With that protection you will be good to go. Assume you have the various avast shields up and running because they give a great deal of added protection.
If you have a question on some questionable URL, post it with a broken link, like with hxtp or wXw. We will have a look in the virus and worms section scanning through a whole plethora of online scanners and analyzing tools to see if there are any security issues with the site or what is on it.
DavidR, Pondus, Asyn, !Donovan as well as little old me have built up quite some expertise in this field. We are able to establish the status of that URL as either suspicious, malcious or clean from malware, adware etc.. Also we can establish if the website may have issues that make it vulnerable to specific threats, attacks or re-infection. If ever questioning something, you know where to find us - virus and worms,
polonus