How can I receive a data such as dns lookup time, page load time and other on node js?

Question

I want to receive the next data of web page:

• dns lookup time
• page load time (before an event 'onLoad')
• TTFB
• total time (dns lookup time + page load time)

How can I do this on a node js?

Answer 1

First off, I don't have experience with this myself, but it seems like an interesting question so I looked it up a bit and here's what I found:

• dns lookup time: http://nodejs.org/api/dns.html

For all other points you asked I didn't manage to find any direct usage, but as it seems NewRelic does this already so you may want to check them out. On this link they show the how-to.

As a side note, take a look at this question here on StackOverflow if it gets you some help, and this module may be of interest to you too: https://github.com/shunanya/Node.js-monitoring.