Exhibit 31.1
CERTIFICATION PURSUANT TO RULE 13a-14(a) OR 15d-14(a) OF THE SECURITIES
EXCHANGE
ACT OF 1934, AS ADOPTED PURSUANT TO SECTION 302 OF
THE SARBANES-OXLEY ACT OF 2002*
I, A. Lanham Napier, certify that:
1. I have reviewed this amendment to the annual report on Form 10-K/A of Rackspace Hosting, Inc.; and
2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report.
| Date: April 13, 2009 | By: | /s/ A. LANHAM NAPIER | ||
| A. Lanham Napier | ||||
| Chief Executive Officer, President and Director | ||||
| (Principal Executive Officer) |
| * | This certification has been modified in accordance with SEC compliance and disclosure interpretations relating to Section 302 certifications in amendments to periodic reports. |