Question

This may not seem like a development question but there is a link.

I have been experiencing some issues loading some web pages from my development machine. They were painfully slow. I disregarded this until I tried running my own site and found that the culprit was the show.ad.js file provided by google adsense.

Using firebug I see that the page hangs on the loading of this file and then aborts after about 5-10seconds. If I am calling multiple database records to a page it will load one, hang, abort and then load another.

Trouble shooting I have done and things I can rule out are:

• My router or any other external peripheral. If I go to any other PC in the house the page loads fine and very quickly. I have tried cabled and wireless. The problem appears to be something unique with my machine.
• It is not just my website, it is all websites with google adsense.
• I have turned off my firewall and shutdown anti virus. No change.
• It is from all browsers on this PC. I have tried chrome, safari, firefox and ie. No change.
• I do not have any ad blocker software installed that I know about.

I know there could be a million reasons why I could be having this problem but I thought someone out there may have had a similar experience. Failing that, is there any way I can trace the problem as I have no idea where to start.

Thanks in advance

Answer 1

Have you checked your hosts file? There may be a bogus IP address for the AdSense host defined there. This file is plain text and is located at %SystemRoot%\system32\drivers\etc\hosts on Windows boxes, with no extension. (%SystemRoot% is typically C:\WINDOWS on a default install.)

Also, there may be a bad IP address in your DNS cache. Run ipconfig /flushdns to clear it.