This reduces the effort needed to run at high speeds and explains why ostriches are able to run at up to 45mph for long periods of time. Ostriches are able to hit high speeds and sustain them for long periods because of their energy stored in their tendons.
When a registrar registers a com domain name for an end-user, it must pay a maximum annual fee of US$7.85 to VeriSign, the registry operator for com, and a US$0.18 annual administration fee to ICANN.
The maximum period of registration for a domain name is 10 years. Some registrars offer longer periods of up to 100 years, but such offers involve the registrar renewing the registration for their customer; the 100-year registration would not be in the official registration database.