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authorChristian Cleberg <hello@cleberg.net>2024-07-28 19:46:20 -0500
committerChristian Cleberg <hello@cleberg.net>2024-07-28 19:46:20 -0500
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-+++
-date = 2022-12-01
-title = "Enable GZIP Compression in Nginx"
-description = ""
-draft = false
-+++
-
-# Text Compression
-
-Text compression allows a web server to serve text-based resources faster than
-uncompressed data. This can speed up things like First Contentful Paint, Tie to
-Interactive, and Speed Index.
-
-# Enable Nginx Compression with gzip
-
-In order to enable text compression on Nginx, we need to enable it within the
-configuration file:
-
-```sh
-nano /etc/nginx/nginx.conf
-```
-
-Within the `http` block, find the section that shows something like the block
-below. This is the default gzip configuration I found in my `nginx.conf` file on
-Alpine Linux 3.17. Yours may look slightly different, just make sure that you're
-not creating any duplicate gzip options.
-
-```conf
-# Enable gzipping of responses.
-#gzip on;
-
-# Set the Vary HTTP header as defined in the RFC 2616. Default is 'off'.
-gzip_vary on;
-```
-
-Remove the default gzip lines and replace them with the following:
-
-```conf
-# Enable gzipping of responses.
-gzip on;
-gzip_vary on;
-gzip_min_length 10240;
-gzip_proxied expired no-cache no-store private auth;
-gzip_types text/plain text/css text/xml text/javascript application/x-javascript application/xml;
-gzip_disable "MSIE [1-6]";
-```
-
-# Explanations of ngx~httpgzipmodule~ Options
-
-Each of the lines above enables a different aspect of the gzip response for
-Nginx. Here are the full explanations:
-
-- `gzip` -- Enables or disables gzipping of responses.
-- `gzip_vary` -- Enables or disables inserting the "Vary: Accept-Encoding"
- response header field if the directives gzip, gzip~static~, or gunzip are
- active.
-- `gzip_min_length` -- Sets the minimum length of a response that will be
- gzipped. The length is determined only from the "Content-Length" response
- header field.
-- `gzip_proxied` -- Enables or disables gzipping of responses for proxied
- requests depending on the request and response. The fact that the request is
- proxied is determined by the presence of the "Via" request header field.
-- `gzip_types` -- Enables gzipping of responses for the specified MIME types
- in addition to "text/html". The special value "\*" matches any MIME type
- (0.8.29). Responses with the "text/html" type are always compressed.
-- `gzip_disable` -- Disables gzipping of responses for requests with
- "User-Agent" header fields matching any of the specified regular
- expressions.
- - The special mask "msie6" (0.7.12) corresponds to the regular expression
- "MSIE [4-6].", but works faster. Starting from version 0.8.11, "MSIE
- 6.0; ... SV1" is excluded from this mask.
-
-More information on these directives and their options can be found on the
-[Module
-ngx~httpgzipmodule~](https://nginx.org/en/docs/http/ngx_http_gzip_module.html)
-page in Nginx's documentation.