Take the 2-minute tour ×
Super User is a question and answer site for computer enthusiasts and power users. It's 100% free, no registration required.

My client is experiencing some odd response behavior in their browser for the past few days. Classic, "nothing has changed" so I am starting at ground zero. Browsing a website will timeout or take a ridiculous time to load -- other times, the same site and query is immediately responsive. Once a connection is established, video streams are uninterrupted.

The home network hosts a website, but it is not experiencing any activity in Apache's 'access.log'

I am using speedtest.net to check if the ISP through the internet is 'OK' -- which looks typical (average +/-). I have to suspect the home network is beaconing or something very abnormal, but I don't know where to start.

share|improve this question
add comment

2 Answers

up vote 1 down vote accepted

It could be a problem with the DNS server: when the browser (any browser) tries to visit a "new" site, it first has to translate the host/domain name to an IP address, and this step can time out if the DNS server doesn't respond quickly enough.

share|improve this answer
njd, based on that, I just googled for some DNS tools and came up with 'dtrace' and I am watching the following video to learn. Any other tools or sample scripts for dtrace?? video.google.com/videoplay?docid=-8002801113289007228# –  mobibob Mar 28 '10 at 0:07
add comment

A handy way to find out what the problem with networks like this is to use the Firebug http://getfirebug.com/ Extension in Firefox.

Then enable the Net tab and load up a website. Firebug will give you a list of all the activities involved in downloading that webpage and show you how long they took.

This page has a tutorial on using the Net tab:


(not a hyperlink, cut and paste to get it - not enough rep *shrug*)

share|improve this answer
Oh thats good to know ... I use Firebug but I did not find that feature. Good answer! –  mobibob Mar 28 '10 at 16:16
add comment

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.