This could possibly result in the webmaster action of temporarily BLOCKING your IP address from access. Can you blame them? Your repeated requests appear to them as an attempt to shutdown their site (a common hacker activity!)
Hitting a site repeatedly is not courteous and just a bad idea...
WebParser Dump Utility can solve this problem.
It will 'parse' the site using the URL you provide, and save the parsed information in the skin folder as 'WebParserDump.txt' and opens the file in your editor. You can then save it in your skin folder and use it as your target.
You can now use this filename as the URL value in your WebParser measure while testing your latest skin, and never worry about being blocked from the information!
Also, this dump file is exactly what is returned by the WebParser plug-in, which can be different from the 'View Source', which is browser specific, and may not be what is returned by the plug-in.
You can do this easily in your skin, but new skin authors may not be aware of the feature...
Also available as rmskin: