EXHIBIT 23.1 INDEPENDENT AUDITORS' CONSENT The Board of Directors and Stockholders of InfoSpace.com, Inc. Redmond, Washington We consent to the incorporation by reference in this Registration Statement of InfoSpace.com, Inc. on Form S-3 of our report dated February 24, 1999 (December 15, 1999 as to Note 14) appearing in the Prospectus, which is part of this Registration Statement No. 333-93167 of InfoSpace.com, Inc. on Form S-3 and to the reference to us under the heading "Experts" in such Prospectus. /s/ Deloitte & Touche LLP Seattle, Washington January 7, 2000