Scanned the url with several web scanners:
http://urlquery.net/report.php?id=1495395845946
https://sitecheck.sucuri.net/results/www.salsurvey.com/
https://www.virustotal.com/en/url/9c942e6c37c7ce385b75004c63dd35e86df18bf71f53932f8753b6221984d147/analysis/1495398161/
http://zulu.zscaler.com/submission/show/f88d4376a39fa99ddca454a1a969c629-1495398119
If Avast does not have a web block now, it should have one soon, as this site is detected as blacklisted by one vendor and as suspicious in another.

Site appears to be parked.