Magento performance, research and improvement

Magento performance, research and improvement

I made a small research regarding  Magento performance. Perhaps, you already know it, but I would like to share this with other people who probably haven’t heard about this problem.

Do you know how many HTTP requests does standard Magento  with default template make?  I have tested Magento and I’ve got very interesting info, 111 HTTP requests! I think it’s too much especially if you add a lot of new pictures, which you will use in your adjusted template. Then  the number of http requests can increase to 150! Every element requires an extra http request. Perhaps, not when the cache is full, but definitely when the cache is empty.

I used a free tool called  “Web Page Analyzer” .

I’ve got the following results: the total number of requests on this page is 111 which by their sheer number will be one of the  main causes of the web page delay.

My suggestion is to try to decrease the number of http requests to some reasonable number (about 20 – max 40) and your web page will have better performance.
First step: try to clear css file and remove some unnecessary images or try to use CSS sprites.
Second step: go to Magento admin and click: System -> Configuration -> Developer and enable next options: “Merge JavaScript Files (beta)” and “Merge CSS Files (beta)”.

Also, you can find more useful data with this free tool like: Total HTTP Requests, Total Size of page, page objects together with getting the diagnosis and some recommendations.

I hope it will help you optimize your web page.

Some interesting links:

You made it all the way down here so you must have enjoyed this post! You may also like:

Magento LightSpeed Extension – Review Ivan Lozancic
Ivan Lozancic, | 0

Magento LightSpeed Extension – Review

Site Speed – Magento community, do not panic! Toni Anicic
Toni Anicic, | 11

Site Speed – Magento community, do not panic!

Boost the speed of your Magento Stanislav Mihic
Stanislav Mihic, | 151

Boost the speed of your Magento


  1. You did not include a report after making the change, how about rerunning your tests and doing a comparison against the baseline???

  2. Wow, that would be one beast of a download. I’m very new to Magento but am finding it to be quite a bit slower on shared hosting than I had anticipated: I was hoping this post would be about improving performance.

    Previous commenter left a really good point about the secure checkout page potentially breaking if using secure checkout page.

  3. Enabling CSS merging breaks the checkout in Magento.
    Why? Because they compile the css with absolute paths, making a secure checkout page reference unsecure files (those same css files).

    Not recommended for any store that uses SSL for checkout.

Leave a Reply

Your email address will not be published. Required fields are marked *

You may use these HTML tags and attributes: <a href="" title=""> <blockquote cite=""> <code> <del datetime=""> <em> <s> <strike> <strong>. You may use following syntax for source code: <pre><code>$current = "Inchoo";</code></pre>.

Tell us about your project

Drop us a line. We'd love to know more about your project.