Jeff Kaufman
118 lines
4.2 KiB
Markdown
118 lines
4.2 KiB
Markdown
|
|
|
|
ngx_pagespeed speeds up your site and reduces page load time by automatically
|
|
applying web performance best practices to pages and associated assets (CSS,
|
|
JavaScript, images) without requiring you to modify your existing content or
|
|
workflow. Features include:
|
|
|
|
- Image optimization: stripping meta-data, dynamic resizing, recompression
|
|
- CSS & JavaScript minification, concatenation, inlining, and outlining
|
|
- Small resource inlining
|
|
- Deferring image and JavaScript loading
|
|
- HTML rewriting
|
|
- Cache lifetime extension
|
|
- and
|
|
[more](https://developers.google.com/speed/docs/mod_pagespeed/config_filters)
|
|
|
|
To see ngx_pagespeed in action, with example pages for each of the
|
|
optimizations, see our <a href="http://ngxpagespeed.com">demonstration site</a>.
|
|
|
|
## How to build
|
|
|
|
Because nginx does not support dynamic loading of modules, you need to compile
|
|
nginx from source to add ngx_pagespeed. Alternatively, if you're using Tengine you can [install ngx_pagespeed without
|
|
recompiling Tengine](https://github.com/pagespeed/ngx_pagespeed/wiki/Using-ngx_pagespeed-with-Tengine).
|
|
|
|
1. Install dependencies:
|
|
|
|
```bash
|
|
# These are for RedHat, CentOS, and Fedora.
|
|
$ sudo yum install gcc-c++ pcre-dev pcre-devel zlib-devel make
|
|
|
|
# These are for Debian. Ubuntu will be similar.
|
|
$ sudo apt-get install build-essential zlib1g-dev libpcre3 libpcre3-dev
|
|
```
|
|
|
|
2. Download ngx_pagespeed:
|
|
|
|
```bash
|
|
$ cd ~
|
|
$ wget https://github.com/pagespeed/ngx_pagespeed/archive/release-1.6.29.5-beta.zip
|
|
$ unzip release-1.6.29.5-beta.zip # or unzip release-1.6.29.5-beta
|
|
$ cd ngx_pagespeed-release-1.6.29.5-beta/
|
|
$ wget https://dl.google.com/dl/page-speed/psol/1.6.29.5.tar.gz
|
|
$ tar -xzvf 1.6.29.5.tar.gz # expands to psol/
|
|
```
|
|
|
|
3. Download and build nginx:
|
|
|
|
```bash
|
|
$ # check http://nginx.org/en/download.html for the latest version
|
|
$ wget http://nginx.org/download/nginx-1.4.2.tar.gz
|
|
$ tar -xvzf nginx-1.4.2.tar.gz
|
|
$ cd nginx-1.4.2/
|
|
$ ./configure --add-module=$HOME/ngx_pagespeed-release-1.6.29.5-beta
|
|
$ make
|
|
$ sudo make install
|
|
```
|
|
|
|
If this doesn't work see the [build
|
|
troubleshooting](https://github.com/pagespeed/ngx_pagespeed/wiki/Build-Troubleshooting) page.
|
|
|
|
This will use a binary PageSpeed Optimization Library, but it's also possible to
|
|
[build PSOL from
|
|
source](https://github.com/pagespeed/ngx_pagespeed/wiki/Building-PSOL-From-Source).
|
|
|
|
Note: ngx_pagespeed currently doesn't support Windows or MacOS because the
|
|
underlying PSOL library doesn't.
|
|
|
|
## How to use
|
|
|
|
In your `nginx.conf`, add to the main or server block:
|
|
|
|
```nginx
|
|
pagespeed on;
|
|
|
|
# needs to exist and be writable by nginx
|
|
pagespeed FileCachePath /var/ngx_pagespeed_cache;
|
|
```
|
|
|
|
In every server block where pagespeed is enabled add:
|
|
|
|
```apache
|
|
# Ensure requests for pagespeed optimized resources go to the pagespeed
|
|
# handler and no extraneous headers get set.
|
|
location ~ "\.pagespeed\.([a-z]\.)?[a-z]{2}\.[^.]{10}\.[^.]+" { add_header "" ""; }
|
|
location ~ "^/ngx_pagespeed_static/" { }
|
|
location ~ "^/ngx_pagespeed_beacon$" { }
|
|
location /ngx_pagespeed_statistics { allow 127.0.0.1; deny all; }
|
|
location /ngx_pagespeed_message { allow 127.0.0.1; deny all; }
|
|
location /pagespeed_console { allow 127.0.0.1; deny all; }
|
|
```
|
|
|
|
To confirm that the module is loaded, fetch a page and check that you see the
|
|
`X-Page-Speed` header:
|
|
|
|
```bash
|
|
$ curl -I 'http://localhost:8050/some_page/' | grep X-Page-Speed
|
|
X-Page-Speed: 1.6.29.5-...
|
|
```
|
|
|
|
Looking at the source of a few pages you should see various changes, such as
|
|
urls being replaced with new ones like `yellow.css.pagespeed.ce.lzJ8VcVi1l.css`.
|
|
|
|
For complete documentation, see [Using
|
|
PageSpeed](https://developers.google.com/speed/pagespeed/module/using).
|
|
|
|
There are extensive system tests which cover most of ngx_pagespeed's
|
|
functionality. Consider [testing your
|
|
installation](https://github.com/pagespeed/ngx_pagespeed/wiki/Testing).
|
|
|
|
For feedback, questions, and to follow
|
|
the progress of the project:
|
|
|
|
- [ngx-pagespeed-discuss mailing
|
|
list](https://groups.google.com/forum/#!forum/ngx-pagespeed-discuss)
|
|
- [ngx-pagespeed-announce mailing
|
|
list](https://groups.google.com/forum/#!forum/ngx-pagespeed-announce)
|