Exhibit 21.1 SUBSIDIARIES OF THE REGISTRANT AKAMAI Ltd. -- Incorporated in the United Kingdom AKAMAI GMBH -- Incorporated in Germany AKAMAI SARL -- Incorporated in France AKAMAI TECHNOLOGIES NETHERLANDS BV - Incorporated in the Netherlands AKAMAI INTERNATIONAL BV - Incorporated in the Netherlands AKAMAI SECURITIES TRUST -- Registered in Massachusetts K STREAMING LLC - Organized in Delaware AKAMAI SALES LLC - Organized in Delaware AKAMAI JAPAN - Incorporated in Japan KAHUA HK LIMITED -- Organized in Hong Kong