si necesitas una empresa con alto uptime te puedo recomendar la que yo uso,
www.nexovirtual.net te dejo un report de mi web
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Weekly Summary Report
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http://www.pereztroff.com
Total Outages: 0.00
Total time on error: 00:00
Percent Uptime: 100.0
Average Connect time*: 0.11
Outages- the number of times we were unable to access this URL
Time on Error- the total time this URL was not available (hr:min)
% Uptime- the percentage this URL was available for the day
Connect Time- the average time in seconds to connect to this URL