Caching Tutorial for Webmasters
If you examine the preferences dialog of any modern Web browser (like Internet Explorer, Safari or Mozilla), you'll probably notice a 'cache' setting. This lets you set aside a section of your computer's hard disk to store representations that you've seen, just for you. The browser cache works according to fairly simple rules. It will check to make sure that the representations are fresh, usually once a session (that is, the once in the current invocation of the browser).
HOWTO: Uninstall CPANEL over SSH
The following is just a quick but detailed reference of some of the commands I used to successfully uninstall cpanel permanently. This is for advanced users of the shell. If you run a single one of these commands without fully understanding it, you will probably kill your server, lose everything on it permanently, not have a website or email for weeks.. So backup everything. FIRST. You should also contact your hosting provider support - but be prepared for some MAJOR negativity.. cpanel makes things very easy for web-hosting companies, and you are less than a drop in their bucket.
THE Ultimate Htaccess
.htaccess is a very ancient configuration file for web servers, and is one of the most powerful configuration files most webmasters will ever come across. This htaccess guide shows off the very best of the best htaccess tricks and code snippets from hackers and server administrators.
You've come to the right place if you are looking to acquire mad skills for using .htaccess files!
Get Number of Running Proccesses with PHP
Recently I had to setup a script to curl 10k urls, but it could only do 500 requests at any one time. In order to work under that limit, I created a function that returns the number of currently running processes on the machine in an extremely fast and efficient way, thus allowing the curl_multi requests to queu themselves such as GNU xargs.
Vetted – Top 3 WordPress Speed Plugins
There are so many WordPress plugins out there now that I wanted to post my favorite 3 plugins for speeding up a WP-Powered blog. These are the 3 plugins that I install for pretty much all of my WP-Powered sites, which I run about 300 now. They work together to provide a very optimized blog for speed.
DB-Cache Reloaded does something entirely different, it saves the mysql queries that are made to the WP-database, as well as the mysql results to static files, and then through php serves those cached-files instead of re-querying the mysql database. Most mysql databases are stored on separate servers, and although many are on the same local network there is a limit to how many queries, and how many connections can take place.
So DB-Cache Reloaded basically makes WP-Super Cache work alot faster when generating the cache files, and DB-Cache Reloaded helps in a number of areas un-related to WP-Super Cache, like in the admin panel. And DB-Cache without WP-Super-Cache is a joke because it still uses the application-level and php for everything. Gotta use both (or just WPSC).
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.
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.
30x Faster Cache and Site Speed with TMPFS
NOT a typo.. 30x is measurable, well-documented, and easily tested. This is what open-source is about. I haven’t had time to post much the past year, I'm always working! So I wanted to make up for that by publishing an article on a topic that would blow your mind and be something that you could actually start using and really get some benefit out of it. This is one of those articles that the majority of web hosting companies would love to see in paperback, so they could burn it.
Mod_Status tricks to View Apache Module Directives
Quick and easy method to get a list of all Apache Modules currently loaded, a list of all the directives each module provides, a list of currently used directives, etc... These directives can be used in httpd.conf and/or .htaccess files so it is definately useful to know which ones are available and which ones are currently being used.
Respond with 200 OK for 404 Not Found
What if you'd like to send a 200 OK response instead of the default 404 Not Found response using Apache .htaccess files or httpd.conf? One use would be to make sure upstream caches cache any request on an api server, as 404's are not cached.
Libcurl Error Codes
Advanced HTTP Redirection
Learn about the 7 different HTTP response codes specifically reserved for redirection. 301, 302, 303, 304, 305, and 307.
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!
Make Windows XP Blazingly Fast
Here is the basic process that I use to speed up Windows. A lot of good tips and tricks I've picked up over the past 15+ years of crashing and burning Windows that can transform your PC to be much faster than its ever been. The process focuses on freeing up RAM/Memory, freeing up your CPU/Processor, and optimizing your Hard Drive for a permanent solution.
Make sure to check out the free software I recommend at the end, installing them after this optimization process will keep your machine fast for a long time.
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.
Google: Let’s Make the Web Faster
Dealing with Mobile Visitors using Bad Browsers
Best Practices for Speeding Up Your Web Site with Htaccess
I have written more than a few articles detailing how to improve the speed of a website, and due to popular demand, this post will detail all the latest and greatest caching tricks and techniques that I utilize and love. The AskApache Best-Practices.
HTTP Status Codes
This is a big update from the last time I looked into this, when I enumerated 57 Status Codes that Apache 2.x was capable of handling. This list contains 83 Status Codes recognized by Apache. I compiled the latest 2.4.4 Apache in order to view the actual codes sent by a live server.. very cool. You can read about the newest HTTP Status Codes in RFC 6585.
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!