How to compress webpages on the server

From	RS Wood <rswood@therandymon.com>
Newsgroups	comp.misc
Subject	How to compress webpages on the server
Date	2014-02-28 20:05 +0000
Organization	solani.org
Message-ID	<leqq66$8dp$1@solani.org> (permalink)

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From the "under a honking big rock" department:
Title: Compress your web pages for better performance
Author: Federico Kereki
Date: Thu, 27 Feb 2014 11:15:00 -0500
Link: http://feedproxy.google.com/~r/openlogic/wazi/~3/t-c4dunv1IQ/Compress-your-web-pages-for-better-performance

Users always want faster access to web resources. If your website is sluggish
and serves pages slowly, would-be visitors won't wait, and will go elsewhere
instead. Fortunately, you can employ several tools to compress your code and
output and thus send fewer bytes over the Net, enhancing download times and
creating a better user experience.

We'll look at tools that can:

* Set your web server to compress (zip) all of its output.
* Minify[1] your JavaScript code, to yield a shorter but equivalent
version.
* Clean up your CSS rules and HTML code and remove unnecessary contents.

Some of the tools you must apply before deploying your site, and some require
configuration changes to Apache[2] or whatever web server you use. We won't
be going into any tools that require changing your program logic (for
example, using jQuery[3] to dynamically load JavaScript[4] on demand, for a
shorter initial download) because that approach can inject interesting bugs
into your pages.

Deflate your output

Whenever a client browser requests a page from a server, it can specify
whether it will accept compressed data (meaning that the client can
decompress whatever it receives) by means of the Accept-Encoding[5] request
header. The server, if it is able to produce the requested compression, will
include the Content-Encoding[6] header in the returned data, showing what
method it applied to the data.

You can easily see how this works with the wget command and Wazi's own
servers. If you ask for the page without encoding, you get 76,250 bytes
(about 75K):
> wget -S -nv -O wazi.html www.openlogic.com/wazi
HTTP/1.1 200 OK
Cache-Control: private
Content-Type: text/html; charset=utf-8
Server: Microsoft-IIS/7.5
X-AspNet-Version: 2.0.50727
X-Powered-By: ASP.NET
Date: Sun, 16 Feb 2014 00:45:24 GMT
Transfer-Encoding:  chunked
Connection: keep-alive
Connection: Transfer-Encoding
2014-02-15 22:45:24 URL:http://www.openlogic.com/wazi [76250] -> "wazi.html" [1]

However, if you include the Accept-Encoding header, you get the same data,
but gzipped, reduced more than 80% to 14,315 bytes, or less than 14K:
> wget -S -nv -O wazi.compressed --header "Accept-Encoding: gzip, deflate, compress" www.openlogic.com/wazi
HTTP/1.1 200 OK
Cache-Control: private
Content-Type: text/html; charset=utf-8
Server: Microsoft-IIS/7.5
X-AspNet-Version: 2.0.50727
X-Powered-By: ASP.NET
Vary: Accept-Encoding
Content-Encoding: gzip
Content-Length: 14315
Date: Sun, 16 Feb 2014 00:46:10 GMT
Connection: keep-alive
2014-02-15 22:46:10 URL:http://www.openlogic.com/wazi [14315/14315] -> "wazi.compressed" [1]

All commonly used web browsers support this kind of compression, and
routinely ask servers if they can provide compressed data, so enabling this
feature for your site is an easy win. To do so with Apache you have to enable
mod_deflate; include a LoadModule deflate_module /path/to/your/mod_deflate.so
line in your httpd.conf file. The path for the module depends on your
distribution, but you can easily determine it by checking out the other
current LoadModule lines. If the module doesn't exist, use your favorite
package manager to get it; mod_deflate is standard, and available in
distribution repositories.

You also have to specify what kind of MIME type[7] results should be
compressed. Edit your .htaccess file to include a list like this:
<>IfModule mod_deflate.c>
AddOutputFilterByType DEFLATE application/javascript
AddOutputFilterByType DEFLATE application/rss+xml
AddOutputFilterByType DEFLATE application/x-javascript
AddOutputFilterByType DEFLATE application/xml
AddOutputFilterByType DEFLATE application/xhtml+xml
AddOutputFilterByType DEFLATE text/css
AddOutputFilterByType DEFLATE text/html
AddOutputFilterByType DEFLATE text/javascript
AddOutputFilterByType DEFLATE text/plain
AddOutputFilterByType DEFLATE text/richtext
AddOutputFilterByType DEFLATE text/x-component
AddOutputFilterByType DEFLATE text/xsd
AddOutputFilterByType DEFLATE text/xsl
AddOutputFilterByType DEFLATE text/xml
AddOutputFilterByType DEFLATE image/svg+xml
AddOutputFilterByType DEFLATE image/x-icon
<>/IfModule>

Not all files should be compressed; for example, compressing an already
compressed ZIP file before sending it to the client would be a waste of time.

Restart your Apache server, and from that moment on, the web server will be
able to honor all data compression requests. If you're using another web
server, check the project's documentation; changes along the lines of what we
did for Apache will be in order, but since all major servers support data
compression, enabling it shouldn't be a hard task.

Minify your JavaScript

Even if you are deflating its output, the files that your web server has to
send should be as small as possible. Many tools can minify your JavaScript
code, producing an equivalent but smaller version. As a side benefit, the
software can obfuscate files, meaning that they will be harder to understand
by third parties, thus providing some degree of intellectual property
protection, and it can optimize them.

YUI Compressor[8] 2.4.8, developed by the Yahoo! User Interface[9] group, is
provided as a Java jar file that you run on Linux, Windows, or OS X. To test
it, I used the latest jQuery[10] version 2 uncompressed file, which runs
nearly 240K for 10,000 lines of code. For the test I purposely got the bigger
development version of jQuery; for actual use on your site you would use the
81K production version.

To learn about YUI Compressor's options, type java -jar
yuicompressor-2.4.8.jar --help. For my test I ran java -jar
yuicompressor-2.4.8.jar -o jquery.yui.js jquery-2.1.0.js, and it produced a
127K file, about 50% size of the original. Just to give you a taste of
minified code, the start of the new file looks like this:
/*!
* jQuery JavaScript Library v2.1.0
* http://jquery.com/
*
* Includes Sizzle.js
* http://sizzlejs.com/
*
* Copyright 2005, 2014 jQuery Foundation, Inc. and other contributors
* Released under the MIT license
* http://jquery.org/license
*
* Date: 2014-01-23T21:10Z
*/
(function(b,a){if(typeof module==="object"&&typeof module.exports==="object"){module.exports=b.document?a(b,true):function(c){if(!c.document){throw new Error("jQuery requires a window with a document")}
return a(c)}}else{a(b)}}(typeof window!=="undefined"?window:this,function(window,noGlobal){var arr=[];var slice=arr.slice;var concat=arr.concat;var push=arr.push;var indexOf=arr.indexOf;var class2type={
};var toString=class2type.toString;var hasOwn=class2type.hasOwnProperty;var trim="".trim;var support={};var document=window.document,version="2.1.0",jQuery=function(selector,context){return new jQuery.f
n.init(selector,context)},rmsPrefix=http://www.openlogic.com/^-ms-/,rdashAlpha=http://www.openlogic.com/-([da-z])/gi,fcamelCase=function(all,letter){return letter.toUpperCase()};jQuery.fn=jQuery.prototype={jquery:version,constructor:jQuery,selector:
"",length:0,toArray:function(){return slice.call(this)},get:function(num){return num!=null?(num<>0?this[num+this.length]:this[num]):slice.call(this)},pushStack:function(elems){var ret=jQuery.merge(this.c
onstructor(),elems);ret.prevObject=this;ret.context=this.context;return ret},each:function(callback,args){return jQuery.each(this,callback,args)},map:function(callback){return this.pushStack(jQuery.map(
this,function(elem,i){return callback.call(elem,i,elem)}))},slice:function(){return this.pushStack(slice.apply(this,arguments))},first:function(){return this.eq(0)},last:function(){return this.eq(-1)},e
q:function(i){var len=this.length,j=+i+(i<>0?len:0);return this.pushStack(j>=0&&j<>len?[this[j]]:[])},end:function(){return this.prevObject||this.constructor(null)},push:push,sort:arr.sort,splice:arr.spli
ce};jQuery.extend=jQuery.fn.extend=function(){var options,name,src,copy,copyIsArray,clone,target=arguments[0]||{},i=1,length=arguments.length,deep=false;if(typeof target==="boolean"){deep=target;target=
arguments[i]||{};i++}if(typeof target!=="object"&&!jQuery.isFunction(target)){target={}}if(i===length){target=this;i--}for(;i<>length;i++){if((options=arguments[i])!=null){for(name in options){src=target
[name];copy=options[name];if(target===copy){continue}if(deep&&copy&&(jQuery.isPlainObject(copy)||(copyIsArray=jQuery.isArray(copy)))){if(copyIsArray){copyIsArray=false;clone=src&&jQuery.isArray(src)?src [...]

Three online JavaScript minifying service alternatives
The javascript-minifier[11] page lets you paste your code and get a minified
alternative; for a command-line process you can also invoke it as a web
service, through a POST request. Packer[12] is another online alternative,
which you can also use as a PHP, Perl, or .NET application. And jscompress[13]
is based upon both Packer and JSMin[14], an old tool by Douglas Crockford.

Note that comments starting with /*! are kept, so copyright and license texts
won't be taken out. (Other compressors may not make that distinction, and may
take out all comments, whatever their origin.) The produced code is more
compact than the original, and if it were further compressed by Apache as we
saw earlier, it would go down to about 30K, which is just an eighth of the
original size.

We'll revisit YUI Compressor again when we consider how to compress CSS, but
let's now look at another compressor that offers even more options and code
trimming.

Google's Closure[15] is in fact more than a minifier, because it not only
removes extra white space, line end characters, and the like, it also revises
your JavaScript code into better JavaScript by analyzing your code, removing
useless bits, and rewriting whatever's left into a smaller, tighter, more
efficient version. As an extra, it warns about possible JavaScript problems.
You can use Closure as a web service or a RESTful API, but I went with a
command-line Java jar version[16]. The latest version is dated 1/10/2014, so
it's quite up-to-date.

Closure has far too many options to list; after unzipping your download, run
java -jar compiler.jar --help to check them out. Working again with the
jQuery source code, I ran java -jar compiler.jar --compilation_level
ADVANCED_OPTIMIZATIONS --js jquery-2.1.0.js
--js_output_file=jquery.closure.advanced.js and got a file of about 75K,
which is smaller than jQuery's own minified version. Here is a sample of the
code. Notice that it is even harder to understand than the YUI Compressor
version; in advanced compilation mode, Closure changes variable and function
names, inlines code, and performs several optimizations that go beyond
minifying.
(function(q,W){"object"===typeof module&&"object"===typeof module.jc?module.jc=q.document?W(q,!0):function(q){if(!q.document)throw Error("jQuery requires a window with a document");return W(q)}:W(q)})("
undefined"!==typeof window?window:this,function(q,W){function ka(a){return a.ownerDocument.defaultView.getComputedStyle(a,null)}function X(a,b){a=b||a;return"none"===d.c(a,"display")||!d.contains(a.owne
rDocument,a)}function Gb(a,b){return b.toUpperCase()}function d(a,b){return new d.b.la(a,b)}function Ba(a){var b=
a.length,c=d.type(a);return"function"===c||d.N(a)?!1:1===a.nodeType&&b?!0:"array"===c||0===b||"number"===typeof b&&0<>b&&b-1 in a}function Ca(a,b,c){if(d.d(b))return d.ja(a,function(a,d){return!!b.call(a
,d,a)!==c});if(b.nodeType)return d.ja(a,function(a){return a===b!==c});if("string"===typeof b){if(Hb.test(b))return d.filter(b,a,c);b=d.filter(b,a)}return d.ja(a,function(a){return 0<>=la.call(b,a)!==c})
}function Qa(a,b){for(;(a=a[b])&&1!==a.nodeType;);return a}function Ib(a){var b=Ra[a]={};d.a(a.match(H)||
[],function(a,d){b[d]=!0});return b}function ma(){s.removeEventListener("DOMContentLoaded",ma,!1);q.removeEventListener("load",ma,!1);d.B()}function L(){Object.defineProperty(this.m={},0,{get:function()
{return{}}});this.expando=d.expando+Math.random()}function Sa(a,b,c){if(void 0===c&&1===a.nodeType)if(c="data-"+b.replace(Jb,"-$1").toLowerCase(),c=a.getAttribute(c),"string"===typeof c){try{c="true"===
c?!0:"false"===c?!1:"null"===c?null:+c+""===c?+c:Kb.test(c)?d.Eb(c):c}catch(f){}C.set(a,b,c)}else c=
void 0;return c}function Da(){return!0}function Y(){return!1}function Ta(){try{return s.activeElement}catch(a){}}function Ua(a,b){return d.nodeName(a,"table")&&d.nodeName(11!==b.nodeType?b:b.firstChild,
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.type);b?a.type=b[1]:a.removeAttribute("type");return a}function Ea(a,b){for(var c=0,d=a.length;c<>
d;c++)r.set(a[c],"globalEval",!b||r.get(b[c],"globalEval"))}function Va(a,b){var c,f,e,g;if(1===b.nodeType){if(r.U(a)&&(g=r.l(a),c=r.set(b,g),g=g.ha))for(e in delete c.handle,c.ha={},g)for(c=0,f=g[e].le
ngth;c<>f;c++)d.event.add(b,e,g[e][c]);C.U(a)&&(e=C.l(a),e=d.extend({},e),C.set(b,e))}}function v(a,b){var c=a.getElementsByTagName?a.getElementsByTagName(b||"*"):a.querySelectorAll?a.querySelectorAll(b|
|"*"):[];return void 0===b||b&&d.nodeName(a,b)?d.t([a],c):c}function Wa(a,b){var c=d(b.createElement(a)).ob(b.body),
f=q.mc?q.mc(c[0]).display:d.c(c[0],"display");c.detach();return f}function Xa(a){var b=s,c=Ya[a];c||(c=Wa(a,b),"none"!==c&&c||(T=(T||d("<>iframe frameborder='0' width='0' height='0'/>")).ob(b.documentEle
ment),b=T[0].contentDocument,b.write(),b.close(),c=Wa(a,b),T.detach()),Ya[a]=c);return c}function U(a,b,c){var f,e,g=a.style;(c=c||ka(a))&&(e=c.getPropertyValue(b)||c[b]);c&&(""!==e||d.contains(a.ownerDoc [...]

By employing this kind of tool, your development team can work with clear,
fully commented and indented versions of your source code, while end users
get a much shorter version that's optimized for speed – a win-win situation!

Compress CSS and HTML

Your website consists not only of JavaScript, but also CSS rules and HTML
code, so to round things out let's see how to compress such content. YUI
Compressor, which we already looked at for JavaScript, can work with CSS
files too. I got one of OpenLogic's own CSS files, which is 22K in size and
about 1,400 lines long, and ran java -jar yuicompressor-2.4.8.jar wazi.css -o
wazi.yui.css. That got the file down to 17K, a 25% size reduction, in a
single extra long line.
.PreviewPanel{border-right:silver thin solid;border-top:silver thin solid;border-left:silver thin solid;border-bottom:silver thin solid}.linksubmission{border:solid 0 red;font:normal 11px Tahoma,Arial,V
erdana,sans-serif}.linksubmission IMG{border:solid 0 red !important}.linksubmission A{border:solid 0 red !important;text-decoration:none !important;font:normal 11px Tahoma,Arial,Verdana,sans-serif}.Grid
Header_Monochrome a:visited,.GridHeader_Monochrome a:hover{color:white !important;font:bold 11px Tahoma !important}.GridPager_Monochrome a:visited,.GridPager_Monochrome a:hover{font:normal 11px Tahoma !
important}.popupHelpTitle{padding-bottom:5px;font-weight:bold;color:black}.nostyle{border:0 solid red !important}.nostyleimg{border:0 solid red !important}.CommandItem{background-color:Transparent;backg
round-image:none}.Grid{border:1px solid #7c7c94;background-color:#fff;cursor:pointer}.HeadingRow{background-color:#e2e2e2}.HeadingCell{background-color:#e2e2e2;border:1px solid #fff;border-right-color:#
b5b5b5;border-bottom-color:#b5b5b5;padding:3px}.HeadingCellText{font-family:verdana;font-size:10px;font-weight:bold;text-align:left}.DataRow{background-color:#fff}.DataCell{cursor:default;padding:3px;bo
rder-right:1px solid #eae9e1;border-bottom:1px solid #eae9e1;font-family:verdana;font-size:10px}.EditDataCell{padding:0 !important;background-color:#e2e2e2;border-width:0 !important}.EditDataField{paddi
ng:0;padding-left:1px;font-family:verdana;font-size:10px;height:20px;width:98% !important}.DataRow td.FirstDataCell{padding-left:3px}.SelectedRow{background-color:#ffeec2}.SelectedRow td.DataCell{cursor
:default;padding:2px;padding-left:3px;padding-bottom:3px;font-family:verdana;font-size:10px;border-bottom:1px solid #4b4b6f;border-top:1px solid #4b4b6f;border-right:0}.SelectorCell{background-color:#e2
e2e2;border:1px solid #fff;border-right-color:#b5b5b5;border-bottom-color:#b5b5b5}.GridFooter{cursor:default;padding:5px}.GridFooter a{color:Black;font-weight:bold;vertical-align:bottom} [...]

I also tried two online utilities: CSS Minifier[17] and CSS Compressor[18].
The former can be used from the command line or as a web service by doing a
POST request. The latter doesn't offer that option but includes extra
optimizations, such as changing "0px" to "0," or "#FFFFFF" to "#FFF," and
even "#808080" to "gray" (but "black" to "#000"!) so it goes after every
possible byte to be reduced.

For HTML code, htmlcompressor[19] can minify HTML and XML source, and is
available as a command-line Java jar file for local usage. It has a large
number of available options; type java -jar htmlcompressor-1.5.3.jar --help
to check them out. If you are undecided as to which options use, try the -a
option, which produces a nice analysis that can help indicate which
command-line options you should use. I tested it with the OpenLogic HTML file
I used in my deflate tests by using the command java -jar
htmlcompressor-1.5.3.jar wazi.html -a. I got the following report:
================================================================================
Setting          | Incremental Gain |    Total Gain    |  Page Size   |
================================================================================
Compression disabled      |         0 (0.0%) |         0 (0.0%) |       75,462 |
All settings disabled     |        79 (0.1%) |        79 (0.1%) |       75,383 |
Comments removed          |     2,042 (2.7%) |     2,121 (2.8%) |       73,341 |
Multiple spaces removed   |     2,492 (3.4%) |     4,613 (6.1%) |       70,849 |
No spaces between tags    |       457 (0.6%) |     5,070 (6.7%) |       70,392 |
No surround spaces (min)  |         0 (0.0%) |     5,070 (6.7%) |       70,392 |
No surround spaces (max)  |         4 (0.0%) |     5,074 (6.7%) |       70,388 |
No surround spaces (all)  |       147 (0.2%) |     5,221 (6.9%) |       70,241 |
Quotes removed from tags  |     1,101 (1.6%) |     6,322 (8.4%) |       69,140 |
<>link> attr. removed      |        95 (0.1%) |     6,417 (8.5%) |       69,045 |
<>style> attr. removed     |         0 (0.0%) |     6,417 (8.5%) |       69,045 |
<>script> attr. removed    |       942 (1.4%) |     7,359 (9.8%) |       68,103 |
<>form> attr. removed      |         0 (0.0%) |     7,359 (9.8%) |       68,103 |
<>input> attr. removed     |        30 (0.0%) |     7,389 (9.8%) |       68,073 |
Simple boolean attributes |         0 (0.0%) |     7,389 (9.8%) |       68,073 |
Simple doctype            |       106 (0.2%) |     7,495 (9.9%) |       67,967 |
Remove js pseudo-protocol |         0 (0.0%) |     7,495 (9.9%) |       67,967 |
Remove http protocol      |     1,025 (1.5%) |    8,520 (11.3%) |       66,942 |
Remove https protocol     |        36 (0.1%) |    8,556 (11.3%) |       66,906 |
Compress inline CSS (YUI) |       440 (0.7%) |    8,996 (11.9%) |       66,466 |
Compress inline JS (YUI)  |     1,404 (2.1%) |   10,400 (13.8%) |       65,062 |
================================================================================

Each consecutive compressor setting is applied on top of previous ones.
In order to see JS and CSS compression results, YUI jar file must be present.
All sizes are in bytes.

Given this information, you can decide on the actual parameters to use when
compressing the HTML file. A nice touch is that htmlcompressor can work with
YUI Compressor or Closure, and then compress whatever JavaScript is present
in your HTML, for extra savings.

I also tried out Compress HTML[20] and HTML Compressor[21], two online tools.
These are meant to be used online, but the latter project also offers a way
to install its code as an inhouse private service[22]; for security reasons,
that seems more interesting. The code it produced is certainly more compact:
<>!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<>html xmlns="http://www.w3.org/1999/xhtml" xmlns:fb="http://ogp.me/ns/fb#">
<>head id="Head">
<>script type="text/javascript">window.hubspot={splitTimes:{preHead:new Date()}};<>/script>
<>meta id="MetaDescription" name="description" content="Open source software technical resources discussing scanning, governance, support and more."><>meta id="MetaKeywords" name="keywords" content="Open Source Articles, Open Source Tutorials, Open Source Training, Open Source Software Support"><>meta id="MetaCopyright" name="copyright" content="Copyright (c) 2014"><>meta id="MetaGenerator" name="generator" content="HubSpot "><>meta id="MetaAuthor" name="author"><>meta id="OGTitle" property="og:title" content="Wazi: Open Source Articles, Tutorials and Licensing Information"><>meta id="OGUrl" property="og:url" content="http://www.openlogic.com/wazi/"><>meta id="OGDescription" property="og:description" content="Open source software technical resources discussing scanning, governance, support and more."><>style id="StylePlaceholder" type="text/css"><>/style>
<>script type="text/javascript" src="http://www.openlogic.com/sw/website/web-all.js?v=10"><>/script>
<>link rel="Stylesheet" href="http://www.openlogic.com/sw/website/web-all.css?v=10" />
<>link id="_Portals__default_Skins_Duxbury_" rel="stylesheet" type="text/css" media="screen" href="http://www.openlogic.com/Portals/_default/Skins/Duxbury/skin.css" /><>link id="PORTAL_CSS_172122" rel="stylesheet" type="text/css" media="screen" href="http://www.openlogic.com/Portals/172122/custom.css" /><>link rel="apple-touch-icon-precomposed" media="screen" href="http://www.openlogic.com/Portals/172122/images/iOS-57px.png" /><>link rel="apple-touch-icon-precomposed" sizes="72X72" media="screen" href="http://www.openlogic.com/Portals/172122/images/iOS-72px.png" />
<>!--[if IE]>
<>link href="http://www.openlogic.com/Portals/172122/PIE-HTC/ie.css" rel="stylesheet" type="text/css" />
<>![endif]--> [...]

The compressed HTML code is about 10% shorter.

Note that with all these tools, if your site's HTML code is generated by a
script, a compressor won't be able to compress it effectively.

In conclusion

As you can see, you can take advantage of several ways to reduce file sizes
and in effect speed up your web server. The sum of all compression functions
– server, JavaScript, CSS, and HTML – produces smaller data transmissions and
faster response times. Apply them, and your users will thank you for it!
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[image 23][image 24]

Links:
[1]: http://developer.yahoo.com/performance/rules.html#minify (link)
[2]: http://olex.openlogic.com/packages/apache (link)
[3]: http://olex.openlogic.com/packages/jquery (link)
[4]: https://api.jquery.com/jQuery.getScript/ (link)
[5]: http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.3 (link)
[6]: http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.11 (link)
[7]: http://en.wikipedia.org/wiki/MIME (link)
[8]: http://yui.github.io/yuicompressor/ (link)
[9]: http://yuilibrary.com/ (link)
[10]: http://jquery.com/download/ (link)
[11]: http://javascript-minifier.com/ (link)
[12]: http://dean.edwards.name/packer/ (link)
[13]: http://jscompress.com/ (link)
[14]: http://www.crockford.com/javascript/jsmin.html (link)
[15]: https://developers.google.com/closure/compiler/ (link)
[16]: http://dl.google.com/closure-compiler/compiler-latest.zip (link)
[17]: http://cssminifier.com (link)
[18]: http://www.csscompressor.com/ (link)
[19]: https://code.google.com/p/htmlcompressor/ (link)
[20]: http://www.textfixer.com/html/compress-html-compression.php (link)
[21]: http://htmlcompressor.com/compressor/ (link)
[22]: http://htmlcompressor.com/services/#private-use (link)
[23]: http://track.hubspot.com/__ptq.gif?a=172122k=14&bu=http://www.openlogic.com/wazi/&r=http://www.openlogic.com/wazi/bid/336187/Compress-your-web-pages-for-better-performance&bvt=rss (image)
[24]: http://feeds.feedburner.com/~r/openlogic/wazi/~4/t-c4dunv1IQ (image)

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How to compress webpages on the server RS Wood  <rswood@therandymon.com> - 2014-02-28 20:05 +0000

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