What I am planning on doing I can do on my server, but I would rather no DDoS my own server.

I am parsing the url of the site the greasemonkey script is currently running on
and stripping out the domain/subdomain address.

I then will have that passed to my site and have it checked in the Database.
This script will run on every page.

BUT what i dont want to happen is every page it submit the same domain over and over and over again
is there a way I can do some sort of caching or build a list in a cookie or session variables?

either logging in some sort of session variable that would terminate on end of session on that site
or a cookie that expires in like an hour?

but if it was cookie it would have to be able to maintain multiple lines for tabbed browsing

any suggestions will be much appreciated.
thanks

never mind got something to work