On my recent visits to Velocity, WebPerfDay and Apps World in London, Real User Monitoring (RUM) was the hot topic. That triggered my thinking about the differences between vendors. They all promise the same for a varying range of prices \u2013 from free to a couple thousand US dollars. What I found out is that there IS a big difference and \u2013 depending on what you want to do with RUM \u2013 you want to make sure you understand the capabilities and limitations of the available solutions.
\nWhat all vendors claim to do is capture data from 100% of your users. When looking closer you see that many of these solutions \u2013 especially the \u201cFreemiums\u201d \u2013 rely on theW3C Navigation Timings. So my question is: How can I cover ALL Users with W3C timings when these timings are NOT AVAILABLE on all browsers?<\/p>\n