Web rep scans can miss a lot out and could allow you to go to suspicious or even malcious sites.
This one was missed totally at sucuri’s: web site: mesin.unand.ac.id
status: Verified Clean
web trust: Not Blacklisted
Here again: http://www.google.com/safebrowsing/diagnostic?site=http%3A//mesin.unand.ac.id
Here again: http://safeweb.norton.com/report/show?url=http%3A%2F%2Fmesin.unand.ac.id
Here again: http://www.webutation.net/go/review/mesin.unand.ac.id
M86 and Bitdefender’s TrafficLight do not altert this as a malware site.
But site definitely has malware: http://siteinspector.comodo.com/public/reports/28328
Avast detects malware there: http://www.virustotal.com/file-scan/report.html?id=9b9240de8046b91a75b1211740c9b84eaeeaed82225e667e3cda7f2da69f50aa-1324389621
Live malware is at: -http://mesin.unand.ac.id/.../.../byroe.jpg??
-http://mesin.unand.ac.id/.../allnet.jpg
-http://mesin.unand.ac.id/.../ipays.jpg
-http://mesin.unand.ac.id/.../.../chivas.txt??
So use web rep, but do not rely on it too much, just as with blacklists,
polonus