You can use this procedure to force an update for the url on your PA.
You may also want to check your cache setting to a shorter period.
Device Tab — Setup Menu — Content ID tab — URL filtering options box
Click Accept as Solution to acknowledge that the answer to your question has been provided.
The button appears next to the replies on topics you’ve started. The member who gave the solution and all future visitors to this topic will appreciate it!
These simple actions take just seconds of your time, but go a long way in showing appreciation for community members and the LIVEcommunity as a whole!
The LIVEcommunity thanks you for your participation!