TechTarget (TTGT) 10-K 2017 FY Annual report

Exhibit 32.1

CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER AND

PRINCIPAL FINANCIAL OFFICER PURSUANT TO

18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

Each of Michael Cotoia and Daniel Noreck hereby certifies, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, in his/her capacity as Chief Executive Officer and Chief Financial Officer and Treasurer, respectively of TechTarget, Inc. (the Company), that, to his knowledge, the Annual Report of the Company on Form 10-K for the period ended December 31, 2017 as filed with the Securities and Exchange Commission (the Report) fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934 and that the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Date: March 12, 2018	By:	/s/ Michael Cotoia
		Michael Cotoia
		Chief Executive Officer
Date: March 12, 2018	By:	/s/ Daniel Noreck
		Daniel Noreck
		Chief Financial Officer and Treasurer