Geographically, despite four out of five of our measurement points being in the US, European sites accounted for four of the ten most reliable sites with fewest failed requests. With respect to operating systems, three of the top six sites run Windows, and seven of the top thirteen run FreeBSD.

Netcraft measure and makes available the response times of fifty three leading hosting providers’ sites The performance measurements are made at fifteen minute intervals from four separate points around the internet, and averages are calculated over the immediately preceding 24 hour period.

Fuller information on the measurement process and current measurements are available.