LinkedIn is the world's largest professional social network, with more than 500 million users in more than 200 countries and territories worldwide. They have an expansive IT architecture comprised of many first- and third-party components to serve their massive global user base. OBJECTIVES LinkedIn services users in every corner of the globe, which requires a wide array of third-party vendors, including three DNS resolution services and five content delivery networks (CDNs), plus their own internal CDN. But with so much reliance on third-party solutions for their digital delivery, the LinkedIn SRE team has to keep a close eye on the performance of these cloud solutions in order to ensure that their end users are getting the best digital experience possible. This can be especially chal

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