Cache

Cache

Web caching is the caching of web documents (e.g., HTML pages, images) in order to reduce bandwidth usage, server load, and perceived "lag". A web cache stores copies of documents passing through it; subsequent requests may be satisfied from the cache if certain conditions are met.

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Firefox Add-ons for Web Developers

Advanced Web Development by AskApache is a Firefox Collection I created since I’m always trying new Addons out and using multiple computers and I wanted a quick and easy way to install my favorite’s and keep a running list. Firebug, YSlow, LastPass, and Web Developer are the only ones I always use regularly.

I like the idea of the last.fm but it’s not as powerful as the site, which is awesome. Lately listening to Kings of Leon Radio…

· addons  ·  RSS | 8:14 PM

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Optimizing Servers and Processes for Speed with ionice, nice, ulimit

To prepare for several upcoming articles on AskApache that are focused on optimizing Servers and Sites from a server admin level, here is an article to introduce the main tools that we will be using. These tools are used to optimize CPU time for each process using nice and renice, and other tools like ionice are used to optimize the Disk IO, or Disk speed / Disk traffic for each process. Then you can make sure your mysqld and httpd processes are always fast and prioritized.

· processes  ·  RSS | 1:41 AM

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Windows Optimization – Intense Part II

If you ever wanted to know the best way to defragment and speed up your Windows-Based PC, I mean you really wanted to know, here is the 2nd part to my article on Windows Speed Optimizing that details the process I have found works really well. Definately not a quick process, and certainly not the best ever, just my best ever and one that you only have to do once to get the benefits.
This article has a lot of incredibly useful (and FREE) tools I recommend, which you can grab and use without reading the article..

· HD Tune  ·  RSS | 9:42 AM

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Advanced WordPress wp-config.php Tweaks

The bottom line for this article is that I want to make WordPress as fast, secure, and easy to install, run, and manage because I am using it more and more for client production sites, I will work for days in order to solve an issue so that I never have to spend time on that issue again. Time is money in this industry and that is ultimately (time) what there is to gain by tweaking WordPress.

Note: I spent no time on readability, this is primarily a read the code and figure it out article.. This is for advanced users looking for a reference or discussion and for those of you looking to advance. Feedback would be great if you make it that far..

· php  ·  RSS | 3:23 AM

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mod_rewrite Fix for Caching Updated Files

Web Developers sometimes use file.ext?v=004 as a version control system to force visitors to use updated files. This is terrible. Instead link to apache-003.css and set it to be cached forever. When you change the file you just change the links to apache-004.css. That eliminates millions of bandwidth and resource robbing If-Modified-Since requests. You only need Apache with mod_rewrite, and 1-10 minutes!

· apache  ·  RSS | 9:20 AM

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An AskApache Plugin Upgrade to Rule them All

So my blog as been rather quiet for almost a year now, and very few updates if any have been released for my Password Protection PLugin, my Google 404 Plugin, and definately not for my AskApache CrazyCache plugin, which I will be releasing last… So for all of you who’ve helped me out by sending me suggestions and notifying me of errors and sticking with it… Just wanted to say sorry about that, and thanks for all the great ideas.. Well, I’ve been sticking with it as well believe it our not. I manage to get free days once in a while, and then its time to jam.

· Password Protection Plugin  ·  RSS | 1:59 PM

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DNS Round Robin Configuration using Rsync over SSH

The goal is to add the HostGator server to be an exact mirror of the z.askapache.com domain, then to add that server as a 2nd A record to my DNS zone. That way half the visitors to the size will be taking up resources and bandwidth on the HostGator server instead of mine.

Round Robin A records in DNS are intended to evenly distribute queries between each host of the same name. Using some tricks straight out of a hackers toolbox we can verify if the distribution is taking place. (It is.)

RSS | 1:46 AM

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Ultimate Htaccess Tutorial for .htaccess files

This is not an introduction to .htaccess… This is the evolution of .htaccess… The BEST, the ORIGINAL, the NEWEST, and the most HIGHEST, FLYEST .htaccess tricks I can find.

Originally known as the “Ultimate .htaccess Guide”, its changed over the years by adding new .htaccess tricks and .htaccess examples to it.. I also add my favorite .htaccess links, the best .htaccess articles on AskApache, the coolest .htaccess experiments, the Web’s best .htaccess hacks, and update this article on the regular.

· htaccess file  ·  RSS | 9:05 AM

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.htaccess Plugin Blocks Spam, Hackers, and Password Protects Blog

Well what can I say, other than this is sooo DOPE! Here is a list of the modules this plugin (version 4.7 unreleased) will automatically detect. I compiled the list myself using every module included with any default Apache installation for ALL the versions listed below, 1.3 to 2.2+

Want to know something else I’m including in this plugin? For each and every module that is detected, this plugin can then detect ALL of the modules .htaccess Directives! For instance, RewriteRule, AccessFileName, AddHandler, etc.. are each a directive belonging to a module that is allowed to be used from within .htaccess files.

Talk about sick.. these tricks have the diamond disease!

RSS | 10:18 AM

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.htaccess trick to show Alternate CSS file based on IP

This past week I updated my sites apache.css file for a site-redesign. I wanted to make changes to the .css file that only I could see, so that my regular traffic and site-visitors would still see the old version. Here’s the elegant solution I came up with using .htaccess and mod_rewrite that works so well I’m sharing it with all you wonderful and incredible people reading my blog :)

RSS | 5:17 PM

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Optimize a Website for Speed, Security, and Easy Management

Learn how to setup, configure, secure, optimize, and create a low-maintenance website the AskApache way. I’m piecing together all the hacks, tricks, methods, and ideas discussed throughout this blog and all across Netdom and glueing them all together to show you how to have the most optimized, crazy fastest, and best website setup I can think of.

· compression  ·  RSS | 8:45 PM

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SEO Secrets of AskApache Part 2

This is part II of the Advanced SEO used on AskApache.com Series and describes how to control which urls are indexed by Search Engines and how to move them higher up in Search Results.

· seo  ·  RSS | 5:44 PM

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Top 3 Speed Tips for Sites using Google Analytics

Top 3 ways to speed up websites that use Google Analytics. Host Script Locally, Fix Google-Analytics Cookie Domain, and Failsafe Loading for optimum tracking statistics.

RSS | 2:31 AM

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Serve External Javascript Files locally for Increased Speed

One way I speed up AskApache.com is by downloading external third-party javascript files to host on my own server instead of externally. In addition to the obvious speed boost, this lets you configure the caching and compression settings for the files.

· ga.js  ·  RSS | 2:55 AM

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Online Tool compares Packer, JSMin, Dojo, and YUI Compressor

· compression  ·  RSS | 10:12 PM

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Fsockopen Power Plays

PHP’s fsockopen function lets you open an Internet or Unix domain socket connection for connecting to a resource, and is one of the most powerful functions available in the php language.

· socket  ·  RSS | 7:42 AM

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.Htaccess rewrites, Mod_Rewrite Tricks and Tips

htaccess rewrite / Mod_Rewrite Tips and Tricks is as glamorous as it sounds! htaccess rewrite mod_rewrite is just possibly one of the most useful Apache modules and features. The ability to rewrite requests internally as well as externally is extremely powerful.

· Rewrite  ·  RSS | 10:05 AM

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Crazy Cache WordPress Plugin Released

A WordPress plugin that caches your entire blog for WP-Cache, I love this plugin and finally released it to the public!

RSS | 1:25 AM

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Hack WP-Cache for Maximum Speed

If you desire SPEED from your WordPress blog, the #1 speed improvement comes from using the WP-Cache Plugin. If you still desire SPEED after installing the Plugin, you can modify the WP-Cache Plugin code to make your blog even faster!

· Cache  ·  RSS | 2:37 AM

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Speed Tips: Add Cache-Control Headers

Using Cache-Control headers you can specify which types of proxies can cache certain content, and how long files should be cached.

RSS | 11:53 PM

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Faster Form Submission and Processing with fsockopen

Part II: Example illustrating how to speed up GET/POST form submissions. Uses fsockopen to initiate a server-side background request to process the submitted data, so that the result page of the form is displayed to the client lightningly quick.

· speedy  ·  RSS | 11:18 PM

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Faster POST and GET Form Submissions

Just a very brief look at speeding up form submission by delegating the processing and bandwidth to your server, not your client.

· fsockopen  ·  RSS | 10:21 PM

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Preload flash .flv files into browser cache

How I was able to preload many flash flv and swf files on one of my clients sites that has a lot of online video and relatively small traffic. Their site visitors would usually watch 3-10 videos per visit and so to make the videos load almost instantly on every page I came up with a way to preload the top 10 .flv files and the swf flv player files as soon as the visitor successfully started watching the 1st video. Of course I also setup .htaccess caching on the server so that once they downloaded the files into their cache they would never request them from the server again. I was having fun with this so its pretty funky and uses some really cool combinations of javascript, swf preloader from xml, css classes to help automate it all..

· speed  ·  RSS | 10:15 AM

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Hacking WP Super Cache for Speed

A plugin built to generate static files from php+mysql for Apache to serve the way its supposed to be.. My dream. Conclusion: Needs some improvement, pretty sweet though.

· wordpress  ·  RSS | 9:41 AM

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Firefox Adsense WordPress Plugin

If your WordPress blog uses AdSense, and you love Firefox you will love this plugin. When a user downloads and installs Firefox through your referral, we’ll credit your account with up to $1.00 (more details).

· plugin  ·  RSS | 8:33 PM

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Come On and Sprite for your Website

Let me show you an example that works so well I am using it right now on my site. Every page in fact. If you are a young or up and coming web developer with skills to pay the bills, lets make the future Net fast, learn about optimization and refactoring while you still have the chance.

· css  ·  RSS | 12:56 AM

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SetEnvIf and SetEnvIfNoCase Examples

SetEnv, SetEnvIf, and SetEnvIfNoCase directives conditionally set environment variables accessible by scripts and apache based on HTTP Headers, Variables, and Request information.

· setenvif  ·  RSS | 1:36 PM

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Prevent WP-Cache from Caching index

Disable caching on WordPress index pages when using WP-Cache with this neat mod to the famously speedy cache plugin.

· speed  ·  RSS | 11:12 AM

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CSS Background Image Sprites

Using a CSS Background Image Sprite with the CSS background-position and background-image I can display all these icons: . I can even have them show up anywhere on the page!

· sprite  ·  RSS | 8:47 AM

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Speed Tips: Use Multiple SubDomains

To make your site even faster, serve certain content from different subdomains. The reason this works is amazingly cool!

RSS | 7:50 PM

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Speed Tips: Remove Last-Modified Header

If you remove the Last-Modified and ETag header, you will totally eliminate If-Modified-Since and If-None-Match requests and their 304 Not Modified Responses.

· last-modified  ·  RSS | 11:56 PM

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Speed Tips: Turn Off ETags

By removing the ETag header, you disable caches and browsers from being able to validate files, so they are forced to rely on your Cache-Control and Expires header.

RSS | 11:54 PM

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Speed Tips: Add Future Expires Headers

A first-time visitor to your page will make several HTTP requests to download all your sites files, but using the Expires header you make those files cacheable. This avoids unnecessary HTTP requests on subsequent page views.

· apache  ·  RSS | 11:24 PM

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Firefox, Firebug, and yslow are REQUIRED

A lot of the past and upcoming articles on AskApache are focused on speeding up a server or website, or just making things more efficient. I’m starting several speed tip articles that require the following 3 programs if you want to follow along, that is… if you can keep up! ;)

· firebug  ·  RSS | 4:07 PM

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Speed Tips: Turn On Compression

Use the Apache module mod_deflate to compress your static .css and .js files, speeding your site up like crazy!

· htaccess  ·  RSS | 4:55 PM

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Top methods for Faster, Speedier web sites

High Performance Web Site list of the best and newest methods to make web pages super fast using caching, compression, cache-control, etc.

· ajax  ·  RSS | 4:40 PM

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Apache Variable Fun in htaccess

Server and Environment Variables are used by The Apache HTTP Server by provides a mechanism for storing information. This information can be used to control various operations such as logging or access control.

· environment  ·  RSS | 10:10 AM

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Speed up your site with Caching and cache-control

Caching with .htaccess and Apache will take your website and your web skills to the next level. This is some technical and advanced methods condensed to simple htaccess code examples for you.

RSS | 10:06 AM

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htaccess rewrite, htaccess

Comprehensive .htaccess example file with advanced examples in 1 htaccess sample skeleton .htaccess file with the very best apache htaccess examples… Updated frequently based on detailed info from the Apache htaccess tutorial.

· apache  ·  RSS | 10:15 PM

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Speed Up Sites with php Caching

This explains the basic methods to get started caching with php headers

RSS | 11:02 AM

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