Live numbers: accelerated websites 3 576 saved seconds saved nerves

Features Version Comparison

OptionsDemo or Zero EditionStandard EditionExtended EditionSaaS Edition*
Combine CSS
This set of options allows to merge CSS code (even external files and inline code) into single file.
Combine only CSS included in tag <head>
Combine all CSS in tags <head> and <body>
Enable inline styles merging
Enable external styles merging
Combined CSS file name
Host for CSS file(s)
Exclude CSS file(s) from merging
Include CSS code to all combined files
Combine JavaScript
This set of options allows to merge JavaScript code (even external files and inline code) into single file.
Combine JavaScript files in <head>
Combine JavaScript files in <body>
Enable inline JavaScript merging in <head>
Enable inline JavaScript merging in <body>
Enable external JavaScript merging
Combined JavaScript file name
Host for JavaScript file(s)
Exclude file(s) from combining
Force moving combined script to </head>
Safe combine mode
Remove duplicates
Mask to merge scripts
Minify removes whitespace and other unnecessary characters. Also you can choose the tool for CSS/JavaScript minification or obfuscation.
Minify CSS files with regular expressions
Minify CSS files with CSS Tidy
Minify JavaScript files with JSMin
Minify JavaScript files with YUI Compressor
Minify JavaScript files with Packer
Minify JavaScript files with Google Compiler
Exclude the following file(s) from minify
Minify HTML
Compress HTML to one string
Remove HTML comments
Gzip compression for CSS, JavaScript, HTML and other files.
Gzip CSS
Gzip JavaScript
Gzip fonts
Check for gzip possibility via cookies
Use deflate instead of gzip for IE6, IE7
Client side cache
This set of options allows you to add certain headers which ensures that files are cached on the client-side by the browser.
Cache CSS
Cache JavaScript
Cache images
Cache fonts
Cache video files
Cache static assets
Cache HTML
Default timeout to cache HTML
Cache external files
Most of gzip and cache options can be written for your website configuration automatically.
Enable .htaccess
Place .htaccess file locally (not to Document Root)
Use mod_deflate + mod_filter
Use mod_gzip
Use mod_expires
Use mod_headers
Use mod_setenvif
Use mod_rewrite
Use mod_mime
WEBO Site SpeedUp can add a link in your blog footer back to the WEBO Site SpeedUp website. The link can be a text link, a small image link or both. Please support WEBO Site SpeedUp by enabling this.
Add a link to WEBO Site SpeedUp
Add a WEBO Site SpeedUp image
Text for backlink
Styles for backlink placement
Add <!--WSS--> to HTML documentForced to ON
Add load time counter
A/B testing
Performance Options
Usually WEBO Site SpeedUp checks if files have been changed since the last access to the page. And uses retrieved information to give existing file from cache or generate a new one. It’s not good from the server side optimization point of view so you can disable this check.
Ignore file modification time stamp (mtime)12 
Don’t check cache files existence
Cache version number
Do not use regular expressions
Uniform cache files for all browsers
Restore CSS properties
Days to store cache files
Separate HTTPS cache from HTTP
File system cache engine
Memcached cache engine
APC cache engine
X-Cache cache engine
Scale HTML images
It is possible to store CSS Background images in data:URI format. This will cut down even further on the amount of HTTP Requests.
Apply data:URI
Apply mhtml
Maximum data:URI size
Maximum mhtml size
Exclude files from data:URI
Exclude files from mhtml
Separate images from CSS code
CSS Sprites
It is possible to store CSS Background images as CSS Sprites. This can significantly reduce the number of HTTP requests during website load.
Apply CSS Sprites
«Aggressive» combine mode for CSS Sprites
Exclude IE6
Maximum width and height of images
Maximum width and height of final sprites
Combine HTML images
Maximum width and height of HTML images
Combine images for the current page only
Exclude the following files from CSS Sprites
Include only the following files to CSS Sprites
Add free space for CSS Sprites
Detect proper format automatically
Prefer JPEG format
Server Side Caching
This option allows to cache generated HTML output and prevent a lot of server-side work to generate it. Note, with this option all server-dependent logic will be disabled. All pages will be completely static. Please turn it on only if you are completely sure.
Cache generated HTML files25 
Default HTML cache timeout
Time to cache cart in e-store
Only cache first n bytes of content (flush early)
Flush content size
List of parts of URLs to exclude from server side caching
List of USER AGENTS (robots) to add to caching
List of COOKIE to exclude from server side caching
List of GET parameters to exclude from server side caching
Extreme mode
Delete expired files from cache
SQL caching
WEBO Site SpeedUp can cache SQL queries (for CMS supported on native level) what increases generation time for all website pages.
Cache DB queries12 
Queries execution time (ms)
DB cache timeout (s)
Exclude table(s) (separated by space)
Unobtrusive JavaScript
Unobtrusive JavaScript will be loaded right after all content has been shown in a browser (on DOMloaded event). This can significantly increase website load speed.
Basic mode
Advanced mode
Advanced mode + inline code
Include combined JavaScript file before </body>
Move all JavaScript code to </body>
Move JavaScript widgets calls before </body>
Move counter calls before </body>
Move advertisement calls before </body>
Defer iframes loading
Unobtrusive Configuration
Load images on DOMReady event
Pre-load CSS or JavaScript files
Pre-load pages
WEBO Site SpeedUp can also add multiple hosts to serve static files (images)
Distribute images
Regular Expression
Check hosts’ availability automatically
Allowed hosts
Distribute CSS files
Distribute JavaScript files
Exclude the following files from distribution
Manual setup
Current CDN (
Coral CDN (
FTP access to upload files
Host available via HTTPS
WEBO Rocket
Innovative technologies to make any type of website pages extremely faster.
Enable WEBO Rocket for CSS
Enable WEBO Rocket for JavaScript
Put styles first
System Settings
There are also a few of system settings that offers extra security for your WEBO Site SpeedUp installation.
Protect WEBO Site SpeedUp installation via htpasswd
Login to protect WEBO Site SpeedUp with .htpasswd
Username (to access via HTTP Basic Authorization)
Password (to access via HTTP Basic Authorization)
Exclude URL from optimization
Additional tools
WEBO Site SpeedUp has additional optimization tools and possibilities to improve your website loading speed.
Plugins API
Static Gzip
Image Optimization
CDN Synchronization
CSS/JavaScript Files Minify

* Symbol indicates daily expences for using corresponding option in SaaS Edition of WEBO Site SpeedUp. Learn more about SaaS Edition features.