Keynote Reports Fiscal Fourth Quarter and Year End 2008 Results

--Non-GAAP EPS Was $0.10 and $0.11 for the Fourth Quarter 2008 and 2007 and $0.27 and $0.29 for Fiscal 2008 and 2007, Respectively

--Results Exceeded Company's Revenue and Met Non-GAAP Earnings Guidance

Keynote Systems (Nasdaq: KEYN), the global leader in on-demand mobile and Internet test & measurement solutions for continuously improving the online experience, reported financial results for its fiscal fourth quarter and fiscal year ended September 30, 2008.

Umang Gupta, chairman and CEO of Keynote, said: "Fiscal year 2008 proved to be very good for Keynote. We achieved overall annual revenue growth of 13.5 percent along with improved profitability. Our Mobile Test and Measurement business was the main driver of this growth, increasing 61 percent in the fourth quarter and 63 percent in the year as a whole. We believe our strong balance sheet combined with our diverse product portfolio forms a solid foundation for us to perform well even in the current adverse financial climate."

Fourth Quarter 2008 Financial Summary

Revenue for the fourth quarter of fiscal year 2008 was $21.1 million, increasing from $20.5 million in the third quarter of fiscal year 2008 and from $17.8 million in the fourth quarter of fiscal year 2007. Net loss under generally accepted accounting principles (GAAP) for the fourth quarter of fiscal year 2008 was $631,000, or $0.05 per share, reflecting both top-line growth and better operating efficiencies. This compared to a net loss of $407,000, or $0.03 per share, for the third quarter of 2008 and $3.5 million, or $0.19 per share, which included a $2.8 million charge for deferred tax asset adjustment, for the fourth quarter of 2007. The non-GAAP net income for fourth quarter of 2008 was $1.4 million, or $0.10 per diluted share, compared to $1.3 million, or $0.09 per diluted share, for the third quarter of 2008, and $2.2 million, or $0.11 per diluted share, for the fourth quarter of 2007. The company defines non-GAAP net income as net income adjusted for provision for income tax, stock-based compensation expense, and amortization of purchased intangibles less cash taxes from on-going operations. Non-GAAP net income per share equals non-GAAP net income divided by the diluted weighted average shares outstanding for the period.

Fiscal 2008 Financial Summary

Revenue for fiscal year 2008 was $76.9 million, a 13.5 percent increase compared to revenue of $67.8 million for fiscal year 2007. Net loss for fiscal year 2008 was $3.1 million, or $0.20 per share, compared to $4.7 million, or $0.27 per share, for fiscal year 2007, which included a $2.8 million charge for deferred tax asset adjustment. The non-GAAP net income for the fiscal year 2008 was $4.3 million, or $0.27 per diluted share, compared to non-GAAP net income of $5.4 million, or $0.29 per diluted share, for the fiscal year 2007.

Cash Flow and Deferred Revenue Summary

In the fourth quarter of 2008, cash provided by operating activities was $565,000. This is compared to $1.5 million in the prior quarter and $3.0 million in the fourth quarter of 2007. Cash used for purchases of property, equipment and software totaled $1.9 million for the fourth quarter of 2008. This compared to $1.6 million in the prior quarter and $1.4 million for the fourth quarter last year. Cash used for acquired technology consisted of a one-time source license purchase of $2.6 million of mobile technology. Keynote defines free cash flow as cash flow from operations less cash used for purchases of property, equipment, and software and acquired technology. The company used $3.9 million and $80,000 of free cash flow in the fourth and third quarters of 2008, respectively, and generated $1.6 million in the fourth quarter of 2007. At September 30, 2008, Keynote had $49.3 million in total cash, cash equivalents and short-term investments.

Keynote's net deferred revenue was $19.9 million at September 30, 2008, compared to $22.0 million at September 30, 2007. Keynote's gross deferred revenue, defined as the sum of net deferred revenue and unpaid deferred revenue, was $24.7 million at September 30, 2008, compared to $26.6 million at September 30, 2007.

The total shares outstanding, net of treasury shares, at September 30, 2008 was 14.1 million, compared to 18.3 million at September 30, 2007.

Operational Metrics Summary

As of September 30, 2008, Keynote's total worldwide customer base was approximately 2,800 companies. Keynote currently provides its services to 46 percent of the comScore Media Metrix's top 50 Web sites and approximately 50 percent of the Fortune 100 companies. As of September 30, 2008, Keynote measured approximately 14,100 Internet pages, as compared to 11,600 Internet pages in the same quarter a year ago.

Expectations for the First Quarter of Fiscal Year 2009

The statements in this section of this press release are forward-looking statements within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934. Keynote currently expects the following for the first fiscal quarter ending December 31, 2008:

-- Total revenue is expected to be between $19.5 million and $20.0 million.

-- GAAP earnings (loss) per share is expected to be between ($0.03) and $0.00.

-- Non-GAAP earnings per share is expected to be between $0.09 and $0.12.

The above guidance was based on the following assumptions. A 14 percent reduction in the Euro to US dollar exchange rate in the first quarter 2009 compared to the fourth quarter 2008 is expected to result in reduced international revenues and lower European operating expenses on a sequential quarterly basis. Total stock-based compensation expense and amortization of intangible assets is currently expected to be approximately $1.9 million. Depreciation is expected to be approximately $1.5 million. Interest income, net is expected to be approximately $200,000, assuming no material changes in interest rates and currently planned uses of cash. Cash paid for income taxes is expected to be approximately $195,000, assuming no changes in required tax payments. Basic weighted average shares outstanding are expected to be approximately 14.3 million shares and diluted weighted average shares outstanding are expected to be approximately 14.8 million shares, assuming no additional issuances of equity or equity-related securities and significant changes in the company's stock price.

Conference Call

Keynote will host a conference call and simultaneous webcast at 2:00 p.m. (PST) today, November 13, 2008. To access the call in the U.S., please dial (866) 271-6228; international callers please dial (706) 679-4457, approximately 10 minutes prior to the start of the conference call. The webcast of the call will be available at the investor section of the company's web site at www.keynote.com. The replay will be available after the call by telephone by dialing (800) 642-1687 in the U.S. and (706) 645-9291 internationally; the pass code is #67287586. The webcast is at the investor section of the company's web site at www.keynote.com.

Forward-Looking Statements

This press release contains forward-looking statements that are not purely historical regarding the Company or management's intentions, hopes, beliefs, expectations and strategies for the future. Because such statements deal with future events, they are subject to various risks and uncertainties, and actual results could differ materially from the Company's current expectations.

Forward-looking statements in this release include, but are not limited to, forecasts concerning Keynote's expected revenue, GAAP and Non-GAAP earnings per share, and the related underlying assumptions in calculating those amounts, future acquisitions and other future financial results. It is important to note that actual outcomes and Keynote's actual results could differ materially from those in such forward-looking statements. Factors that could cause actual results to differ materially include risks and uncertainties such as Keynote's ability to successfully market and sell its current services to new or existing customers, Keynote's ability to develop and introduce new services in a timely manner and customer acceptance of new services, the extent to which demand for Keynote's various services fluctuates and the extent to which revenue from other service lines can increase, the extent to which existing customers renew their subscriptions and purchase additional services, particularly enterprise customers, Keynote's ability to attract and retain new customers, Keynote's ability to operate SIGOS and its other international operations and manage related costs successfully, Keynote's ability to retain key employees, pricing pressure with respect to Keynote's services, Keynote's ability to increase sales of its other services, and the risk that its prior organizational changes will not result in improved results, unforeseen expenses, competition in Keynote's markets, costs associated with the Zandan acquisition or any future acquisitions, the effect of acquisitions by competitors in Keynote's target markets, Keynote's ability to keep pace with changes in the mobile and Internet infrastructure as well as other technological changes, and the success of Keynote's international operations. Readers should also refer to the risks outlined in Keynote's reports filed with the Securities and Exchange Commission, including its Annual Report on Form 10-K for its fiscal year ended September 30, 2007, and its quarterly reports on Form 10-Q and any current reports on Form 8-K filed during the fiscal year.

All forward-looking statements and reasons why results might differ included in this release are made as of the date of this press release, based on information available to Keynote as of the date of this press release, and Keynote assumes no obligation to update any such forward-looking statement or reasons why results might differ.

Non-GAAP Measures

This press release includes information on Non-GAAP net income, Non-GAAP net earnings per share, free cash flow and gross deferred revenues. These measures are not based on any standardized methodology prescribed by U.S. generally accepted accounting principles ("GAAP") and are not necessarily comparable to similar measures presented by other companies. Non-GAAP net income is calculated by adjusting GAAP net income for provision for income taxes less cash taxes from on-going operations, stock-based compensation expense and amortization of purchased intangibles. Non-GAAP earnings per share are calculated by dividing Non-GAAP net income by the weighted average number of diluted shares outstanding for the period. Free cash flow is defined as cash flow from operations less cash used for purchases of property, equipment, and software. Gross deferred revenue is defined as the sum of net deferred revenue and unpaid deferred revenue. These measures should not be considered in isolation or as a substitute for measures prepared in accordance with GAAP, and because these amounts are not determined in accordance with GAAP, they should not be used exclusively in evaluating its business and operations. Because the Company has made a number of acquisitions in the past, as well as because of the effect of SFAS 123(R), the Company's financial statements have changed significantly from prior periods. Accordingly, the Company believes that this non-GAAP information is useful as an additional means for investors to evaluate the Company's operating performance, when reviewed in conjunction with the Company's GAAP financial statements. Management also reviews this information as an additional means for measuring the performance of the Company. The Company compensates for these limitations by realizing that these amounts are not determined in accordance with GAAP and therefore, should not be used exclusively in evaluating its business and operations.

About Keynote

Keynote Systems (Nasdaq "KEYN") is the global leader in on-demand test & measurement solutions for continuously improving the online experience. For over a decade, Keynote has been providing measurement data and testing capabilities that allow companies to understand and improve their customers' online and mobile experience. Keynote has four test and measurement businesses: Web performance, mobile quality, streaming & VoIP, and customer experience/UX.

Known as The Mobile and Internet Performance Authority(TM), Keynote has a market-leading infrastructure of 2,600 measurement computers and mobile devices in over 240 locations around the world. Keynote's 2,800 customers represent top Internet and mobile companies including American Express, Dell, Disney, eBay, E*TRADE, Expedia, Microsoft, SonyEricsson, Sprint, T-Mobile, Verizon, Vodafone and YouTube.

Keynote Systems, Inc. is headquartered in San Mateo, California and can be reached at www.keynote.com or by phone in the U.S. at 1-800-KEYNOTE.

Keynote, The Internet Performance Authority, Perspective and WebEffective are registered trademarks and The Mobile and Internet Performance Authority and True Experience are trademarks of Keynote Systems, Inc. Other trademarks are the property of their respective owners. (C) 2008 Keynote Systems, Inc.

Keynote Systems, Inc. and Subsidiaries CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (In thousands, except per share data) (Unaudited) Three months ended Year ended Sep 30 Jun 30 Sep 30 Sep 30 Sep 30 2008 2008 2007 2008 2007 Net revenue: Subscription services $ 11,909 $ 11,441 $ 10,541 $ 45,314 $ 42,662 Ratable licenses 6,787 6,426 4,368 21,820 13,220 Professional services 2,360 2,631 2,929 9,774 11,872 Total revenue, net 21,056 20,498 17,838 76,908 67,754 Costs and expenses: Costs of revenue: Direct costs of subscription services 1,753 2,235 2,046 8,324 8,389 Direct costs of ratable licenses 2,318 1,526 1,329 6,558 4,598 Direct costs of professional services 1,752 1,762 1,887 7,113 8,164 Operations 2,279 2,270 2,030 8,576 7,673 Development 3,083 3,232 2,860 12,608 11,559 Amortization of intangible assets - software 303 281 193 1,000 754 Total costs of revenue 11,488 11,306 10,345 44,179 41,137 Sales and marketing 6,712 6,697 5,218 25,705 20,127 General and administrative 2,320 2,834 2,609 10,142 9,856 Excess occupancy income, net (323 ) (297 ) (184 ) (1,210 ) (265 ) Amortization of intangible assets - other 501 568 524 2,148 2,195 Total costs and expenses 20,698 21,108 18,512 80,964 73,050 Income (loss) from operations 358 (610 ) (674 ) (4,056 ) (5,296 ) Interest (expense) income and other, net (384 ) 343 1,312 1,990 4,750 Income (loss) before provision for income taxes (26 ) (267 ) 638 (2,066 ) (546 ) Provision for income taxes (605 ) (140 ) (4,090 ) (1,034 ) (4,145 ) Net loss $ (631 ) $ (407 ) $ (3,452 ) $ (3,100 ) $ (4,691 ) Net loss per share: Basic $ (0.05 ) $ (0.03 ) $ (0.19 ) $ (0.20 ) $ (0.27 ) Diluted $ (0.05 ) $ (0.03 ) $ (0.19 ) $ (0.20 ) $ (0.27 ) Weighted average common shares outstanding: Basic 13,980 13,747 18,068 15,522 17,533 Diluted 13,980 13,747 18,068 15,522 17,533

Keynote Systems, Inc. and Subsidiaries CONDENSED CONSOLIDATED BALANCE SHEETS (In thousands) (Unaudited) September 30, 2008 September 30, 2007 Assets Current assets: Cash and cash equivalents $ 46,769 $ 42,875 Short-term investments 2,562 65,060 Total cash, cash equivalents and short-term investments 49,331 107,935 Accounts receivable 7,316 5,988 Prepaids, deferred costs and other current assets 2,909 2,703 Inventories 1,081 1,059 Deferred tax assets 875 3,922 Total current assets 61,512 121,607 Deferred costs and other long-term assets 2,788 1,301 Property and equipment, net 36,405 35,480 Goodwill 64,452 63,129 Identifiable intangible assets, net 8,374 7,963 Deferred tax assets 2,313 - Total assets $ 175,844 $ 229,480 Liabilities and Stockholders' Equity Current liabilities: Accounts payable $ 2,505 $ 2,285 Accrued expenses 12,767 11,656 Current portion of capital lease obligation 14 24 Notes payable 256 - Deferred revenue 19,029 19,824 Total current liabilities 34,571 33,789 Long-term portion of capital lease obligation 17 31 Deferred rent and other long term liabilities 2,605 292 Long-term deferred revenue 904 2,136 Long-term deferred tax liability 236 2,347 Total liabilities 38,333 38,595 Stockholders' equity: Common stock 14 18 Treasury stock - (1,151 ) Additional paid-in capital 275,316 325,525 Accumulated deficit (143,207 ) (140,188 ) Accumulated other comprehensive income 5,388 6,681 Total stockholders' equity 137,511 190,885 Total liabilities and stockholders' equity $ 175,844 $ 229,480

Keynote Systems, Inc. and Subsidiaries CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (In thousands) (Unaudited) Three months ended Year ended Sep 30 Sep 30 Sept 30 Sept 30 2008 2007 2008 2007 Cash flows from operating activities: Net loss $ (631 ) $ (3,452 ) $ (3,100 ) $ (4,691 ) Adjustments to reconcile net loss to net cash provided by operating activities: Depreciation and amortization 2,134 1,987 8,704 7,530 Stock-based compensation 1,171 1,027 4,557 4,078 Impairment of short-term investment - - 98 - Charges to bad debt and billing adjustment reserves 51 201 240 397 Amortization (accretion) of debt investment premium (discount) (41 ) (344 ) (464 ) (1,327 ) Deferred tax provision (benefit) (26 ) (163 ) (26 ) 12 Changes in operating assets and liabilities, net (2,093 ) 3,714 (5,065 ) 14,381 Net cash provided by operating activities 565 2,970 4,944 20,380 Cash flows from investing activities: Purchase of property, equipment and software (1,878 ) (1,380 ) (5,865 ) (5,540 ) Acquired technology (2,557 ) - (2,557 ) - Purchase of businesses and assets, net (1,057 ) (86 ) (1,697 ) (393 ) Earnout payment for acquisition of business - - - (10,587 ) Sales (purchases) of short-term investments, net 1,703 (591 ) 62,862 (18,688 ) Net cash provided by (used in) investing activities (3,789 ) (2,057 ) 52,743 (35,208 ) Cash flows from financing activities: Payment of capital lease obligations (5 ) (5 ) (26 ) (32 ) Repurchase of outstanding common stock - (1,154 ) (60,070 ) (1,154 ) Proceeds from issuance of common stock and exercise of stock options 2,593 3,696 6,450 12,193 Net cash provided by (used in) financing activities 2,588 2,537 (53,646 ) 11,007 Effect of exchange rate changes on cash and cash equivalents (2,243 ) 714 (147 ) 1,034 Net increase (decrease) in cash and cash equivalents (2,879 ) 4,164 3,894 (2,787 ) Cash and cash equivalents at beginning of the period 49,648 38,711 42,875 45,662 Cash and cash equivalents at end of the period (1) $ 46,769 $ 42,875 $ 46,769 $ 42,875 (1) Excludes $2.6 million and $65.1 million of short-term investments at September 30, 2008 and September 30, 2007, respectively.

Keynote Systems, Inc. and Subsidiaries GAAP TO NON-GAAP RECONCILIATION (In thousands, except per share data) (Unaudited) Three months ended Year ended Sep 30 Jun 30 Sep 30 Sep 30 Sep 30 2008 2008 2007 2008 2007 Revenue categories: Internet Subscriptions $ 9,933 $ 9,529 $ 9,461 $ 38,432 $ 38,314 Internet Engagements 2,360 2,631 2,929 9,774 11,872 Subtotal Internet Revenue 12,293 12,160 12,390 48,206 50,186 Mobile Subscriptions 1,976 1,912 1,080 6,882 4,348 Mobile Ratable Licenses 6,787 6,426 4,368 21,820 13,220 Subtotal Mobile Revenue 8,763 8,338 5,448 28,702 17,568 Total Revenue, Net $ 21,056 $ 20,498 $ 17,838 $ 76,908 $ 67,754 Non-GAAP net income and income per share: GAAP net loss $ (631 ) $ (407 ) $ (3,452 ) $ (3,100 ) $ (4,691 ) Provision for income taxes 605 140 4,090 1,034 4,145 Stock-based compensation a 1,171 1,126 1,027 4,557 4,078 Amortization of intangible assets - other 501 568 524 2,148 2,195 Amortization of intangible assets - software 303 281 193 1,000 754 Non-GAAP income before income tax 1,949 1,708 2,382 5,639 6,481 Cash taxes from on-going operations 557 404 224 1,327 1,105 Non-GAAP net income $ 1,392 $ 1,304 $ 2,158 $ 4,312 $ 5,376 Weighted average common shares outstanding (diluted): 14,621 14,238 19,055 16,098 18,382 Non-GAAP income per share $ 0.10 $ 0.09 $ 0.11 $ 0.27 $ 0.29 a Stock-based compensation by category: Direct costs of ratable licenses $ 63 $ 68 $ 45 $ 246 $ 190 Direct costs of professional services 115 108 107 462 470 Operations 163 158 146 644 584 Development 252 237 237 993 921 Sales and marketing 399 393 328 1,532 1,280 General and administrative 179 162 164 680 633 $ 1,171 $ 1,126 $ 1,027 $ 4,557 $ 4,078

Keynote Systems, Inc. and Subsidiaries REVENUE DETAIL (In thousands) (Unaudited) Three months ended Year ended Dec 31 March 31 June 30 Sep 30 Sep 30 FY 2008 Internet Subscriptions $ 9,532 $ 9,438 $ 9,529 $ 9,933 $ 38,432 Internet Engagements 2,846 1,937 2,631 2,360 9,774 Subtotal Internet Revenue 12,378 11,375 12,160 12,293 48,206 Mobile Subscriptions 1,340 1,654 1,912 1,976 6,882 Mobile Ratable Licenses 4,002 4,605 6,426 6,787 21,820 Subtotal Mobile Revenue 5,342 6,259 8,338 8,763 28,702 Total Revenue, Net $ 17,720 $ 17,634 $ 20,498 $ 21,056 $ 76,908 FY 2007 Internet Subscriptions $ 9,510 $ 9,620 $ 9,722 $ 9,461 $ 38,313 Internet Engagements 3,102 2,778 3,064 2,929 11,873 Subtotal Internet Revenue 12,612 12,398 12,786 12,390 50,186 Mobile Subscriptions 997 1,113 1,158 1,080 4,348 Mobile Ratable Licenses 2,206 3,203 3,443 4,368 13,220 Subtotal Mobile Revenue 3,203 4,316 4,601 5,448 17,568 Total Revenue, Net $ 15,815 $ 16,714 $ 17,387 $ 17,838 $ 67,754 FY 2006 Internet Subscriptions $ 9,281 $ 9,459 $ 9,499 $ 9,743 $ 37,982 Internet Engagements 3,896 2,792 2,419 3,034 12,141 Subtotal Internet Revenue 13,177 12,251 11,918 12,777 50,123 Mobile Subscriptions 539 488 855 962 2,844 Mobile Ratable Licenses - - 1,094 1,447 2,541 Subtotal Mobile Revenue 539 488 1,949 2,409 5,385 Total Revenue, Net $ 13,716 $ 12,739 $ 13,867 $ 15,186 $ 55,508 FY 2005 Internet Subscriptions $ 9,220 $ 9,314 $ 9,601 $ 9,315 $ 37,450 Internet Engagements 3,565 3,513 3,422 3,574 14,074 Subtotal Internet Revenue 12,785 12,827 13,023 12,889 51,524 Mobile Subscriptions 803 338 442 585 2,168 Total Revenue, Net $ 13,588 $ 13,165 $ 13,465 $ 13,474 $ 53,692

Keynote Systems, Inc. and Subsidiaries DEFERRED REVENUE (In thousands) (Unaudited) September 30, 2008 June 30, 2008 September 30, 2007 Deferred revenue, net Domestic $ 5,982 $ 6,300 $ 7,511 International 13,951 17,869 14,449 Total $ 19,933 $ 24,169 $ 21,960 Add back: unpaid deferred revenue Domestic $ 2,425 $ 2,288 $ 3,085 International 2,331 3,054 1,564 Total $ 4,756 $ 5,342 $ 4,649 Deferred revenue, gross Domestic $ 8,407 $ 8,588 $ 10,596 International 16,282 20,923 16,013 Total $ 24,689 $ 29,511 $ 26,609

SOURCE: Keynote Systems

Keynote Systems, Inc. Dan Berkowitz, 650-403-3305 (Public Relations) dberkowitz@keynote.com or Kirsten Chapman, 415-433-3777 (Investor Relations) kchapman@lhai.com