WP Super Cache can help optimize your WordPress website. WP Super Cache will enable your website to load faster and use less server resources. You can install WP Super Cache by first logging into your WordPress Dashboard.

  1. Once you have logged into your WordPress Dashboard, click on Plugins on the left menu pane. Then click Add New.
  2. Use the search box, and search for "super cache".
  3. After the search is finished, you can locate the plugin and click "Install Now"
  4. Once the plugin installation is complete, click on "activate Plugin"
  5. You will see a "red box" to remind you to enable WP Super Cache. click on the "Plugin Admin Page".
  6. Enable caching by clicking on the button next to "Caching On" and then click "Update Status"
  7. On the same screen as above, click on the "advanced" tab.
  8. Please select the "Use mod_rewrite to serve cache files" option and click "update status"
  9. Next you should receive this message below.
  10. Scroll down the page and you will will a large yellow box. Click on the button labeled "Update Mod_Rewrite Rules" at the bottom of the box. 
  11. Once you click the box in the above screenshot it will change to green and be labeled "Mod rewrite rules updated".

You have two different options to verify that WP Super Cache is installed correctly. The first way is to look at the source code of your website. The source code will show that the webpage was successfully cached. In most web browsers you can right click within the WordPress website and select "View Page Source". Look at the bottom of the page and you will see the following lines of code.


The second way to verify if super cache is working correctly and installed is checking the ,htaccess file. You can access the .htaccess file using a FTP client or through file manager in cPanel. In the same folder that contains your WordPress site, look for the .htaccess file and open it. In the .htaccess file you should see code similar to this.


Once you have confirmed that WP Super Cache is installed and functioning correctly, you're done!

Please check the next article on Optimizing WordPress with W3 Total Cache plugin. If you missed our previous article, please see the Plugins for Advertising tutorial. For more information on this course please visit Recommended Plugins.

Continued Education in Course 201: Recommended WordPress Plugins
You are viewing Section 6: Optimizing WordPress with WP Super Cache Plugin
Section 5: Plugins for Advertising
Section 7: Optimizing WordPress with W3 Total Cache plugin
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n/a Points
2014-07-16 3:14 pm

Can someone help me look into WHY my site is still failing with the GTMetrix report ?

I installed WP Super Cache and followed these instuctions and its working, says so on the bottom of my webpage like you said...but I am still failing on report.


21,370 Points
2014-07-16 6:58 pm
Hello Paul,

Sorry that you're having problems with the Super Cache settings. If you click on each of the items in the GT metrix report, you get a break down and explanation about each reported item. Your page is quite simply loading a A LOT of items (20 MB +), so it's going to be a little hard to improve the score. There are advanced settings in the WP Super Cache program that you can set, but you're going to need to become more familiar with using the caching tool. Here's a more complete tutorial for making optimal settings in WP SuperCache. You should be able find some optimization improvements between that tutorial and the information that Gtmetrix gives you. Please understand though, that sometimes the best way to optimize a large site is by breaking down how much you are presenting at one time. Your site gets a 'B' on the GTmetrix page speed report at this point, and that really is not bad. I also checked it on my iPad mini and it appears to take a little time -but only because it's trying load up the many pictures that you have showing on the front page.

Hope that helps to give you some information on improving the optimization for your site.

Kindest regards,
Arnel C.
n/a Points
2014-07-23 12:36 pm

I am a current InMotion customer using WordPress. I started using this plugin and set it up just as recommended step by step and it's working. Around the same time I started having some trouble with my front page showing without some of its formatting and in full page view without its sidebar. When you'd click on a post listed there it would show with everything the way it should be. I tested plugins by shutting them off and on but couldn't pinpoint the problem.

Then the front page was showing correctly while a few pages I clicked on showed the stripped down full view (but not all pages). All pages show correctly inside the dashboard. I have to log out to see the problem. I reinstalled WordPress yesterday and it seemed to help. Everything showed correctly in three different browsers. Then today it was having problem with the front page again. I just discovered in the bug section of the Wp-Super Cache plugin this note:

"In very rare cases two problems may arise on some blogs:

  1. The front page may start downloading as a zip file.
  2. The wrong page is occasionally cached as the front page if your blog uses a static front page and the permalink structure is /%category%/%postname%/.

I’m 99% certain that they aren’t bugs in WP Super Cache and they only happen in very rare cases but you can run a simple check once every 5 minutes to verify that your site is ok if you’re worried. You will be emailed if there is a problem."

This sounds like it might be the problem I am having. Does anyone know this plugin well enough to know if there is some way to configure it if you're having this problem. I have been reading in the Wordpress forums, and plugin forums, but I can't find anything.

Thanks for your help.



11,156 Points
2014-07-23 12:46 pm
Usually, issues like this are due to caching in which clearing your browser cache should allow the page to show exactly as you have set it up. Could you provide me with the exact site that you are having trouble with to see if I can replicate the issue?
n/a Points
2014-07-23 12:56 pm

Yes, thanks, the site is the one mentioned above peterdmallett.com I was trying to figure it out a good part of the day yesterday and cleared the browser several times trying it out on different browsers as well. Although at that time I had no idea what the problem might be.

Thanks for you help.

11,156 Points
2014-07-23 1:15 pm
It looks like your site is displaying as if it were viewed in a mobile browser. Are you using any plugins that could interfere with your layout?
n/a Points
2014-07-23 1:45 pm

This is what I was thinking, but I couldn't figure out why only on certain pages. I am using the following plugins:

About Me widget, comment luv, HC-Custom wp-Admin url, Jetpack, Limit Log-in Atempts, PC Hide Pages, Revive Old Posts (which had a recent update) Wordpress CEO, WP-Spam Sheild, WP Mailto Links-manage email links, WP-Super Cache, and Shareaholic.

I also use a find and replace plugin and click to tweet that I turn on only when I need it. I'm trying not to have too many plugins.

I appreciate any suggestions, I wasn't expecting such quick responses.

9,968 Points
2014-07-23 2:13 pm
Hello Peter,

I'm not currently seeing the issue on your site that you've described so it's a bit hard to guess at exactly what might be going wrong.

It sounds like possibly something to do with your CSS style sheets not being properly loaded in with the cached page. If it is something to do with WP Super Cache conflicting with another one of your plugins you might want to go to Settings > WP Super Cache and then go to the Advanced tab and make sure you're using these settings:

Cache hits to this website for quick access. (Recommended)
Use mod_rewrite to serve cache files. (Recommended)
Clear all cache files when a post or page is published or updated
Extra homepage checks. (Very occasionally stops homepage caching)

If you're still seeing the issue after clearing your local browser cache, you might also want to clear the WordPress cache in WP Super Cache by going to Settings > WP Super Cache then clicking on Delete Cache.

If you're still having issues, you could try to disable all your other plugins and then re-enable them one at a time till you find a culprit. Or you might also be interested in giving the W3 Total Cache plugin a try instead and see if that is also giving you issues.

Please let us know if you have any further questions at all.

- Jacob
2014-07-23 3:22 pm
Hi Jacob, I believe you solved the problem I was having. The last two items I did not have checked. I checked them and everything on the home and other pages seems to be working correctly now. Thanks for also letting me know about how to clear the Super Cache if needed. Much appreciated.
9,968 Points
2014-07-23 3:25 pm
Hello Peter,

Awesome, glad that seems to be working for you! If you continue to have issues like I said you might want to give W3 Total Cache a look as it's a more robust caching plugin and might not encounter the same problems, but hopefully with these new settings WP Super Cache will do the trick for you!

- Jacob

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