Detect broken links

I need to check if a page is available from another page.

[chiggeybean]

I am searching for a method of checking if our intranet portal is operational from our internet site. If the portal is down, I'd like to display content that explains the problem. A server ping doesn't work, because sometimes the server is good, but the service is down. So, checking a specific page would be ideal.

Thanks for any help.

[barns101]

See this thread [webmasterworld.com].