This indicates an attempt to use the Akamai Client.
Akamai Client (NetSession Interface) is a client-side networking library for enhancing download speeds of files and video streams from websites that support Akamai technology. Akamai Technologies, Inc. is a content delivery network (CDN) and cloud services provider headquartered in the United States. Akamai's content delivery network is one of the world's largest distributed computing platforms, responsible for serving between 15 and 30 percent of all web traffic. The company operates a network of servers around the world and rents capacity on these servers to customers who want their websites to work faster by distributing content from locations close to the user.