Running our own instance also removes the limit of 9 runs per URL.WebPageTest contains of one web server (the main entry point) that can run on Linux/Windows and test agent (that actually runs the browser tests) that only runs on Windows.Setting up WebPageTest instances can be quite a lot of work (even though the list of what needs to be done is not too long However, there are ready made AMIs on Amazon that we could could use. If something isn't working for you on the WebPageTest server instance you can find the logs here (yep they are on different locations) That will save us a lot of time on setup and will also add automatically up/down scaling of agents.
Choose what metrics to collect. Let me add task to check out what values we will have then. I'm very happy that the speed index is able to measure the degradation caused by centralnotice banners, I'd call it a huge bonus benefit.The next step would be to either find a way to measure the real world, on the field speed index; or make webpagetest simulate an average visit behaviour (e.g. This is the list of hits referred to above, it will be much larger than the example. This is super and helps detect trends, regressions, and other changes at large. If for some reason you want to restart the server (normally if you manually changed settings in If you want to look at a specific test, go to By default WebPageTest will pick the median run of pageLoadTime. The killer feature of WebPageTest is the metric called SpeedIndex – a measure of how fast the above-the-fold content is displayed. You can run simple tests or perform advanced testing The metrics are too unstable at the moment to add alerts but we hope we can do that in the future. Think to be sure to know if the size changes for logged in users, we should measure the whole login step (and not the next access that we do today).
will provide rich diagnostic information including resource loading waterfall charts, Page Speed optimization We use Amazon cloud watch to keep track of the disk space of the WebPageTest server. Edit the crontab (as the ubuntu user):
You do that in You can read more about how to configure the locations.ini file at When you started your agent, and changed the locations.ini file, restart nginx on the WebPageTest server:
So we'll need to keep url size in mind (currently 1000) and potentially require splitting up into multiple requests.Yes think so, but I don't follow why we don't get a straight line. Always test with one run, go to the WebPageTest result page, verify that the URL is the right one, that the screenshots are ok, the video looks good and the metrics seems to be ok compared with how you configured the runs. This isn't perfect right now because I things get cached on the first hit after we login (the redirect). WebPageTest consists of two separate entities: a server and agent(s). That doesn't matter so much for us right now, but if we also wanna pick assets sizes from the run, we need to have workaround (and don't worry there is).Firefox is using SPDY but the HAR/Waterfall graphs aren't generated because there's Internet Explorer 11 isn't supporting SPDY on older version of Windows (and that's what WPT uses).The Safari version running on WPT is 7:ish meaning not supporting SPDY.Would be nice to define for how long time we will keep the test, using the auto deletion feature of S3.//www.wikimedia.org/beacon/statsv?webpagetest.enwiki.Facebook.anonymous.ie.firstView.SpeedIndex=1808ms&webpagetest.enwiki.Facebook.anonymous.ie.firstView.render=1711ms&webpagetest.enwiki.Facebook.anonymous.ie.firstView.TTFB=344ms&webpagetest.enwiki.Facebook.anonymous.ie.firstView.fullyLoaded=7639ms&webpagetest.enwiki.Facebook.anonymous.ie.firstView.mwLoadStart=1678ms&webpagetest.enwiki.Facebook.anonymous.ie.firstView.mwLoadEnd=2937ms&webpagetest.enwiki.Facebook.anonymous.ie.repeatView.SpeedIndex=1684ms&webpagetest.enwiki.Facebook.anonymous.ie.repeatView.render=1098ms&webpagetest.enwiki.Facebook.anonymous.ie.repeatView.TTFB=237ms&webpagetest.enwiki.Facebook.anonymous.ie.repeatView.fullyLoaded=5887ms&webpagetest.enwiki.Facebook.anonymous.ie.repeatView.mwLoadStart=1024ms&webpagetest.enwiki.Facebook.anonymous.ie.repeatView.mwLoadEnd=5312msThat's 853 characters (when expanded to https).
That's not optimal because we want to focus on SpeedIndex or start render time.
If you want to add a new URL to be tested on the English Wikipedia, you open If you want to test changes before and after it's super important to test it many times to get correct values, use At the moment our test instance is busy running our continuously performance tests that we graph on We run automatic tests every hour (you can find the tests Our mainly focus is testing on empty browser cache but we also run test with multiple page views (first hit one and then another) and as authenticated users. Synthetic testing tries to run from the same location, same latency, same browser and measuring the same way. the domains to Run a free website speed test from multiple locations around the globe using real browsers (IE and Chrome) You can run simple tests or perform advanced testing including multi-step transactions, video capture, content blocking and much more. WebPageTest is known for the lack/outdated documentation.
Choose which metric to use and if you want the median or the fastest run: Using WebPageTest as our synthetic tool also has another advantage: SpeedIndex - the best way today to measure when the above the fold content is ready for the user.
Try caching that first list, then the list with fewer hits as well, checking load times with Webpagetest all the while.
That way we can run the tests automatically that we want and the result will be public (if you know the URL).Here's an example of WebPageTest run using Chrome for We will have a problem in a way of that we will not have everything exactly how we want it with SPDY for different browsers until we change to HTTP2.It's like this: WebPageTest has SPDY support for Chrome, meaning it will use SPDY and all the metrics will be right, except for sizes of different objects in the HAR file. WebPagetest Monitor; Wiki; WebPagetest Monitor Brought to you by: asperkins. チームスを使えるようにはなってきたんだけど、みんな初心者だからカオスになってる。。上手く情報整理するにはどうしたらいいの？このような声にお応えするために、チームスを2年間使い倒した僕が習得したノウハウを公開します。
Collecting data using RUM means adding some JavaScript to pages.
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