major site downtime
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i was reading some stuff today that pointed to a report on top 20 sites (as reported by alexa) and their downtime. the report can be viewed here. it reminded me of a post i made long ago defining what "five 9's" meant in downtime...to put it in perspective, here's my analysis of the report as defined by "9's":
| Site | Downtime | % Uptime |
| yahoo.com | 0m | 100% |
| google.com | 7m | 99.999% |
| myspace.com | 1h | 99.989% |
| msn.com | 2h 45m | 99.969% |
| ebay.com | 6m | 99.999% |
| youtube.com | 4h 44m | 99.946% |
| facebook.com | 25m | 99.995% |
| wikipedia.org | 2h 23m | 99.973% |
| craigslist.org | 1h 9m | 99.987% |
| live.com | 1h 48m | 99.979% |
| amazon.com | 21m | 99.996% |
| blogger.com | 4h 47m | 99.945% |
| go.com | 8m | 99.998% |
| aol.com | 3m | 99.999% |
| microsoft.com | 13m | 99.998% |
| cnn.com | 22m | 99.996% |
| comcast.net | 3m | 99.999% |
| imdb.com | 29m | 99.994% |
| flickr.com | 30m | 99.994% |
| photobucket.com | 1h 23m | 99.984% |
this is only in "9-speak" nothing else...i'm not attempting to analyze the data anymore than put it in a different perspective. quite frankly, we don't know the stories behind some downtime...it could be that youtube took their site down to do a cleansing of copyright material...which might be a good reason to have downtime...but again, no analysis here.
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