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Compress

Compress Responses before Sending them to the Client

Compress

The Compress middleware uses gzip compression.

Configuration Examples

# Enable gzip compression
labels:
  - "traefik.http.middlewares.test-compress.compress=true"
# Enable gzip compression
apiVersion: traefik.containo.us/v1alpha1
kind: Middleware
metadata:
  name: test-compress
spec:
  compress: {}
# Enable gzip compression
- "traefik.http.middlewares.test-compress.compress=true"
"labels": {
  "traefik.http.middlewares.test-compress.compress": "true"
}
# Enable gzip compression
labels:
  - "traefik.http.middlewares.test-compress.compress=true"
# Enable gzip compression
[http.middlewares]
  [http.middlewares.test-compress.compress]
# Enable gzip compression
http:
  middlewares:
    test-compress:
      compress: {}

Info

Responses are compressed when the following criteria are all met:

  • The response body is larger than 1400 bytes.
  • The Accept-Encoding request header contains gzip.
  • The response is not already compressed, i.e. the Content-Encoding response header is not already set.

If the Content-Type header is not defined, or empty, the compress middleware will automatically detect a content type. It will also set the Content-Type header according to the detected MIME type.

Configuration Options

excludedContentTypes

excludedContentTypes specifies a list of content types to compare the Content-Type header of the incoming requests and responses before compressing.

The responses with content types defined in excludedContentTypes are not compressed.

Content types are compared in a case-insensitive, whitespace-ignored manner.

labels:
  - "traefik.http.middlewares.test-compress.compress.excludedcontenttypes=text/event-stream"
apiVersion: traefik.containo.us/v1alpha1
kind: Middleware
metadata:
  name: test-compress
spec:
  compress:
    excludedContentTypes:
      - text/event-stream
- "traefik.http.middlewares.test-compress.compress.excludedcontenttypes=text/event-stream"
"labels": {
  "traefik.http.middlewares.test-compress.compress.excludedcontenttypes": "text/event-stream"
}
labels:
  - "traefik.http.middlewares.test-compress.compress.excludedcontenttypes=text/event-stream"
[http.middlewares]
  [http.middlewares.test-compress.compress]
    excludedContentTypes = ["text/event-stream"]
http:
  middlewares:
    test-compress:
      compress:
        excludedContentTypes:
          - text/event-stream