Exhibit 3.1

ARTICLES OF INCORPORATION
OF
CRITERION VENTURES, INC.

I, the undersigned, being a natural person more than eighteen (18) years of age, acting as incorporator of the above-named corporation (hereinafter
referred to as the "Corporation") under the provisions of the Nevada Business Corporation Act, do hereby adopt the following Articles of Incorporation for such Corporation.

ARTICLE
NAME

The name of the Corporation hereby created shall be:

Criterion
Ventures, Inc.

ARTICLE II
DURATION

The Corporation shall continue in existence perpetually unless sooner dissolved according to law.

ARTICLE III
PURPOSE

The purposes for which the Corporation is organized are:



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ARTICLE IV
CAPITAL STOCK

The total number of shares of all classes of stock which the Corporation shall have authority to issue is 300,000,000 shares, consisting of 10,000,000 shares of
preferred stock, par value $0.001 per share (hereinafter the "Preferred Stock"), and 290,000,000 shares of common stock, par value $0.001 per share (hereinafter the "Common Stock"). The Common Stock
shall be nonassessable and shall not have cumulative voting rights.



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ARTICLE V
DENIAL OF PRE-EMPTIVE RIGHTS

No holder of any shares of the Corporation, whether now or hereafter authorzied, shall have any pre-emptive or preferential rights to acquire shares
or securities of the Corporation.

ARTICLE VI
PAID IN CAPITAL

The Corporation will not commence business until the consideration of the value of at least $1,000.00 has been received by it as consideration for the issuance of
the shares.

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ARTICLE VII
INDEMNIFICATION OF DIRECTORS AND OFFICERS

The Corporation shall indemnify any and all persons who may serve or who have served at any time as directors or officers or who at the request of the Board of
Directors of the Corporation, may serve or any time have served as directors or officers of another corporation in which the Corporation at such time owned or may own shares of stock or of which it
was or may be a creditor, and their respective heirs, administrators, successors and assigns, against any and all expenses, including amounts paid upon judgments, counsel fees and amounts paid in
settlement (before or after suit is commenced), actually and necessarily by such persons in connection with the defense or settlement of any claim, action, suit or proceeding in which they, or any of
them, are made parties, or a party, or which may be asserted against them or any of them, by reason of being or having been directors or officers of the
Corporation, or of such other corporation, except in relation to matters as to which any such director or officer of the Corporation, or of such other corporation or former director or officer or
person shall be adjudged in any action, suit or proceeding to be liable for his own negligence or misconduct in the performance of his duty. Such indemnification shall be in addition to any other
rights to which those indemnified may be entitled under any law, by law, agreement, vote of shareholder or otherwise.

ARTICLE III
OFFICERS' AND DIRECTORS' CONTRACTS

No contract or other transaction between this Corporation and any other firm or corporation shall be affected by the fact that a director or officer of this
Corporation has an interest in, or is a director or officer of this Corporation or any other corporation. Any officer or director, individually or with others, may be a party to, or may have an
interest in, any transaction of this Corporation or any transaction in which this Corporation is a party or has an interest. Each person who is now or may become an officer or director of this
Corporation is hereby relieved from liability that he might otherwise obtain in the event such officer or director contracts with this Corporation for the benefit of himself or any firm or other
corporation in which he may have an interest, provided such officer or director acts in good faith.

ARTICLE IX
ADOPTION AND AMENDMENT OF BY-LAWS

The initial By Laws of the Corporation shall be adopted by its board of directors. The power to alter or amend or repeal the By-Laws or adopt new
By-Laws shall be vested in the board of directors, but the holders of common stock of the Corporation may also alter, amend, or repeal the By-Laws or adopt new
By-Laws. The By-Laws may contain any provisions for the regulation and management of the affairs of the Corporation not inconsistent with law or these Articles of
Incorporation.

ARTICLE X
REGISTERED OFFICE AND AGENT

The address of the initial registered office of the Corporation and its initial registered agent at such address is:

The
Corporation Trust Company of Nevada
One East First Street
Reno, Nevada 89501

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ARTICLE XI
DIRECTORS

The Corporation shall not have fewer directors than the number of shareholders who own an equity interest in the Corporation. At such time as the Corporation has
three (3) or more shareholders, it shall not have less than three (3) nor more than nine (9) directors. The permissible number of directors may be increased or decreased from time
to time by the board of directors in accordance with ¶78.330 of the Nevada Revised Statutes or any amendment or successor statute. The original board of directors shall be comprised of one
(1) person. The name and address of the person who is to serve as director until the first annual meeting of shareholders and until his successor is duly elected and shall qualify is

Scott
Sharp
5744 Emigration Canyon
Salt Lake City, Utah 84108

ARTICLE XII
INCORPORATOR

The name and address of the incorporator is:

Scott
Sharp
5744 Emigration Canyon
Salt Lake City, Utah 84108

Dated
this 17th day of January, 1986.

| | /s/SCOTT SHARPScott Sharp
| | -------------------------

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|STATE OF UTAH       |  | )   
|------------------- |  | ----
|                    |  | :ss.
|County of Salt Lake |  | )   

I,
/s/ [illegible] a notary public, hereby certify that on the 11th day of January, 1986, personally appeared before me Scott Sharp, being by me first duly sworn,
who acknowledged to me that he is the person who signed the foregoing document as the incorporator and that the statements contained herein are true.

|                       | /s/[ILLEGIBLE]             
|---------------------- | ---------------------------
|My commission expires: | N O T A R Y    P U B L I C 
|08/13/89               | Residing in Bountiful, Utah

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CERTIFICATE OF AMENDMENT TO
THE ARTICLES OF INCORPORATION OF
CRITERION VENTURES, INC.
(CHANGED HEREIN TO LARSONDAVIS INCORPORATED)

The following Certificate of Amendment to the articles of incorporation of the above-named corporation is adopted pursuant to the provisions of NRS 78.385 and
78.390. We, the undersigned as president and secretary of Criterion Venture, Inc. (changed herein to LarsonDavis Incorporated) (the "Company"), do hereby certify:



ARTICLE
I shall be amended to read as follows:

ARTICLE I
NAME OF CORPORATION

The name of the Corporation shall be:

LarsonDavis
Incorporated

In
addition to the foregoing, the board of directors adopted a resolution to consolidate the issued and outstanding shares of common stock of the Company on the basis of 25 shares to 1,
so that shareholders of the Company will receive 1 share of common stock for each 25 shares now held. Neither the par value of the common stock nor the number of authorized shares of commons tock was
changed in connection with the consolidation.

On
the authorization and recommendation of the board of directors, both of the foregoing resolutions were submitted to a vote at a special meeting of the shareholders of the Company duly
noticed and held October 30, 1987. The number of shares of the common stock of the Company outstanding on the record date and entitled to vote on the foregoing resolution was 81,666,664; the
resolutions, including the amendment to the articles of incorporation of the Company set forth above were approved in accordance with NRS 78.325 by the affirmative vote of 55,134,660 shares of common
stock with no shares voting against or abstaining. No other class of stock of the Company is outstanding or entitled to vote thereon.

DATED
this 30th day of October, 1987.

| |  | CRITERION VENTURES, INC.
| |  | ------------------------
| |  | By                      
| |  | By                      

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|STATE OF UTAH       |  | )  
|------------------- |  | ---
|                    |  | :ss
|COUNTY OF SALT LAKE |  | )  

On
this 30th day of October, 1987, before me, a notary public, personally appeared Brian G. Larson and Dan J. Johnson, being by me first duly sworn, who acknowledged to me that they are
the persons who executed the foregoing Certificate of Amendment to the Articles of Incorporation of Criterion Ventures, Inc.; and to the best of their knowledge, information, and belief, the
statements made in the Certificate of Amendment are true.

| | /s/PAULA CHAPMANNotary Public
Residing in Salt Lake County
| | ----------------------------------------------------------

My
Commission Expires:

07/06/89

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CERTIFICATE OF AMENDMENT TO
THE ARTICLES OF INCORPORATION OF
LARSONDAVIS INCORPORATED

Pursuant to the applicable provisions of the Corporation Laws of the state of Nevada, LarsonDavis Incorporated, a Nevada corporation (the
"Corporation"), amends its articles of incorporation as set forth herein.



ARTICLE XI
DIRECTORS



ARTICLE XIII
LIMITATION ON LIABILITY



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DATED
this 30th day of June, 1989.

| |  | LARSONDAVIS INCORPORATED
| |  | -------------------------
| |  | By                       
| |  | By                       

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|STATE OF UTAH       |  | )  
|------------------- |  | ---
|                    |  | :ss
|COUNTY OF SALT LAKE |  | )  

On
this 30th day of June, 1989, personally appeared before me Brian G. Larson and Dan J. Johnson, who being by me duly sworn did say that they are the president, and secretary,
respectively, of LarsonDavis Incorporated, a Nevada corporation, that they are the persons who executed the foregoing Certificate of Amendment to the Articles of Incorporation on behalf
of LarsonDavis Incorporated, and that the statements contained therein are true.

| | /s/PAULA CHAPMANNotary Public
Residing in Salt Lake County
| | ----------------------------------------------------------
| | My Commission Expires: 07/06/89                           

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LARSONDAVIS INCORPORATED

DESIGNATION OF RIGHTS, PRIVILEGES, AND PREFERENCES OF
1995 SERIES PREFERRED STOCK

Pursuant to the provisions of Nevada Revised Statutes, section 78.195, of the corporation laws of the state of Nevada, the undersigned corporation hereby
adopts the following Designation of Rights, Privileges, and Preferences of 1995 Series Preferred Stock (the "Designation"):

FIRST:The name of the Corporation is LarsonDavis Incorporated.

SECOND:The following resolution establishing a series of preferred stock designated as the "1995 Series Preferred
Stock" consisting of 200,000 shares, par value $0.001, was duly adopted by the board of
directors of the Corporation on May 26, 1995, in accordance with the articles of incorporation of the Corporation and the corporation laws of the state of Nevada:

RESOLVED,
there is hereby created a series of preferred stock of the Corporation to be designated as the "1995 Series Preferred Stock" consisting of 200,000 shares, par value
$0.001, with the following powers, preferences, rights, qualifications, limitations, and restrictions.

1.Liquidation.



2.Voting Rights.The 1995 Series Preferred Stock shall be voted with the Common Stock as a single class
and shall not be entitled to vote as a separate class, except to the extent that the consent of the holders of the 1995 Series Preferred Stock, voting as a class, is specifically required by
the provisions of the corporation laws of the state of Nevada, as now existing or as hereafter amended. Each holder of 1995 Series Preferred Stock shall be entitled to one vote for each share
of such stock held by him or her.

3.Dividends.



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4.Conversion.



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5.Redemption.



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6.Registration Rights.The Corporation shall immediately proceed to file a registration statement with
the Securities and Exchange Commission registering the resale of the Common Stock issuable or issued on conversion of the 1995 Series Preferred Stock (the "Conversion Stock") (but not the 1995
Series Preferred Stock itself) and shall thereafter diligently use its commercially reasonable best efforts to seek the effectiveness of such registration statement and to keep such
registration statement effective for a period of two years. The holder shall furnish to the Corporation in writing such information, and enter into such agreements as the Corporation may
reasonably request from such holder, all as may be required in connection with the registration described in this section or in compliance with applicable state securities laws. All expenses of
such registration, other than commissions or fees paid on the resale of the Common Stock by the holder, shall be paid by the Corporation.

7.Put Rights.In the event that the Corporation has not obtained the effectiveness of the registration
statement as set forth in section 6 on or before August 30, 1995, the holder shall have the right to require the Corporation, on 30 days prior written notice to the Corporation,
to purchase all, but not less than all, of the shares of the 1995 Series Preferred Stock on the terms set forth in that certain Agreement between the Corporation and Summit
Enterprises, Inc., of Virginia, dated May 24, 1995.

8.Mandatory Conversion.At any time subsequent to August 30, 1995, the Corporation can convert the
shares of 1995 Series Preferred Stock into shares of Common Stock, at the conversion rate set forth in section 4, by providing 30 days prior written notice to the holder; provided that, the
registration statement described in section 6 is current and effective both at the date of the notice and the date on which
the 1995 Series Preferred Stock is converted.

9.Additional Provisions.



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IN
WITNESS WHEREOF, the foregoing Designation of Rights, Privileges, and Preferences of 1995 Series Preferred Stock of the Corporation has been executed this 26th day of May,
1995.

|ATTEST: |                           | LARSONDAVIS INCORPORATED
|------- | ------------------------- | -------------------------
|By      | /s/DAN J. JOHNSON         |                          
|        | Dan J. Johnson, Secretary |                          

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|STATE OF UTAH       |  | )  
|------------------- |  | ---
|                    |  | :ss
|COUNTY OF SALT LAKE |  | )  

On
May 26, 1995, before me, the undersigned, a notary public in and for the above county and state, personally appeared Brian G. Larson and Dan J. Johnson, who being by me duly
sworn, did state, each for themselves, that he, Brian G. Larson is the president, and that he, Dan J. Johnson is the secretary of LarsonDavis Incorporated, a Nevada corporation, and that
the foregoing Designation of Rights, Privileges, and Preferences of 1995 Series Preferred Stock of LarsonDavis Incorporated was signed on behalf of such corporation by authority of
a resolution of its board of directors, and that the statements contained therein are true.

| | WITNESS MY HAND AND OFFICIAL SEAL.
| | ----------------------------------
| | /s/PAULA CHAPMANNotary Public     

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LARSONDAVIS INCORPORATED
DESIGNATION OF RIGHTS, PRIVILEGES, AND PREFERENCES OF
1998 SERIES A PREFERRED STOCK

Pursuant to the provisions of Nevada Revised Statutes, Section 78.195, of the corporation laws of the state of Nevada, the undersigned corporation hereby
adopts the following Designation of Rights, Privileges, and Preferences of 1998 Series A Preferred Stock (the "Designation"):

FIRST:The name of the Corporation is LarsonDavis Incorporated.

SECOND:The following resolution establishing a series of preferred stock designated as the "1998 Series A Preferred
Stock" consisting of 3,500 shares, par value $0.001, was duly adopted by the board of directors of the Corporation on February 2, 1998, in accordance with the articles of incorporation of the
Corporation and the corporation laws of the state of Nevada:



10.Liquidation.



11.Voting Rights.The 1998 Series A Preferred Stock shall be voted with the Common Stock as a single
class and shall not be entitled to vote as a separate class, except to the extent that the consent of the holders of the 1998 Series A Preferred Stock, voting as a class, is specifically
required by the provisions of the corporation laws of the state of Nevada, as now existing or as hereafter amended. Each holder of 1998 Series A Preferred Stock shall be entitled to Two Hundred
Seventy-Eight (278) votes for each share of such stock held by him or her.

12.Dividends.



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13.Conversion.



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14.Registration Rights.The Corporation shall, on or before April 1, 1998, file a registration
statement with the Securities and Exchange Commission registering the resale of the Common Stock issuable or issued on conversion of the 1998 Series A Preferred Stock (the "Conversion Stock")
(but not the 1998 Series A Preferred Stock itself) and shall thereafter diligently use its commercially reasonable best efforts to seek the effectiveness of such registration statement and to
keep such registration statement effective for a period of two years. The holder shall furnish to the Corporation in writing such information, and enter into such agreements as the Corporation
may reasonably request from such holder, all as may be required in connection with the registration described in this Section 5 or in compliance with applicable state securities laws. All
expenses of such registration, other than commissions or fees paid on the resale of the Common Stock by the holder, shall be paid by the Corporation. If such registration statement is not declared
effective by the Securities and Exchange Commission on or before May 30, 1998, the annual dividend rate shall be increased to Eighty Dollars ($80.00) per share until the registration statement
is declared effective. If the registration statement has not been declared effective on or before August 31, 1998, the annual dividend rate shall be One Hundred and Twenty Dollars ($120.00) per
share until the registration statement is declared effective.

15.Mandatory Conversion.If not earlier converted, the 1998 Series A Preferred Stock shall be
automatically converted effective December 31, 1999. In the event the Corporation proposes to offer its Common Stock to the public in a registered offering at any time subsequent to
February 1, 1999, it can require the conversion of the 1998 Series A Preferred Stock, at the conversion rate set forth in Section 4, by providing thirty (30) days prior
written notice to the holders. Such conversion shall be deemed to have occurred as of the last day of the thirty (30) day notice period.

16.Antidilution Provisions.The maximum conversion price limit of Three Dollars and Sixty Cents ($3.60) per
share of Common Stock (the "Cap Rate") shall be subject to adjustment from time to time as follows:



17.Reservation of Common Stock.The Corporation shall initially reserve 2,332,984 shares of Common Stock for
issuance on conversion the 1998 Series A Preferred Stock. The Corporation shall at

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all times keep a sufficient number of shares of Common Stock reserved to permit the conversion of any 1998 Series A Preferred Stock then outstanding. The number of shares shall be equitably
adjusted if the Corporation issues Common Stock as a dividend upon Common Stock or in lieu of the payment of a dividend thereon, shall subdivide the number of outstanding shares of its Common Stock
into a greater number of shares or shall contract the number of outstanding shares of its Common Stock into a lesser number of shares.

18.Events of Default.An "event of default" shall exist if any of the following shall occur:



If
an event of default shall occur, any Holder of shares of the 1998 Series A Preferred Stock may, in addition to such holder's other remedies, by written notice to the
Corporation, require the Corporation forthwith to redeem the shares of Series A Preferred Stock held, at a redemption price equal to One Thousand Dollars ($1,000.00) per share plus all accrued
but unpaid dividends. The obligation to pay the redemption price shall accrue interest, payable on demand, at eighteen percent (18%) per annum, or, if less, at the highest rate permitted by law.

19.Additional Provisions.



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IN
WITNESS WHEREOF, the foregoing Designation of Rights, Privileges, and Preferences of 1998 Series A Preferred Stock of the Corporation has been executed this    day
of February, 1998.

|ATTEST: |                        | LARSONDAVIS INCORPORATED
|------- | ---------------------- | -------------------------
|By      | /s/CRAIG ALLEN         |                          
|        | Craig Allen, Secretary |                          

|STATE OF UTAH       |  | )   
|------------------- |  | ----
|                    |  | :ss.
|COUNTY OF SALT LAKE |  | )   

On
February 2, 1998, before me, the undersigned, a notary public in and for the above county and state, personally appeared Andrew Bebbington and Craig Allen, who being by me duly
sworn, did state, each for themselves, that he, Andrew Bebbington is the president, and that he, Craig Allen is the secretary, of LarsonDavis Incorporated, a Nevada corporation, and that
the foregoing Designation of Rights, Privileges, and Preferences of 1998 Series A Preferred Stock of LarsonDavis Incorporated was signed on behalf of such corporation by authority
of a resolution of its board of directors, and that the statements contained therein are true.

| | WITNESS MY HAND AND OFFICIAL SEAL.
| | ----------------------------------
| | /s/PAULA CHAPMANNotary Public     

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CERTIFICATE OF AMENDMENT TO
THE ARTICLES OF INCORPORATION OF
LARSONDAVIS INCORPORATED
(CHANGED HEREIN TO SENSAR CORPORATION)

The
following Certificate of Amendment to the articles of incorporation of the above-named corporation is adopted pursuant to the provisions of NRS 78.385 and 78.390. We, the
undersigned, as president and secretary of LarsonDavis Incorporated (changed herein to Sensar Corporation) (the "Company"), do hereby certify:



ARTICLE
1 shall be amended to read as follows:

ARTICLE 1
NAME OF CORPORATION

The name of the Corporation shall be:

Sensar
Corporation

On
the authorization and recommendation of the board of directors, the foregoing resolution was submitted to a vote at a special meeting of the shareholders of the Company duly noticed and held
March 18, 1999. The aggregate voting power of the shares of common stock of the Company and the shares of 1998 Series A Preferred Stock of the Company, which vote as a single class
outstanding on the record date and entitled to vote on the foregoing resolution was 13,929,034; the resolution to amend the articles of incorporation of the Company as set forth above, were approved
in accordance with NRS 78.325 of 7,815,577.5 votes for, 77,666 votes against, and 454,950 votes abstaining. No other class of stock of the Company is outstanding or entitled to vote thereon.

DATED
this 31st day of March, 1999.

| |  | LARSONDAVIS INCORPORATED
| |  | -------------------------
| |  | By                       
| |  | By                       

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|STATE OF UTAH       |  | )   
|------------------- |  | ----
|                    |  | :ss.
|COUNTY OF SALT LAKE |  | )   

On
March 31, 1999, before me, the undersigned, a notary public in and for the above county and state, personally appeared Andrew C. Bebbington and Nathan H. West, who being by me
duly sworn, did state, each for themselves, that he, Andrew C. Bebbington is the president, and that he, Nathan H. West is the secretary, of LarsonDavis Incorporated, a Nevada
corporation, and that the foregoing Certificate of Amendment to the Articles of Incorporation of LarsonDavis Incorporated (changed herein to Sensar Corporation) was signed on behalf of
such corporation by authority of a resolution of its board of directors, and that the statements contained therein are true.

| | WITNESS MY HAND AND OFFICIAL SEAL.
| | ----------------------------------
| | /s/PAULA CHAPMANNotary Public     

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STATE OF NEVADA
CERTIFICATE OF AMENDMENT
OF THE ARTICLES OF INCORPORATION
OF
SENSAR CORPORATION
(NAME CHANGE TO VITALSTREAM HOLDINGS, INC.)

Sensar Corporation, a corporation organized and existing under the laws of the state of Nevada, does hereby certify:

FIRST:That, at a meeting of the Board of Directors, resolutions were duly adopted setting forth an amendment of the Articles
of Incorporation of said corporation, declaring said amendment to be advisable and directing that said amendment be considered at an annual or special meeting of shareholders or by written consent.
The amendment (the "Amendment") is as follows:



ARTICLE I
NAME

The
name of the Corporation shall be:

VitalStream
Holdings, Inc."

SECOND:That, thereafter, the Company circulated to shareholders a written consent of shareholders approving the Amendment
(the "Consent"). The number of shares of common stock eligible to vote on the Amendment was 22,232,999. Of such eligible shares, 11,863,462 signed the Consent approving the Amendment, which number is
sufficient for approval and adoption of the Amendment.

THIRD:That the Amendment was duly adopted in accordance with the provisions of Section 78.390 of the laws of the
state of Nevada.

FOURTH:That the rights and performances of the capital stock of said corporation shall not be altered by reason of the
amendment.

FIFTH:That the Amendment shall be effective at 8:00 a.m., Nevada time, on July 26, 2002.

IN WITNESS WHEREOF, Sensar Corporation (to be known as VitalStream Holdings, Inc.), has caused this certificate to be signed by
Paul S. Summers, President, this 15th day of July, 2002.

| |  | By: | /s/PAUL SUMMERSPaul S. Summers
President and Chief Executive Officer
| |  | --- | --------------------------------------------------------------------
| |  |     |                                                                     

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