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When we introduced HAR files for performance measurements and analysis, we recommended using the online viewer at for visualization. However, for some reason the online viewer did not display any graphs lately.  While the site’s owner fixed the issue impressingly quickly when we told him about it, there will be occasions where you may

Hooray! iMacros for Chrome, the newest member of the iMacros family of browser-based web testing tools, is featured in the Google Chrome app store: For the AlertFox team it is especially interesting that the latest iMacros for Chrome version can be controlled by the iMacros Scripting API. That means we can integrate it in our

Hooray… Microsoft selects AlertFox Website Monitoring as Startup of the Day! If you follow this link you will find an interview with Mathias Roth, Managing Director and Co-founder of AlertFox.

Sensible website monitoring not only tells you that something goes wrong with your site, but also helps you in identifying the problem. This is why this update is focused on providing more information on failing transaction sensors. (1) Waterfall Diagrams Get a grip on the load time of each and every element of your site.

Waterfall diagrams – as announced earlier – are just the first step. In case of a sensor failing, we plan to provide you with the full HTTP traffic protocol. This data will be available as zipped HAR (“HTTP Archive“) files that you can feed to a number of tools for visualization and analysis, e.g. Fiddler

Still more features to come! Current releases of iMacros are able to log the performance of the macros being run. And as AlertFox uses iMacros for automating real browser instances for your tests, we will offer these protocols in case a sensor goes astray. Using the downloadable XML files, you get full timing information about

News from the “labs”. We’re currently working on adding so-called waterfall diagrams to our sensors. With these diagrams you’ll be able to drill down and determine exactly what part of a web page caused a sensor time out.

Public Status Dashboard

Friday, 06 May 2011 by

Starting today all AlertFox  users can try out our new and improved public report pages, seen here below. These reports, also known as status pages, website health page or simply public reports, let you make some or all of your AlertFox monitoring results public, promoting transparency toward your users. Our status dashboard is all HTML,

Web Regression Testing with AlertFox

Friday, 04 March 2011 by

Many companies maintain a duplicate version of their website (more or less hidden) in order to test code updates. With AlertFox, a simple web regression setup would look like this: First, there is the test site running the latest code base. It must be web-accessible to allow the AlertFox sensors to check it, but can

PRO3 accounts support up to 10 iMacros sensors that may be run in 15-minute intervals. But sometimes you don’t want to cover more of your site’s features, but you want to have it watched more closely. That’s why we offer upgrades from 15-minute to 5-minute sensors.   Please find more details in the Wiki FAQ