Sends profiling information as a Server Timing HTTP header to the browser
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Server-Timing in action in Chrome

Small Magento 1 example extension that shows how Varien_Profiler information can be sent to the browser using the Server-Timing HTTP header so profiling info can be displayed e.g. by Google Chrome.

Note: this is only an example, so don't use it in production! As soon as Varien_Profiler::getTimers() returns values they will be sent in the browser, no checking of IPs or similar going on.

Thanks Christian Münch for the inspiration!


Install this extension using Composer and modman. In your composer.json, add an entry like this:

"require": {
    "mzeis/mzeis_server-timing": "v1.0.0"
"repositories": [
        "type": "vcs",
        "url": ""

Known issues

This won't work when Aoe_Profiler is enabled.

Also, at the time of writing Chrome like to truncate the string displayed in the Server Timing section.