Ist default-search.net sicher?

This is a really bad site .. always my adblocker block many Ads and Popups witch is a very unwanted softwares and black-listed programms even when you try to buy something .... it doesn't let you buy and always wanna take my credit card details also there is many server names witch is updated in ***** ***** ,and many other softwares and sites witch is blocked by my Antivirus ((avast internet security));

Trojan were imbedded in download file ***** 12:50:19 PM,High,sysapcrt.dll (Trojan.ADH.2) ***** 12:50:17 PM,High,systemkservice.exe (Trojan.ADH.2)

In checking this link it says that Go Daddy owns it. I have purchased web domains from Go Daddy and they seemed to be fine. But this search engine kept coming up and until I deleted it I couldn't get my original back. As for viruses and malware I don't think I had it long enough to know. I went by WOTS and just deleted it.

Found "default-search.net" on customer laptop, no entry in programs and features, does not show up as an add-in or plugin on any of the browsers. This site has not been around long: Domain Name: DEFAULT-SEARCH.NET Registrar: GODADDY.COM, LLC Whois Server: ***** Referral URL: ***** Name Server: NS1-192.AKAM.NET Name Server: NS4-64.AKAM.NET Name Server: NS5-66.AKAM.NET Name Server: NS7-64.AKAM.NET Status: clientDeleteProhibited Status: clientRenewProhibited Status: clientTransferProhibited Status: clientUpdateProhibited Updated Date: 10-nov-2013 Creation Date: 30-nov-2011 Expiration Date: 30-nov-2017