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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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Facing issue while using WebPageTest Tool while testing my application which has MS AD Login Enabled

I am trying to do client side performance testing with WebPageTest testing tool. My application has Microsoft Login Feature. For that login one window is popping up, were i need to provide my credential. Is there any way to handle the popped up…
souvik Shome
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How to save a variable in Webpagetest script

Is there a way to save variable in a Webpagetest script? e.g. I have this javascript code that works in my developer tools: var range = document.createRange(); var sel =…
user5938020
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How to see dns-prefetch advantages?

I'm doing some performance tests for my web application and I actually don't know how to understand the webpage test results for dns-prefetch in the links. For the links where I've added link rel="dns-prefetch" I see the green part at the beginning…
diemate
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Understanding WebPageTest waterfall

I'm using WebPageTest and am struggling to understand the meaning of the different colors and why it takes so long for my images to be shown (almost 2s). Using the WebPageTest waterfall view I can see a lot of "wait". I just dunno how to read the…
TobiasM
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What to understand by loaded by in performance result

Lately i have seen high time to first byte for my sites. Most of the time it is by javascript. A test at webpagetest.org usually shows like.... URL: http://example.com/ Loaded by: http://example.com/some-kind-of-javascript.js When i remove that…
kpmrpar
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Pip will not install the WebPageTest API

I am trying to get started using WebPageTest API for batch analysis of URLs. Unfortunately I've fallen down at the first hurdle - the api does not seem to want to install. I have updated pip, I have created a fresh virtual env in case something…
IDoSeOyO
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WebPage Test Script login failing

Asking here because the WPT forums are next to useless, am having great difficulty getting WPT to login to my website prior to running a sample. For some reason the data fields are not being populated, as the screenshot that is returned shows the…
Caelaran
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Pass UrlName file path in command line while running SH file

I'm implementing https://github.com/siedi/webpagetest-influxdb .While running the run-tests.sh shell script which takes URL(of a web page) as a a parameter and i want to pass a text file which takes login information. As mentioned in -…
shey
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How to properly setup a private webpagetest instance with AWS

I'm trying to setup a private webpagetest instance with AWS. I succeed to have a running webpagetest server, but I'm struggling with agents and autoscaling. To keep things simples, I would like to always have one running agent. All my settings will…
ersefuril
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WebPagetest not filling in forms, gives "Navigation Error"

I'm new to WebPagetest (https://www.webpagetest.org/) and am having some trouble with login forms. I am using scripting, and can navigate to the page with the form, but it appears as though I am not correctly entering any form values, nor is the…
REW
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Error from Webpage API while running sitespeed.io Test

I ran below webpagetest through sitespeed on docker configuration. Below is command for the reference. docker-compose run sitespeed.io site_urls.txt --graphite.host=graphite --mobile --firstParty .fabhotels.com --network=3gslow -c 3gslow…
deepak1393
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How to test a page with an autoplaying video in Chrome on WebPageTest?

I have a page I want to test in WebPageTest in Chrome, but it has an autoplaying video, and Chrome autoplay policy disallows autoplay by default. How do I force-enable the autoplay in Chrome on WebPageTest?
jakub.g
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Block js pushed by server on webpagetest

I do some test blocking a js file to see the impact of it on the perf. I have a case where the js file is directly pushed by the server. How can I block this js ?
Ôrel
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WebPageTest WPT Private Instance - Agents not deregistering with server

I have setup WPT (Web Page Test) private instance, using docker, mesos and marathon. However when I'm scaling up and down of agents, sometimes the server thinks that there are more agents connected (when looking at server-host/install/). It looks…
claritee
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how to make webpagetest.org load a website from a different IP address

I once received instructions from a web hosting support on how to use webpagetest.org to test a website from a different IP address to the one it is currently live at. This enables you to test the website on a different host to see if that host…
Steve
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