Thing to view while choosing the web server.

Service Level Guarantees & Contract Term	Colocation	Dedicated Servers	Managed Dedicated Servers	Managed Hosting
Power uptime	X%	X%	X%	X%
Network uptime	X%	X%	X%	X%
1 hour hardware replacement
15 minute critical incident response time
Contract term options	Annual	Monthly/Annual	Monthly/Annual	Annual
Enterprise-Class Hardware	Colocation	Dedicated Servers	Managed Dedicated Servers	Managed Hosting
Secure direct physical access		N/A	N/A	N/A
Secure locking cabinets and cage space		N/A	N/A	N/A
Enterprise-class Dell PowerEdge servers	Leasing optional
32-bit and 64-bit processors	Leasing optional
Serial Attached SCSI (SAS) & SATA hard drives	Leasing optional
Hardware RAID controllers	Leasing optional	Available	Available
KVM over IP	Leasing optional	Available	Available	N/A
Cisco ASA hardware firewalls	Leasing optional	Available	Available
Hardware load balancing with GSLB options	Leasing optional	Available	Available	Available
Server and database clustering	Available	Available	Available	Available
Private backend networking	Available	Available	Available
Gigabit (1Gbps) frontend & backend networks	Leasing optional	Available	Available	Available
Custom-built IT environment		Available	Available
Fully redundant highly-available environments	Available	Available	Available	Available
Bandwidth allocation options	Account	Server/Account	Server/Account	Account
Storage & Backup Technologies	Colocation	Dedicated Servers	Managed Dedicated Servers	Managed Hosting
Direct Attached Storage (DAS) devices	Leasing optional	Available	Available	Available
Storage Area Network (SAN) devices	Leasing optional	Dedicated	Dedicated	Shared/Dedicated
Storage Cloud scalable usage-based disk space	Available	Available	Available	Available
Global Content Delivery Network (CDN)	Available	Available	Available	Available
Disk-to-disk based performance backup system	Available	Available
Unmetered backup traffic	Available	Available	Available
Private dedicated backup network	Available	Available	Available
Offsite backup storage	Available	Available	Available	Available
Application-specific backup agents	Available	Available		Available
Fully managed backup and restore process	Available	Available
Software – Operating Systems & Applications	Colocation	Dedicated Servers	Managed Dedicated Servers	Managed Hosting
Microsoft Windows Server 2003 R2	Leasing optional
Microsoft Windows Server 2008	Leasing optional
Microsoft Windows Server 2008 w/Hyper-V	Leasing optional
Red Hat Enterprise Server v4 & v5	Leasing optional
CentOS Server v4 & v5	Leasing optional
FreeBSD	Leasing optional
Microsoft SQL Server 2005	Leasing optional
Microsoft SQL Server 2008	Leasing optional
MySQL Server v5	Leasing optional
cPanel	Leasing optional
Plesk	Leasing optional
Ensim Pro X	Leasing optional
Anti-virus	Leasing optional
R1Soft CDPServer	Leasing optional
eVault Backup	Leasing optional
Support Coverage	Colocation	Dedicated Servers	Managed Dedicated Servers	Managed Hosting
24x7x365 support
Support team is 1st line of defense for all alerts	Available	Available
Comprehensive customer portal	Orbit	Orbit	Orbit	Northstar
Customer portal API for custom development				N/A
Knowledge base for customer self-service				N/A
Automated operating system reload process	Available
All support provided by certified engineers	Available
Dedicated Technical Account Manager	Available
Dedicated Senior Database Administrator	Available
Dedicated Senior Systems Administrator	Available
Dedicated Senior Network Security Engineer	Available
Server Management Services	Colocation	Dedicated Servers	Managed Dedicated Servers	Managed Hosting
Remote server reboot	Available
Remote console & terminal access	Available
Root/Admin access to all servers
Server administration services	Available	Available	Available
Monitoring Services	Colocation	Dedicated Servers	Managed Dedicated Servers	Managed Hosting
Uptime monitoring	Available	Available
Application & process monitoring	Available
Port monitoring	Available	Available
Proactive hardware failure monitoring	Available
Advanced CPU thread monitoring	Available
Advanced memory utilization monitoring	Available
Proactive storage capacity monitoring	Available
Distributed Denial of Service (DDoS) monitoring
Bandwidth utilization monitoring
Custom escalation procedures for alerts	Available	Available
Security Services	Colocation	Dedicated Servers	Managed Dedicated Servers	Managed Hosting
Server patching	Available	Available	Available
Server hardening using best-practice benchmarks	Available	Available	Available
Server virus protection	Available	Available	Available
Server vulnerability scanning reports	Available	Available	Available
Managed hardware firewall configuration profiles	Available	Available	Available
Managed site-to-site or client VPN access	Available	Available	Available
Managed dedicated intrusion detection system	Available			Available
Managed dedicated log management system	Available			Available
Advanced Management Services	Colocation	Dedicated Servers	Managed Dedicated Servers	Managed Hosting
Managed customized environment deployment	Available	Available	Available
Managed server clustering services	Available
Managed database clustering services	Available
Regular environment consultation with support team	Available
Database platform management and optimization	Available
Centralized & managed role-based access authentication	Available
Personalized environment run book	Available
Regular IT business planning	Available
Proactive IT scalability planning	Available
Root-cause incident management	Available
Hardware and software vendor incident escalation	Available