Documentation

Cache Settings

Cache settings of plugin helps you to add expires headers to various types of resources.

For adding expires headers to any resource type you need to select box of infront of that resource type and switch on main category of that resource.

for example:- if you want to enable expires headers for png file types

1. you need to check checkbox infront of png.
2. enable switch Image.
3. After that you need to specify expire time in days for that perticular category in this case Image.
4. Hit Submit button at the end to save changes.

Minify Settings

Plugin offers minification facility which reduce total page size and also reduce http requests on server for loading page which helps to improve performance of website and results into speed optimization.

CSS Minification

Enable CSS Settings: this option help you to enable start processing and merging of css files. Along with that it will act as switch to enable of disable all following CSS related settings.

Enable CSS Minifcation: It will minify all non minified css files before merging them to file.

Inline Footer CSS:  It will inline all small css files which is less than 20 kb and listed as footer css files.

JS Minification

Enable JS Settings: this option help you to enable start processing and merging of js files. Along with that it will act as switch to enable of disable all following js related settings.

Enable JS Minifcation: It will minify all non minified js files before merging them to file.

Enable Deferring Processed JS Files: It will start defer parsing of all processed js files.

Skip Deferring jQuery: It will stop deferring jQuery files because in some themes and plugins deferring jQuery cause issue so better to avoid deferring jQuery files.

Other Options

Enable HTML Minification: This option will enable minification of HTML and hence reduce size of data require to load page.

Inline Google Fonts: This option inline google fonts and hence reduce number of server request which help page to load faster.

Escape Admin Users in Minification Process: This option is specially provided for fixing backend and frontend editior which can be damaged if used along with minification. So this option will help plugin to identify that when it needs to load minified processed files and when to not.

Prevent these resources from processing during minification process:  There will be chances that some of files are important to theme and plugins you are using and if we add them to minifaction process it will brake UI of website so we need to avoid them during minification process. You need to comma seprated list of files to prevent them processing during minification process.

External Resources

This feature helps to add expires headers to most of external resources (resources not hosted on current website hosting or third party resources). By doing so we can improve website performance by lowering number of external resources require to load website. It will also refelect as speed improvement in webslite loading time.

Here are details how you make this work.

1. First time when you open “External Resources” Tab you may not see any external resources. For that follow the steps for finding external resources on home page. Open home page of website in new tab. once home page is completed loading then refresh the current plugin setting page.
2. now you have list of external resources on home page of website.
3. Once you have resources list you can now cache them for adding expires headers. So click on button Start/Refresh Cache External Cache. It will cache all external resources.  Once resources cache successfully every resources have “✓” mark at right of resources given name by code. If any resource not have “✓” mark in this case hit Start/Refresh Cache External Cache again it will cache all resources again unless there is issue in caching some resources.
4. Now you have 2 buttons under every external resources they are linking origional resource and cache resource. Check both files by clicking both button it will open resources in new tabs. If both are same you are ready to add expires headers to external resource by switching lever to on inline of buttons. Repeat same process for every other resources on page. If resources have differences in cached version and orional version do keep switch off and try caching resources again it may fix issue if not keep that perticular resource switch off.  Once you finish seeing all resources and choosing once which have origional and cached version same you can hit submit button to make changes saved.
5. Import Notice :-  Do not add expires headers to dynamic external resources ( resources which are frequently updating by themselves ) otherwise it may cause issue to website.
   If caching any external resource brake your website or creating problems just come back to this tab and make all resources switch to off and hit submit. It bring back website in it’s standard condition as it was at start.
   Then enable single resource at a time and check website how it functioning after checking this for all external resources you can find problem causing resource and now you can avoid it by keeping its switch to off.

Advance Settings

Plugin offers certain advance settings which help you to enhance speed of page if used in proper way. In this section of plugin settings you can  also add more type of files for adding expire header in cache settings.

Removing Version Info From Files: This will remove version info details from resources which may help to increase chances of caching file for longer period of time. Make sure you understand feature before implementing it.

Unset Entity Tags (ETags): Enabling this feature helps to unset entity tags or Etags for resources which improve cache performance and lead to better speed optimization.

Enable HTTP(Gzip) Compression: Enabling this feature help to initiate HTTP(Gzip) compression of files and content which helps to improve page loading speed of website. Before enabling this feature make sure your server supports compression or not.

Refresh Cache Periodically(beta): Enabling this feature helps to refresh browser cache periodically and helps keep cache updated on user side.You can choose refresh frequency from dropdown list below switch.

Prevent Resources from Cache: This Pro feature help to prevent specific resources from caching on browser. Enter list of resources you want to prevent from browser cache using comma separated list.

Add New File Types for Cache: This pro feature helps to add custom file types for adding expires headers.

1. For supporting new/custom file type other than which already provided you need Go to Advance Settings of plugin
2. Scroll down to Add New File Types for Cache.
3. Choose Proper Mime Type and File extension name without “.” at start.
   for example:– for adding .png file support you need to choose Mime type image and in file extension you need to write png  and hit submit button to save changes.
4. once this changes in advance settings are successfully saved you need to go to cache settings of plugin and check for newly added custom file type.
5. check box in front of newly added  file type and hit submit button.
6. that’s completed process for adding new/custom file type support for adding expires headers.

Please click here.  For list of mime type and custom post type(file extension).