EX-32.1 8 a2121595zex-32_1.htm EXHIBIT 32.1
QuickLinks -- Click here to rapidly navigate through this document

Exhibit 32.1


CERTIFICATION PURSUANT TO
18 U.S.C. SECTION 1350,
AS ADOPTED PURSUANT TO
SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

        I, Barry Diller, Chairman and Chief Executive Officer of InterActiveCorp (the "Company"), certify, pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, 18 U.S.C. Section 1350, that, to my knowledge:

    (1)
    the Annual Report on Form 10-K/A of the Company for the annual period ended December 31, 2002 (the "Report") which this statement accompanies fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934 (15 U.S.C. 78m or 78o(d)); and

    (2)
    the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Dated: February 10, 2004

    /s/  BARRY DILLER      
Barry Diller
Chairman and Chief Executive Officer

A signed original of this written statement required by Section 906 has been provided to InterActiveCorp and will be retained by InterActiveCorp and furnished to the Securities and Exchange Commission or its staff upon request.




QuickLinks

CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002