Document:

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                                                                   EXHIBIT 10.23

                         COMMON STOCK PURCHASE AGREEMENT

      THIS COMMON STOCK PURCHASE AGREEMENT (this "AGREEMENT") is entered into as
of April 1, 2003, (the "EFFECTIVE DATE") by and between WebSideStory, Inc., a
Delaware corporation (the "COMPANY"), and Jeff Lunsford (the "EXECUTIVE").

                                    RECITALS

      WHEREAS, the Executive is an employee of the Company; and

      WHEREAS, the Company desires to issue and sell to the Executive, and the
Executive desires to purchase, capital stock of the Company according to the
terms and subject to the conditions of this Agreement.

                                    AGREEMENT

      NOW, THEREFORE, in consideration of the mutual promises and covenants set
forth herein and for other good and valuable consideration, the receipt and
sufficiency of which are hereby acknowledged, the parties hereby agree as
follows:

      1.    Number of Shares and Price Per Share. The Executive agrees to
purchase from the Company, and the Company agrees to sell to the Executive, Two
Million (2,000,000) shares of the Company's Common Stock (the "STOCK") at a
purchase price of $0.001 per share (the "PURCHASE PRICE") or an aggregate price
of $2,000 payable to the Company in cash or check. The closing of such purchase
shall occur immediately upon execution of this Agreement.

      2.    Unvested Share Repurchase Option. In the event the Executive's
employment with the Company is terminated for any reason or no reason, with or
without Cause (as defined below), or if the Executive or the Executive's legal
representative attempts to sell, exchange, transfer, pledge or otherwise dispose
of ("TRANSFER") any shares purchased pursuant to this Agreement other than to a
Permitted Transferee (as defined below) which have not vested in the Executive
pursuant to Sections 2(a)(d-g) below (the "UNVESTED SHARES"), the Company shall
have the right to reacquire the Unvested Shares under the terms and subject to
the conditions set forth in this Section 2 (the "UNVESTED SHARE REPURCHASE
OPTION").

            (a)   Vesting of Shares. The Stock will vest in the Executive and
will become "VESTED SHARES" on and after the Effective Date in accordance with
the following schedule:

<TABLE>
<CAPTION>
               Date                                Portion Vested
               ----                                --------------
<S>                                     <C>
On the Effective Date                   25% of the Stock (consisting of
                                        500,000 shares)

For each full month of the Company's    the lesser of (i) 2.0833% of the
employment of the Executive following   Stock (an additional 41,666.67  shares) or
one month from the Effective Date       (ii) the remaining Unvested Shares.
</TABLE>

                                       1
<PAGE>

Provided, however, that the aggregate number of shares of Stock constituting
Vested Shares may not exceed the total number of shares of Stock purchased
pursuant to Section 1, and that such numbers shall be adjusted appropriately to
reflect any stock splits, stock dividends, recombinations, recapitalizations or
the like by the Company.

            (b)   Exercise of Unvested Share Repurchase Option. Except as
provided in Sections 2(d) and 2(f) below, if the Executive's employment with the
Company is terminated for any reason or for no reason, with or without Cause, or
if the Executive or the Executive's legal representative attempts to Transfer
any Unvested Shares other than as allowed in this Agreement, the Company may
exercise the Unvested Share Repurchase Option by written notice to the Escrow
Agent (as defined in Section 13 below) and to the Executive or the Executive's
legal representative within sixty (60) days after such termination or after the
Company has received notice of the attempted disposition.

            (c)   Payment for Shares and Return of Shares. Payment by the
Company to the Escrow Agent on behalf of the Executive or the Executive's legal
representative shall be made in cash within sixty (60) days after the date of
the mailing of the written notice of exercise of the Unvested Share Repurchase
Option. The purchase price per share for the shares being repurchased by the
Company shall be an amount equal to the Purchase Price.

            (d)   Accelerated Vesting upon Termination without Cause or for Good
Reason. The other provisions of Section 2 notwithstanding, in the event that the
Company terminates the Executive's employment without Cause or the Executive
terminates his employment for Good Reason, the Unvested Shares Repurchase Option
shall lapse with respect to fifty (50%) of the Unvested Shares on the date of
such termination and such shares shall immediately become Vested Shares;
provided that if such termination by the Company without Cause or by the
Executive for Good Reason occurs within one hundred thirty-five (135) days prior
to or twelve (12) months following the date the Company enters into an agreement
for a Change of Control (as defined below) the Company's rights to repurchase
Unvested Shares shall lapse in full and such shares shall immediately become
Vested Shares.

            (e)   Accelerated Vesting upon a Change of Control. The other
provisions of Section 2 notwithstanding, upon a Change of Control and subject to
Executive's continued employment with the Company, the Unvested Share Repurchase
Option shall lapse with respect to seventy-five percent (75%) of the then
remaining Unvested Shares and such shares shall immediately become Vested
Shares.

            (f)   Accelerated Vesting upon Termination for Death or Disability.
In the event that, following Executive's relocation to California, the Company
terminates Executive's employment for (i) Executive's failure to perform the
essential functions of Executive's position, with reasonable accommodation, due
to a mental or physical disability, or (ii) Executive's death, the Unvested
Share Repurchase Option shall lapse with respect to twenty-five percent (25%) of
the Unvested Shares on the date of such termination and such shares shall
immediately become Vested Shares.

            (g)   Definitions.

                  (i)   "CAUSE" is defined as: (i) acts or omissions
constituting gross negligence, recklessness or willful misconduct on the part of
Executive with respect to Executive's obligations or otherwise relating to the
business of Company; (ii) Executive's material breach of this Agreement or any
other agreement between Executive and Company; (iii) Executive's conviction or
entry of a plea of nolo contendere for fraud or embezzlement, or any felony or
crime of moral

                                       2
<PAGE>

turpitude; or (iv) Executive's willful neglect of duties. In the case of
subparts (i), (ii) and (iv), unless the deficiency cannot reasonably be cured,
no Cause shall exist if Executive cures such deficiency within ten (10) business
days after his receipt of notice from the Company. Executive shall have an
opportunity during any such 10-day period to appear before the Board, with his
counsel, and present such evidence as he may deem appropriate. Any final
decision that Cause exists, after notice and opportunity to present as described
above, if applicable, shall be made only by a majority of the Board.

                  (ii)  "CHANGE OF CONTROL" is defined as (A) a merger or
consolidation of the Company with or into another corporation or other entity
(with respect to which less than a majority of the outstanding voting power of
the surviving or consolidated corporation is held by persons who are
shareholders of the Corporation immediately prior to such event); (B) the sale
or transfer of all or substantially all of the properties and assets of the
Company; (C) any purchase by any party (or group of affiliated parties) of
shares of capital stock of the Company (either through a negotiated stock
purchase or a tender for such shares), the effect of which is that such party
(or group of affiliated parties) that did not beneficially own a majority of the
voting power of the outstanding shares of capital stock of the Company
immediately prior to such purchase beneficially owns at least a majority of such
voting power immediately after such purchase; (D) the redemption or repurchase
of shares representing a majority of the voting power of the outstanding shares
of capital stock of the Company; or (E) of any other change of control of fifty
percent (50%) or more of the outstanding voting power of the Company in a single
transaction or series of related transactions, but for purposes of this
subsection (E) excluding an underwritten public offering by the Company of
shares of Common Stock or other securities.

                  (iii) "GOOD REASON" shall be deemed to exist following the
occurrence of any of the following events: (i) a reduction in Executive's title
or position or an assignment to Executive of operational authority or duties
which are materially inconsistent with the usual and customary operational
authority and duties of a person in Executive's position in similarly-situated
companies, (ii) a reduction in Executive's Base Salary or Performance Bonus
target or any failure to pay any compensation or benefits earned by Executive,
provided that Good Reason shall not be deemed for such non-payment unless
Executive provides written notice to the Company thereof and following a
reasonable cure period, or (iii) the Company's requiring Executive to relocate
to any place outside a fifty (50) mile radius of the Company's current
headquarters.

            (h)   Restrictions on Transfer of Unvested Shares. Except for
Permitted Transfers, the Executive may not Transfer any Unvested Shares of the
Stock still subject to the Unvested Share Repurchase Option. "PERMITTED
TRANSFERS" shall include Executive's sale or assignment, with or without
consideration, of any Unvested Shares to any spouse or member of Executive's
immediate family, or to a custodian, trustee (including a trustee of a voting
trust), executor, or other fiduciary for the account of the Executive's spouse
or members of the Executive's immediate family, or to a trust for the
Executive's own self, or a charitable remainder trust (except any donation to a
charitable trust designed specifically to circumvent this right)(each a
"PERMITTED TRANSFEREE"); provided, that each such transferee or assignee, prior
to the completion of the sale, transfer or assignment shall have executed
documents assuming the obligations of Executive under this Agreement with
respect to the transferred securities.

      3.    Warranties and Representations. In connection with the proposed
purchase of the Stock, the Executive hereby agrees, represents and warrants as
follows:

                                       3
<PAGE>

            (a)   The Executive is purchasing the Stock solely for the
Executive's own account for investment and not with a view to, or for resale in
connection with, any distribution thereof within the meaning of the Securities
Act of 1933, as amended (the "SECURITIES ACT"). The Executive further represents
that the Executive does not have any present intention of selling, offering to
sell or otherwise disposing of or distributing the Stock or any portion thereof,
and that the entire legal and beneficial interest of the Stock the Executive is
purchasing is being purchased for, and will be held for the account of, the
Executive only and neither in whole nor in part for any other person.

            (b)   The Executive has all requisite power and authority to
purchase the Stock being purchased hereunder and to otherwise comply with and
perform its obligations hereunder.

            (c)   The Executive is aware of the Company's business affairs and
financial condition and has acquired sufficient information about the Company to
reach an informed and knowledgeable decision to acquire the Stock. The Executive
further represents and warrants that the Executive has received all such
information as the Executive deems necessary and appropriate to enable the
Executive to evaluate the financial risk inherent in making an investment in the
Stock.

            (d)   The Executive realizes that the Executive's purchase of the
Stock will be a highly speculative investment, and the Executive is able,
without impairing the Executive's financial condition, to hold the Stock for an
indefinite period of time and to suffer a complete loss on the Executive's
investment.

            (e)   The Company has disclosed to the Executive that:

                  (i)   The sale of the Stock has not been registered under the
Securities Act, and the Stock must be held indefinitely unless a transfer of it
is subsequently registered under the Securities Act or an exemption from such
registration is available, and that the Company is under no obligation to
register the Stock;

                  (ii)  The Company will make a notation in its records of the
aforementioned restrictions on transfer and legends.

            (f)   The Executive is aware of the provisions of Rule 144,
promulgated under the Securities Act, which, in substance, permits limited
public resale of "restricted securities" acquired, directly or indirectly, from
the issuer thereof (or an affiliate of such issuer), in a non-public offering
subject to the satisfaction of certain conditions, including among other things:
the resale occurring not less than one year from the date the Executive has
purchased and paid for the Stock; the availability of certain public information
concerning the Company; the sale being through a broker in an unsolicited
"broker's transaction" or in a transaction directly with a market maker (as said
term is defined under the Securities Exchange Act of 1934, as amended); and that
any sale of the Stock may be made by the Executive only in limited amounts
during any three-month period not exceeding specified limitations. The Executive
further represents that the Executive understands that at the time the Executive
wishes to sell the Stock there may be no public market upon which to make such a
sale, and that, even if such a public market then exists, the Company may not be
satisfying the current public information requirements of Rule 144, and that, in
such event, the Executive would be precluded from selling the Stock under Rule
144 even if the one-year minimum holding period had been satisfied. The
Executive represents that the Executive understands that in the event all of the
requirements of Rule 144 are not satisfied, registration under the Securities
Act or compliance with an exemption from registration will be required; and
that, notwithstanding the fact that Rule 144 is not exclusive, the staff of the
Securities and Exchange Commission has expressed its opinion that persons
proposing to sell private placement securities other than in a registered
offering and

                                       4
<PAGE>

otherwise than pursuant to Rule 144 will have a substantial burden of proof in
establishing that an exemption from registration is available for such offers or
sales, and that such persons and their respective brokers who participate in
such transactions do so at their own risk.

            (g)   Without in any way limiting the Executive's representations
and warranties set forth above, the Executive further agrees that the Executive
shall in no event make any disposition of all or any portion of the Stock which
he or she is purchasing unless and until:

                  (i)   There is then in effect a Registration Statement under
the Securities Act covering such proposed disposition and such disposition is
made in accordance with said Registration Statement; or

                  (ii)  The Executive shall have (1) notified the Company of the
proposed disposition and furnished the Company with a detailed statement of the
circumstances surrounding the proposed disposition, and (2) furnished the
Company with an opinion of the Executive's own counsel to the effect that such
disposition will not require registration of such shares under the Securities
Act, and such opinion of the Executive's counsel shall have been concurred in by
counsel for the Company, and the Company shall have advised the Executive of
such concurrence.

      4.    Right of First Refusal.

            (a)   Company's Right of First Refusal. In the event the Executive
or a Permitted Transferee desires to Transfer any Vested Shares other than in a
Permitted Transfer (a "TRANSFERRING HOLDER"), it shall first provide notice in
writing to the Company. The notice shall name the proposed transferee and
specify the number of Vested Shares to be transferred, the price per share, and
the terms of payment of the purchase price. The Board shall have thirty (30)
days from the date of receipt of such notice within which to exercise its right
to purchase all of the Vested Shares which the Executive proposes to be
transferred at the purchase price and on the terms stated in the notice.

            (b)   Permitted Transfer Upon Failure to Buy All Vested Shares. If
all of the Vested Shares proposed to be transferred are not purchased by the
Company, then the Transferring Holder may Transfer such Vested Shares proposed
to be Transferred, at any time within ninety (90) days from the date of the
original notice, to the person, and at the price and terms specified therein;
provided, that such purchaser or transferee agrees to receive and hold said
Vested Shares subject to all of the terms, conditions and restrictions of this
Agreement.

      5.    Termination Events. Section 4 shall terminate upon the earliest to
occur of any one of the following events (and shall not apply to any transfer by
the Executive in connection with any such event):

            (a)   The liquidation, dissolution or indefinite cessation of the
business operations of the Company;

            (b)   An underwritten public offering by the Company of shares of
its Common Stock pursuant to a registration statement under the Securities Act;
or

            (c)   a Change of Control.

      6.    Transfer of Rights. The Company shall have the right to assign its
rights under the Unvested Share Repurchase Option and the Right of First Refusal
to one or more Affiliates (as defined below). "AFFILIATES" means any person or
entity that directly or indirectly through one or more intermediaries controls,
is controlled by, or is under common control with the Company.

                                       5
<PAGE>

      7.    Market Stand-Off Agreement. The Executive, if requested by the
Company or an underwriter of Common stock (or other securities) of the Company,
shall agree not to sell or otherwise transfer or dispose of any securities held
(beneficially or otherwise) by the Executive during the one hundred eighty (180)
day period following the effective date of a registration statement of the
Company filed under the Securities Act.

      8.    Stock Dividends, etc. If, from time to time, there is any stock
dividend, stock split or other change in the character or amount of any of the
outstanding stock of the Company, then in such event any and all new substituted
or additional securities to which the Executive is entitled by reason of the
Executive's ownership of the shares acquired pursuant to this Agreement shall be
considered Stock and shall be immediately subject to all the terms, conditions
and restrictions of this Agreement with the same force and effect as the shares
subject to all the terms, conditions and restrictions of this Agreement
immediately before such event.

      9.    Legends. All certificates representing any shares of Stock subject
to the provisions of this Agreement shall have endorsed thereon the following
legends (together with any legend required by applicable law):

      "THE SHARES REPRESENTED BY THIS CERTIFICATE ARE SUBJECT TO A REPURCHASE
      OPTION, A RIGHT OF FIRST REFUSAL IN FAVOR OF THE COMPANY OR ITS ASSIGNEE,
      AND OTHER RESTRICTIONS ON TRANSFER SET FORTH IN AN AGREEMENT BETWEEN THE
      COMPANY AND THE REGISTERED HOLDER, OR HIS OR HER PREDECESSOR IN INTEREST,
      A COPY OF WHICH IS ON FILE AT THE PRINCIPAL OFFICE OF THIS COMPANY."

      "THE SECURITIES EVIDENCED BY THIS CERTIFICATE HAVE NOT BEEN REGISTERED
      UNDER THE SECURITIES ACT OF 1933, AS AMENDED, AND MAY NOT BE SOLD,
      TRANSFERRED, ASSIGNED OR HYPOTHECATED UNLESS THERE IS AN EFFECTIVE
      REGISTRATION STATEMENT UNDER SUCH ACT COVERING SUCH SECURITIES, THE SALE
      IS MADE IN ACCORDANCE WITH RULE 144 UNDER THE ACT, OR THE COMPANY RECEIVES
      AN OPINION OF COUNSEL OF THESE SECURITIES REASONABLY SATISFACTORY TO THE
      COMPANY, STATING THAT SUCH SALE, TRANSFER, ASSIGNMENT OR HYPOTHECATION IS
      EXEMPT FROM THE REGISTRATION AND PROSPECTUS DELIVERY REQUIREMENTS OF SUCH
      ACT."

      10.   Transfers in Violation of Agreement. The Company shall not be
required (i) to transfer on its books any shares of capital stock of the Company
which shall have been sold or transferred in violation of any of the provisions
set forth in this Agreement or (ii) to treat as owner of such shares or to
accord the right to vote as such owner or to pay dividends to any transferee to
whom such shares shall have been so transferred.

      11.   Rights as Stockholder. Subject to the provisions of this Agreement,
the Executive shall, during the term of this Agreement, exercise all rights and
privileges of a shareholder of the Company with respect to the Stock.

                                       6
<PAGE>

      12.   Further Instruments. The parties agree to execute such further
instruments and to take such further action as may reasonably be necessary to
carry out the intent of this Agreement.

      13.   Notice. Any notice required or permitted hereunder shall be given in
writing and shall be deemed effectively given upon personal delivery or upon
deposit in the United States Post Office, by registered or certified mail with
postage and fees prepaid, addressed to the other party hereto at the address
hereinafter shown below the Executive's signature or at such other address as
such party may designate by ten (10) days' advance written notice to the other
party hereto.

      14.   Successors and Assigns. This Agreement shall inure to the benefit of
the successors and assigns of the Company and, subject to the restrictions on
transfer herein set forth, be binding upon the Executive, the Executive's heirs,
executors, administrators, successors and assigns.

      15.   Entire Agreement; Amendments. This Agreement, together with the
Exhibits hereto, shall be construed under the laws of the State of Delaware (as
it applies to agreements between Delaware residents, entered into and to be
performed entirely within Delaware), and constitutes the entire agreement of the
parties with respect to the subject matter hereof superseding all prior written
or oral agreements, and no amendment or addition hereto shall be deemed
effective unless agreed to in writing by the parties hereto.

      16.   Right to Specific Performance. The Executive agrees that the Company
shall be entitled to a decree of specific performance of the terms hereof or an
injunction restraining violation of this Agreement, said right to be in addition
to any other remedies available to the Company.

      17.   Separability. If any provision of this Agreement is held by a court
of competent jurisdiction to be invalid, void or unenforceable, the remaining
provisions shall nevertheless continue in full force and effect without being
impaired or invalidated in any way and shall be construed in accordance with the
purposes and tenor and effect of this Agreement.

      18.   Tax Election Notification. The Executive shall notify the Company in
writing if the Executive files an election pursuant to Section 83(b) of the
Code, to be filed with the Internal Revenue Service within thirty (30) days of
the date of the sale herein contemplated. The Company intends, in the event it
does not receive from the Executive evidence of such filing, to claim a tax
deduction for any amount which would otherwise be taxable to the Executive in
the absence of such an election.

      19.   Independent Counsel. Each of the parties hereto acknowledges and
agrees that Gray Cary Ware & Freidenrich LLP is counsel to the Company and not
to the Executive individually and that each such party has had reasonable
opportunity to consult with separate counsel with respect to the matters
contained herein and is not relying on any representations of any party with
respect to the terms of this Agreement not otherwise contained herein.

                   REMAINDER OF PAGE INTENTIONALLY LEFT BLANK.

                                       7
<PAGE>

THE PARTIES TO THIS AGREEMENT HAVE READ THE FOREGOING AGREEMENT AND FULLY
UNDERSTAND EACH AND EVERY PROVISION CONTAINED HEREIN. WHEREFORE, THE PARTIES
HAVE EXECUTED THIS AGREEMENT ON THE DATES SHOWN BELOW.

                                       JEFF LUNSFORD

Dated: 3-31-03                         /s/ Jeff Lunsford
                                       Jeff Lunsford

                                       ADDRESS: 4275 LAKE HAVEN DR
                                                ATLANTA, GA 30319

                                       WEBSIDESTORY, INC.

Dated: 3-31-03                         By: /s/ Kurt R. Jaggers
                                          --------------------------
                                       Name: Kurt R. Jaggers

                                       Title: Director

                                       ADDRESS:  10182 Telesis Court, 6th Floor
                                                 San Diego, CA 92121

                  SIGNATURE PAGE TO LUNSFORD PURCHASE AGREEMENT<PAGE>
                                                                   Exhibit 10.24

                         COMMON STOCK PURCHASE AGREEMENT

      THIS COMMON STOCK PURCHASE AGREEMENT (this "AGREEMENT") is entered into as
of July 29, 2003, (the "EFFECTIVE DATE") by and between WebSideStory, Inc., a
Delaware corporation (the "COMPANY"), and Michael Christian (the "EXECUTIVE").

                                    RECITALS

      WHEREAS, the Executive is an employee of the Company; and

      WHEREAS, the Company desires to issue and sell to the Executive, and the
Executive desires to purchase, capital stock of the Company according to the
terms and subject to the conditions of this Agreement.

                                    AGREEMENT

      NOW, THEREFORE, in consideration of the mutual promises and covenants set
forth herein and for other good and valuable consideration, the receipt and
sufficiency of which are hereby acknowledged, the parties hereby agree as
follows:

      1. Number of Shares and Price Per Share. The Executive agrees to purchase
from the Company, and the Company agrees to sell to the Executive, Five Hundred
Fifty-Three Thousand Six Hundred Thirty-Five (553,635) shares of the Company's
Common Stock (the "STOCK") at a purchase price of $0.001 per share (the
"PURCHASE PRICE") or an aggregate price of $553.64 payable to the Company in
cash or check. The closing of such purchase shall occur immediately upon
execution of this Agreement.

      2. Unvested Share Repurchase Option. In the event the Executive's
employment with the Company is terminated for any reason or no reason, or if the
Executive or the Executive's legal representative attempts to sell, exchange,
transfer, pledge or otherwise dispose of ("TRANSFER") any shares purchased
pursuant to this Agreement other than to a Permitted Transferee (as defined
below) which have not vested in the Executive pursuant to Sections 2(a)(d-g)
below (the "UNVESTED SHARES"), the Company shall have the right to reacquire the
Unvested Shares under the terms and subject to the conditions set forth in this
Section 2 (the "UNVESTED SHARE REPURCHASE OPTION").

            (a) Vesting of Shares. The Stock will vest in the Executive and will
become "VESTED SHARES" on and after the Effective Date in accordance with the
following schedule:

<TABLE>
<CAPTION>
Date                                                   Portion Vested
----                                                   --------------
<S>                                                   <C>
On the Effective Date                                    370,000 shares
For each full month of the Company's employment       7,651.4583 shares
of the Executive following the Effective Date
</TABLE>

Provided, however, that the aggregate number of shares of Stock constituting
Vested Shares may not exceed the total number of shares of Stock purchased
pursuant to Section 1, and that such numbers

                                       1
<PAGE>

shall be adjusted appropriately to reflect any stock splits, stock dividends,
recombinations, recapitalizations or the like by the Company.

            (b) Exercise of Unvested Share Repurchase Option. If the Executive's
employment with the Company is terminated for any reason or for no reason, or if
the Executive or the Executive's legal representative attempts to Transfer any
Unvested Shares other than as allowed in this Agreement, the Company may
exercise the Unvested Share Repurchase Option by written notice to the Executive
or the Executive's legal representative within sixty (60) days after such
termination or after the Company has received notice of the attempted
disposition.

            (c) Payment for Shares and Return of Shares. Payment by the Company
to the Executive or the Executive's legal representative shall be made in cash
within sixty (60) days after the date of the mailing of the written notice of
exercise of the Unvested Share Repurchase Option. The purchase price per share
for the shares being repurchased by the Company shall be an amount equal to the
Purchase Price.

            (d) Accelerated Vesting upon a Change of Control. The other
provisions of Section 2 notwithstanding, upon a Change of Control and subject to
Executive's continued employment with the Company, the Unvested Share Repurchase
Option shall lapse with respect to all remaining Unvested Shares and such shares
shall immediately become Vested Shares.

            (e) Accelerated Vesting upon Termination for Death or Disability. In
the event that the Company terminates Executive's employment for (i) Executive's
failure to perform the essential functions of Executive's position, with
reasonable accommodation, due to a mental or physical disability, or (ii)
Executive's death, the Unvested Share Repurchase Option shall lapse on the date
of such termination and such shares shall immediately become Vested Shares.

            (f) Definitions.

                  (i) "CHANGE OF CONTROL" is defined as (A) a merger or
consolidation of the Company with or into another corporation or other entity
(with respect to which less than a majority of the outstanding voting power of
the surviving or consolidated corporation is held by persons who are
shareholders of the Company immediately prior to such event); (B) the sale or
transfer of all or substantially all of the properties and assets of the
Company; (C) any purchase by any party (or group of affiliated parties) of
shares of capital stock of the Company (either through a negotiated stock
purchase or a tender for such shares), the effect of which is that such party
(or group of affiliated parties) that did not beneficially own a majority of the
voting power of the outstanding shares of capital stock of the Company
immediately prior to such purchase beneficially owns at least a majority of such
voting power immediately after such purchase; (D) the redemption or repurchase
of shares representing a majority of the voting power of the outstanding shares
of capital stock of the Company; or (E) of any other change of control of fifty
percent (50%) or more of the outstanding voting power of the Company in a single
transaction or a series of related transactions, but for purposes of this
subsection (E) excluding an underwritten public offering by the Company of
shares of Common Stock or other securities.

            (g) Restrictions on Transfer of Unvested Shares. Except for
Permitted Transfers, the Executive may not Transfer any Unvested Shares of the
Stock still subject to the Unvested Share Repurchase Option. "PERMITTED
TRANSFERS" shall include Executive's sale or assignment, with or without
consideration, of any Unvested Shares to any spouse or member of Executive's
immediate family, or to a custodian, trustee (including a trustee of a voting
trust), executor, or other fiduciary for the account of the Executive's spouse
or members of the Executive's immediate family, or to a trust for the
Executive's own self, or a charitable remainder trust (except any donation to a
charitable trust designed specifically to circumvent this right) (each a
"PERMITTED TRANSFEREE"); provided, that each

                                       2
<PAGE>

such transferee or assignee, prior to the completion of the sale, transfer or
assignment shall have executed documents assuming the obligations of Executive
under this Agreement with respect to the transferred securities.

      3. Warranties and Representations. In connection with the proposed
purchase of the Stock, the Executive hereby agrees, represents and warrants as
follows:

            (a) The Executive is purchasing the Stock solely for the Executive's
own account for investment and not with a view to, or for resale in connection
with, any distribution thereof within the meaning of the Securities Act of 1933,
as amended (the "SECURITIES ACT"). The Executive further represents that the
Executive does not have any present intention of selling, offering to sell or
otherwise disposing of or distributing the Stock or any portion thereof, and
that the entire legal and beneficial interest of the Stock the Executive is
purchasing is being purchased for, and will be held for the account of, the
Executive only and neither in whole nor in part for any other person.

            (b) The Executive has all requisite power and authority to purchase
the Stock being purchased hereunder and to otherwise comply with and perform its
obligations hereunder.

            (c) The Executive is aware of the Company's business affairs and
financial condition and has acquired sufficient information about the Company to
reach an informed and knowledgeable decision to acquire the Stock. The Executive
further represents and warrants that the Executive has received all such
information as the Executive deems necessary and appropriate to enable the
Executive to evaluate the financial risk inherent in making an investment in the
Stock.

            (d) The Executive realizes that the Executive's purchase of the
Stock will be a highly speculative investment, and the Executive is able,
without impairing the Executive's financial condition, to hold the Stock for an
indefinite period of time and to suffer a complete loss on the Executive's
investment.

            (e) The Company has disclosed to the Executive that:

                  (i) The sale of the Stock has not been registered under the
Securities Act, and the Stock must be held indefinitely unless a transfer of it
is subsequently registered under the Securities Act or an exemption from such
registration is available, and that the Company is under no obligation to
register the Stock;

                  (ii) The Company will make a notation in its records of the
aforementioned restrictions on transfer and legends.

            (f) The Executive is aware of the provisions of Rule 144,
promulgated under the Securities Act, which, in substance, permits limited
public resale of "restricted securities" acquired, directly or indirectly, from
the issuer thereof (or an affiliate of such issuer), in a non-public offering
subject to the satisfaction of certain conditions, including among other things:
the resale occurring not less than one year from the date the Executive has
purchased and paid for the Stock; the availability of certain public information
concerning the Company; the sale being through a broker in an unsolicited
"broker's transaction" or in a transaction directly with a market maker (as said
term is defined under the Securities Exchange Act of 1934, as amended); and that
any sale of the Stock may be made by the Executive only in limited amounts
during any three-month period not exceeding specified limitations. The Executive
further represents that the Executive understands that at the time the Executive
wishes to sell the Stock there may be no public market upon which to make such a
sale, and that, even if such a public market then exists, the Company may not be
satisfying the current public information requirements of Rule 144, and that, in
such event, the Executive would be

                                       3
<PAGE>

precluded from selling the Stock under Rule 144 even if the one-year minimum
holding period had been satisfied. The Executive represents that the Executive
understands that in the event all of the requirements of Rule 144 are not
satisfied, registration under the Securities Act or compliance with an exemption
from registration will be required; and that, notwithstanding the fact that Rule
144 is not exclusive, the staff of the Securities and Exchange Commission has
expressed its opinion that persons proposing to sell private placement
securities other than in a registered offering and otherwise than pursuant to
Rule 144 will have a substantial burden of proof in establishing that an
exemption from registration is available for such offers or sales, and that such
persons and their respective brokers who participate in such transactions do so
at their own risk.

            (g) Without in any way limiting the Executive's representations and
warranties set forth above, the Executive further agrees that the Executive
shall in no event make any disposition of all or any portion of the Stock which
he or she is purchasing unless and until:

                  (i) There is then in effect a Registration Statement under the
Securities Act covering such proposed disposition and such disposition is made
in accordance with said Registration Statement; or

                  (ii) The Executive shall have (1) notified the Company of the
proposed disposition and furnished the Company with a detailed statement of the
circumstances surrounding the proposed disposition, and (2) furnished the
Company with an opinion of the Executive's own counsel to the effect that such
disposition will not require registration of such shares under the Securities
Act, and such opinion of the Executive's counsel shall have been concurred in by
counsel for the Company, and the Company shall have advised the Executive of
such concurrence.

      4. Right of First Refusal.

            (a) Company's Right of First Refusal. In the event the Executive or
a Permitted Transferee desires to Transfer any Vested Shares other than in a
Permitted Transfer (a "TRANSFERRING HOLDER"), it shall first provide notice in
writing to the Company. The notice shall name the proposed transferee and
specify the number of Vested Shares to be transferred, the price per share, and
the terms of payment of the purchase price. The Board shall have thirty (30)
days from the date of receipt of such notice within which to exercise its right
to purchase all of the Vested Shares which the Executive proposes to be
transferred at the purchase price and on the terms stated in the notice.

            (b) Permitted Transfer Upon Failure to Buy All Vested Shares. If all
of the Vested Shares proposed to be transferred are not purchased by the
Company, then the Transferring Holder may Transfer such Vested Shares proposed
to be Transferred, at any time within ninety (90) days from the date of the
original notice, to the person, and at the price and terms specified therein;
provided, that such purchaser or transferee agrees to receive and hold said
Vested Shares subject to all of the terms, conditions and restrictions of this
Agreement.

      5. Termination Events. Section 4 shall terminate upon the earliest to
occur of any one of the following events (and shall not apply to any transfer by
the Executive in connection with any such event):

            (a) The liquidation, dissolution or indefinite cessation of the
business operations of the Company;

            (b) An underwritten public offering by the Company of shares of its
Common Stock pursuant to a registration statement under the Securities Act; or

                                       4
<PAGE>

            (c) a Change of Control.

      6. Transfer of Rights. The Company shall have the right to assign its
rights under the Unvested Share Repurchase Option and the Right of First Refusal
to one or more Affiliates (as defined below). "AFFILIATES" means any person or
entity that directly or indirectly through one or more intermediaries controls,
is controlled by, or is under common control with the Company.

      7. Market Stand-Off Agreement. The Executive, if requested by the Company
or an underwriter of Common stock (or other securities) of the Company, shall
agree not to sell or otherwise transfer or dispose of any securities held
(beneficially or otherwise) by the Executive during the one hundred eighty (180)
day period following the effective date of a registration statement of the
Company filed under the Securities Act.

      8. Stock Dividends, etc. If, from time to time, there is any stock
dividend, stock split or other change in the character or amount of any of the
outstanding stock of the Company, then in such event any and all new substituted
or additional securities to which the Executive is entitled by reason of the
Executive's ownership of the shares acquired pursuant to this Agreement shall be
considered Stock and shall be immediately subject to all the terms, conditions
and restrictions of this Agreement with the same force and effect as the shares
subject to all the terms, conditions and restrictions of this Agreement
immediately before such event.

      9. Legends. All certificates representing any shares of Stock subject to
the provisions of this Agreement shall have endorsed thereon the following
legends (together with any legend required by applicable law):

      "THE SHARES REPRESENTED BY THIS CERTIFICATE ARE SUBJECT TO A REPURCHASE
      OPTION, A RIGHT OF FIRST REFUSAL IN FAVOR OF THE COMPANY OR ITS ASSIGNEE,
      AND OTHER RESTRICTIONS ON TRANSFER SET FORTH IN AN AGREEMENT BETWEEN THE
      COMPANY AND THE REGISTERED HOLDER, OR HIS OR HER PREDECESSOR IN INTEREST,
      A COPY OF WHICH IS ON FILE AT THE PRINCIPAL OFFICE OF THIS COMPANY."

      "THE SECURITIES EVIDENCED BY THIS CERTIFICATE HAVE NOT BEEN REGISTERED
      UNDER THE SECURITIES ACT OF 1933, AS AMENDED, AND MAY NOT BE SOLD,
      TRANSFERRED, ASSIGNED OR HYPOTHECATED UNLESS THERE IS AN EFFECTIVE
      REGISTRATION STATEMENT UNDER SUCH ACT COVERING SUCH SECURITIES, THE SALE
      IS MADE IN ACCORDANCE WITH RULE 144 UNDER THE ACT, OR THE COMPANY RECEIVES
      AN OPINION OF COUNSEL OF THESE SECURITIES REASONABLY SATISFACTORY TO THE
      COMPANY, STATING THAT SUCH SALE, TRANSFER, ASSIGNMENT OR HYPOTHECATION IS
      EXEMPT FROM THE REGISTRATION AND PROSPECTUS DELIVERY REQUIREMENTS OF SUCH
      ACT."

      10. Transfers in Violation of Agreement. The Company shall not be required
(i) to transfer on its books any shares of capital stock of the Company which
shall have been sold or transferred in violation of any of the provisions set
forth in this Agreement or (ii) to treat as owner of such shares or to accord
the right to vote as such owner or to pay dividends to any transferee to whom
such shares shall have been so transferred.

                                       5
<PAGE>

      11. Rights as Stockholder. Subject to the provisions of this Agreement,
the Executive shall, during the term of this Agreement, exercise all rights and
privileges of a shareholder of the Company with respect to the Stock.

      12. Further Instruments. The parties agree to execute such further
instruments and to take such further action as may reasonably be necessary to
carry out the intent of this Agreement.

      13. Notice. Any notice required or permitted hereunder shall be given in
writing and shall be deemed effectively given upon personal delivery or upon
deposit in the United States Post Office, by registered or certified mail with
postage and fees prepaid, addressed to the other party hereto at the address
hereinafter shown below the Executive's signature or at such other address as
such party may designate by ten (10) days' advance written notice to the other
party hereto.

      14. Successors and Assigns. This Agreement shall inure to the benefit of
the successors and assigns of the Company and, subject to the restrictions on
transfer herein set forth, be binding upon the Executive, the Executive's heirs,
executors, administrators, successors and assigns.

      15. Entire Agreement; Amendments. This Agreement, together with the
Exhibits hereto, shall be construed under the laws of the State of Delaware (as
it applies to agreements between Delaware residents, entered into and to be
performed entirely within Delaware), and constitutes the entire agreement of the
parties with respect to the subject matter hereof superseding all prior written
or oral agreements, and no amendment or addition hereto shall be deemed
effective unless agreed to in writing by the parties hereto.

      16. Right to Specific Performance. The Executive agrees that the Company
shall be entitled to a decree of specific performance of the terms hereof or an
injunction restraining violation of this Agreement, said right to be in addition
to any other remedies available to the Company.

      17. Separability. If any provision of this Agreement is held by a court of
competent jurisdiction to be invalid, void or unenforceable, the remaining
provisions shall nevertheless continue in full force and effect without being
impaired or invalidated in any way and shall be construed in accordance with the
purposes and tenor and effect of this Agreement.

      18. Tax Election Notification. The Executive shall notify the Company in
writing if the Executive files an election pursuant to Section 83(b) of the
Code, to be filed with the Internal Revenue Service within thirty (30) days of
the date of the sale herein contemplated. The Company intends, in the event it
does not receive from the Executive evidence of such filing, to claim a tax
deduction for any amount which would otherwise be taxable to the Executive in
the absence of such an election.

      19. Independent Counsel. Each of the parties hereto acknowledges and
agrees that Gray Cary Ware & Freidenrich LLP is counsel to the Company and not
to the Executive individually and

                                       6
<PAGE>

that each such party has had reasonable opportunity to consult with separate
counsel with respect to the matters contained herein and is not relying on any
representations of any party with respect to the terms of this Agreement not
otherwise contained herein.

                   REMAINDER OF PAGE INTENTIONALLY LEFT BLANK.

                                       7
<PAGE>

THE PARTIES TO THIS AGREEMENT HAVE READ THE FOREGOING AGREEMENT AND FULLY
UNDERSTAND EACH AND EVERY PROVISION CONTAINED HEREIN. WHEREFORE, THE PARTIES
HAVE EXECUTED THIS AGREEMENT ON THE DATES SHOWN BELOW.

                                       MICHAEL CHRISTIAN

Dated: July 29, 2003                            /s/ Michael Christian
                                       -----------------------------------------
                                       Michael Christian

                                       ADDRESS: 2135 29th Street
                                       San Diego, CA  92104

                                       WEBSIDESTORY, INC.

Dated: July 29, 2003                   By:      /s/ Jeff Lunsford
                                          --------------------------------------
                                       Name:    JEFF LUNSFORD
                                             -----------------------------------
                                       Title: CEO
                                              ----------------------------------
                                       ADDRESS:   10182 Telesis Court, 6th Floor
                                                  San Diego, CA 92121

                 SIGNATURE PAGE TO CHRISTIAN PURCHASE AGREEMENT

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