I thought as a break form the normal prose some of our readers might enjoy a short overview of the Stack Exchange Network (including Stack Overflow, Server Fault, and Super User) from a technical view:

Traffic:

95 Million Page Views a Month

800 HTTP requests a second

180 DNS requests a second

55 Megabits per second

Data Centers:

1 Rack with Peak Internet in OR (Hosts our chat and Data Explorer)

2 Racks with Peer 1 in NY (Hosts the rest of the Stack Exchange Network)

Production Servers*:

12 Web Servers (Windows Server 2008 R2)

2 Database Servers (Windows Server 2008 R2 and SQL Server 2008 R2)

2 Load Balancers (Ubuntu Server and HAProxy)

2 Caching Servers (Redis on CentOS)

1 Router / Firewall (Ubuntu Server)

3 DNS Servers (Bind on CentOS)

Software and Technologies Used:

Developers and System Administrators:

14 Developers

2 System Administrators

*(excludes fail over and management servers)