;">Security</td></tr><tr style="height: 29.7969px;"><td style="width: 21.0163%; height: 29.7969px;">[IPAllowList](https://doc.traefik.io/traefik/middlewares/http/ipallowlist/)</td><td style="width: 50.3379%; height: 29.7969px;">Limits the allowed client IPs</td><td style="width: 28.4553%; height: 29.7969px;">Security, Request lifecycle</td></tr><tr style="height: 29.7969px;"><td style="width: 21.0163%; height: 29.7969px;">[InFlightReq](https://doc.traefik.io/traefik/middlewares/http/inflightreq/)</td><td style="width: 50.3379%; height: 29.7969px;">Limits the number of simultaneous connections</td><td style="width: 28.4553%; height: 29.7969px;">Security, Request lifecycle</td></tr><tr style="height: 29.7969px;"><td style="width: 21.0163%; height: 29.7969px;">[PassTLSClientCert](https://doc.traefik.io/traefik/middlewares/http/passtlsclientcert/)</td><td style="width: 50.3379%; height: 29.7969px;">Adds Client Certificates in a Header</td><td style="width: 28.4553%; height: 29.7969px;">Security</td></tr><tr style="height: 29.7969px;"><td style="width: 21.0163%; height: 29.7969px;">[RateLimit](https://doc.traefik.io/traefik/middlewares/http/ratelimit/)</td><td style="width: 50.3379%; height: 29.7969px;">Limits the call frequency</td><td style="width: 28.4553%; height: 29.7969px;">Security, Request lifecycle</td></tr><tr style="height: 29.7969px;"><td style="width: 21.0163%; height: 29.7969px;">[RedirectScheme](https://doc.traefik.io/traefik/middlewares/http/redirectscheme/)</td><td style="width: 50.3379%; height: 29.7969px;">Redirects based on scheme</td><td style="width: 28.4553%; height: 29.7969px;">Request lifecycle</td></tr><tr style="height: 29.7969px;"><td style="width: 21.0163%; height: 29.7969px;">[RedirectRegex](https://doc.traefik.io/traefik/middlewares/http/redirectregex/)</td><td style="width: 50.3379%; height: 29.7969px;">Redirects based on regex</td><td style="width: 28.4553%; height: 29.7969px;">Request lifecycle</td></tr><tr style="height: 29.7969px;"><td style="width: 21.0163%; height: 29.7969px;">[ReplacePath](https://doc.traefik.io/traefik/middlewares/http/replacepath/)</td><td style="width: 50.3379%; height: 29.7969px;">Changes the path of the request</td><td style="width: 28.4553%; height: 29.7969px;">Path Modifier</td></tr><tr style="height: 29.7969px;"><td style="width: 21.0163%; height: 29.7969px;">[ReplacePathRegex](https://doc.traefik.io/traefik/middlewares/http/replacepathregex/)</td><td style="width: 50.3379%; height: 29.7969px;">Changes the path of the request</td><td style="width: 28.4553%; height: 29.7969px;">Path Modifier</td></tr><tr style="height: 29.7969px;"><td style="width: 21.0163%; height: 29.7969px;">[Retry](https://doc.traefik.io/traefik/middlewares/http/retry/)</td><td style="width: 50.3379%; height: 29.7969px;">Automatically retries in case of error</td><td style="width: 28.4553%; height: 29.7969px;">Request lifecycle</td></tr><tr style="height: 29.7969px;"><td style="width: 21.0163%; height: 29.7969px;">[StripPrefix](https://doc.traefik.io/traefik/middlewares/http/stripprefix/)</td><td style="width: 50.3379%; height: 29.7969px;">Changes the path of the request</td><td style="width: 28.4553%; height: 29.7969px;">Path Modifier</td></tr><tr style="height: 29.7969px;"><td style="width: 21.0163%; height: 29.7969px;">[StripPrefixRegex](https://doc.traefik.io/traefik/middlewares/http/stripprefixregex/)</td><td style="width: 50.3379%; height: 29.7969px;">Changes the path of the request</td><td style="width: 28.4553%; height: 29.7969px;">Path Modifier</td></tr></tbody></table>

For even more options, check out the [community-contributed plugins](https://plugins.traefik.io/plugins) in the plugin catalog.