Creating a URL still exists page/util

[Laphan]

Hi All

Quite familiar with ASP and JavaScript and wondered if there is a method out
there that allows me to create a web page util to see if URL links are still
valid.

In other words I've created a system whereby a user can add their own
links/urls page, but they want to periodically check whether all of these
links by executing a multi-check.

My theoretical thought on this would be that the script would check if it
receives a 404 on each page request and mark a flag if and when it gets it,
but as to how I would do this in ASP or JavaScript, I have no idea.

Have you seen anything like this before?

Thanks

Laphan

 

[Kyle Peterson]

you would use the xml parser (google it) to go check the page.
Complications arrise though when you take into consideration that sites and
servers sometimes go down.

So you really want to design a system that check a site a few times over a
period of time before you remove a link