I believe you're asking if it would be possible for each user be able to redirect Webex attendees to a unique URL after a meeting. I don't believe this is currently available but you can submit a Feature Enhancement Request at this LINK. If you do submit this as a Feature Enhancement, please come back to this post and update it with a link so others that like that feature can vote for your idea.
Regarding sending them to a unique URL before the meeting, you could include that in your meeting invitation. Hopefully this helps.