While I was debugging the code for the Ultimate Sims List, I wrote a little utility script to show the response headers I'm seeing from web pages it looks up. Just for grins, you can play with it, too!
Here's the trick: Copy the following link, paste into a new browser window, and replace everything after "?myurl=" with a link you're curious about.
Example -- Query the Ultimate Sims List front page:
Query the Ultimate Sims List front page
Ohhh... I gotta work on those meta tags!
"Those who love the law and web sites should never watch either being made."
-- Autobahn Bisquick