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Questions tagged [webpagetest]

WebPageTest refers to performance testing of web pages by usage of the infrastructure of webpagetest.org or similar self-hosted infrastructure.

Webpagetest(WPT) was created originally at AOL by Patrick Meenan in 2008 and is now backed by prominent technology companies like Google. WebPageTest(WPT) is the swiss army knife for measuring your site's performance. WPT is FREE and open sourced under the free BSD license!

At its most basic level, WPT measures how a particular web page loads. As the page loads, a number of useful metrics are captured, cataloged and then displayed in various charts,graphs and tables which are useful for spotting performance delays. These metrics and visuals can help solving important performance related issues. WPT has tools to analyze lot of things and some important metrics are the platform to use (desktop vs mobile), browser of interest (Chrome, Firefox, IE, etc), and even the geographic location. There are lot of other tools available as well.

More information can be found in their official site.

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How to bundle html, js and css in one html file with webpack?

I have built my application with webpack merging all css into one file, all js into one file and having one html for my SPA app. When I do my testing with webpagetest most of my issues is not with loading the files but loading them as individual…
Kannaiyan
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How to submit web performance testing results with WebDriver to WebPageTest?

I want to automate performance testing of web app with Selenium Webdriver in Python. I followed the suggested solution at the GTAC talk Web Performance Testing with WebDriver Here is the example of the code in Java and Python. But in Python example…
Max Voitko
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WebPageTest complaining about not caching static resources even though I have caching enabled

I am testing my website on webpagetest.org. It gives me a and then goes on to give this list: Leverage browser caching of static assets: 63/100 WARNING - (2.0 hours) - http://stats.g.doubleclick.net/dc.js WARNING - (5.5 days) -…
morpheus
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How do I programmatically login through Auth0 Lock interface?

I'm trying to write a WebPageTest custom script that involves programmatically logging into my web app's Auth0 Lock interface as the first step but haven't been able to get it working. I set up a private WebPageTest server to get a closer look at…
jlin
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WebPage test scripting with angular app

I'm using webpagetest.org to do performance testing. To reach the page I need to test, I need to enter some text and click on the next button as I cannot reach that page directly. This is the link to the sample…
Aditya Mukesh
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Git hub file path in batch command-Jenkins

Im implementing Webpagetest api using script insteads of passing url along with the command. Instead of webpagetest test "www.example.com" -k XXXXXXXXXXXXXXXX I use webpagetest test…
shey
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Understanding colors in WebPageTest waterfall view

I'm using webpagetest.org and am struggling understanding the meaning of the different colors in WebPageTest waterfall view. As you can see in the image below, each type (HTML, JS, CSS, etc.) has two colors – the former being paler than the latter.…
Alex
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Starting WebPageTest.org's test with bookmarklet

I'm trying to start a webpagetest.org's test with a bookmarklet. My bookmarklet code is: javascript:void(window.open(%27https://www.webpagetest.org/?url=%27+window.location.href,%27_blank%27)); It opens a webpagetest.org, fills the current page's…
Evgeniy
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First Byte greater than Start Render. Is this possbile?

I have a private instance of WebPagetest. Sometimes I see that First Byte more than Start Render metric. How is this possible? What should I investigate to verify that test is not bad?
automateEverything
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Why does the time for “downloading” content of a file is high

As I have tested in webpagetest (screenshot below) , I have seen the content download time for js and images are high. If there is any reason behinf it or else I amdoing something wrong. I have integrated hook_css_later to make preprocess false and…
Mainak Ray
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How can I start multiple http requests at the beginning of page load?

Here is an image of my recent webpage test: Is there any way to start as many http requests as early as possible? For example, the google font file requests start very late. Similarly, I want to move the jQuery request to as early as the…
Vineet Sharma
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serve compressed file with no file extension with .htaccess

I have a website chat plugin script that I've made a local copy of, and uploaded to our website: www.example.com/js/default. webpagetest.org reports this file is uncompressed. In .htaccess, we have: AddType x-font/woff…
Steve
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Performance issue because of Google Adwords

I want to improve performance of website, and currently I got stuck with Google Adwords problem. I have already speeded it (website) up from ~4 seconds to ~1.8 seconds but now webpagetest.org run on this website looks that: Step by step (excluding…
Michał Kutra
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How to upload the video generated by WebPageTest

I use WebPageTest to analyze web site quality. In interactive mode, the activity can be recorded and viewed later in flv video format. Is it possible to upload this video through the WebPageTest rest api ?
D Cruette
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Running headless chrome on Ubuntu

I am trying to run headless Chrome using the following command on Ubuntu. sudo -u test xvfb-run --server-args='-screen 0, 1024x768x16' google-chrome -start-maximized --disable-fre --enable-benchmarking --metrics-recording-only…
station
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