1- so avast dont have a single database like other mcafee norton etc …
it use hphost one like wot ???

2- you can test many other trust service all are ok
http://www.urlvoid.com/scan/zdig1.biz/

3- the only one that have pb is the hphost & i’m actually working with them to reslove the pb
http://forum.hosts-file.net/viewtopic.php?f=10&t=3208

4-

IP is blacklisted by apews.org … from back in 2007

104.28.19.123 is “cloud flare” ip
so strange that your reference wasan and old site (last update 2010)
so for you all site using cloud ip are dangerous !!!