How do I set the Content-Type for .ogg in Nginx?

Make sure audio/ogg ogg; is listed in the types block (usually in /etc/nginx/mime.types) and reload Nginx.

Should I gzip .ogg files?

No — the format is already compressed, so HTTP compression gives no benefit.

.ogg MIME Type — audio/ogg

audio/ogg

MIME type for .ogg

Audio

What is the MIME type of .ogg files?

The MIME type (media type) for Ogg audio files with the .ogg extension is audio/ogg. Container for Vorbis or Opus audio. .ogv files are video/ogg.

Content-Type header

Content-Type: audio/ogg

Server configuration

Server	Configuration
Nginx (`mime.types` or `types {}`)	`audio/ogg ogg;`
Apache (`.htaccess`)	`AddType audio/ogg .ogg`
IIS (`web.config`)	`<mimeMap fileExtension=".ogg" mimeType="audio/ogg" />`
Node.js / Express	`res.type('ogg')` or `res.setHeader('Content-Type', 'audio/ogg')`
Amazon S3	Set `Content-Type: audio/ogg` on the object (metadata), or pass `--content-type audio/ogg` to `aws s3 cp`

Should .ogg files be compressed?

No. Ogg audio files are already compressed internally, so gzip or Brotli would waste CPU and barely reduce — sometimes even increase — the size. Leave audio/ogg out of your compression configuration.

Why the MIME type matters

Browsers decide what to do with a response — render, run, play or download — from the Content-Type header, not the file extension. With X-Content-Type-Options: nosniff, a wrong type causes stylesheets and scripts to be blocked outright. For uploads, never trust the type sent by the client; check the file’s content (its magic bytes) on the server.

.ogg MIME Type: audio/ogg