Pondus,
I see you edited your reply while I was typing mine.
Your link shows several different URL names, that all resolve to the same IP-Address... for example,
www.RitaLangworthyFoundation.org and
www.BeachBumBikingClub.comWhen I click on each of these links (on a PC NOT using avast), I see two very distinct webpages, each corresponding to the respective name. So how can these both share the same IP address 143.95.44.95 ?
-----------------
EDIT: Okay, I've done some reading, and apparently HTTP version 1.1 indeed allows multiple distinct websites to share a single IP-Address... this was news to me. As a consequence, if avast [or any other anti-malware detector] uses IP-Address-based filtering, and if any ONE of the websites that share an IP-Address needs to be blocked, the ALL of them get blocked in the process... is that a correct analysis of what may be happening here?
=============
EDIT: Okay, so now I think I understand: One of the sites which also shares the IP address is hXXP://paypal.uppddateyouraccountinformation DOT com , which is a malicious phishing site. And so understandably, avast wants to protect its users from accessing it.
But in the process --- by blocking ALL websites that resolve into (i.e., share) that same IP address --- it's not allowing access to a legitimate site (The Rita Langworthy Charitable Foundation).
I guess that explains what's happening. But I just know the Foundation will not be happy with this explanation.