Web Servers - about 20 millions
Running:
- Apache - 70%
- Microsoft - 25%
- Netscape - 1%
- Zeus - 1%
- Others - 3%
DNS Load Balancing
It is a good practise to have multiple IP to a host for the purpose of providing redundancy and load balancing. However less then 5% of the host have more then 1 IP address. Of the 5%, here is the summary by number of IP per host:
- 2 IPs - 35%
- 3 IPs - 15%
- 8 IPs - 14%
- 18 IPs - 6%
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