Content compression

You can transmit content from CDN servers to clients in a compressed format. You can enable compression in the resource settings.

GZIP compression is used. Content is sent in compressed form only if the client's request contains an HTTP header indicating gzip support: Accept-Encoding: gzip. Otherwise, an uncompressed file is sent.

Enabling content compression also helps avoid the situation where compressed files are delivered to users who had not requested compressed content. For more information, see Troubleshooting in Cloud CDN.

Files of the following MIME types can be compressed:

• application/javascript
• application/json
• application/x-javascript
• application/xml
• application/xml+rss
• image/svg+xml
• text/css
• text/html
• text/javascript
• text/plain
• text/xml

The MIME type is determined by the Content-Type HTTP header value in the origin's response to the CDN server request.

Useful linksUseful links

Guide on enabling compression.