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Blogs by Mehdi Daoudi
  • network-monitoring-strategy
    Debugging CDNs: A Need for Change Posted on February 27th, 2017 by Mehdi Daoudi

    It’s a Saturday afternoon: An email from a customer drove me to start troubleshooting an issue they were experiencing with Amazon S3. They were experiencing random high wait time, usually an indication of a problem with communication back to some sort of an origin system. Should’ve been a piece of cake, right? Well, it wasn’t. […]

  • shutterstock_566394541
    The Slow Death of Retail as We Know It Posted on January 30th, 2017 by Mehdi Daoudi

    Last Saturday, our washer and dryer decided to call it quits after 14 years of amazing service. As you can imagine, this is a major crisis for family with children. P0 priority! All hands on deck! Therefore, Sunday at 7 AM, we were in front of our local Home Depot in a hurry to replace the […]

  • shutterstock_548931199
    Delivering Strong User Experiences in This Increasingly Digital World Posted on January 5th, 2017 by Mehdi Daoudi

    This article was originally published as a byline for CMS Wire. Given the increasing reliance on digital systems to accomplish many everyday tasks, there’s no denying the performance — specifically, speed, and reliability — of these systems is critical to ensuring end users will have a positive experience. At the forefront are industry giants like […]

  • amazon-third-party-service
    My Firsthand Account of a Third Party Problem Posted on December 14th, 2016 by Mehdi Daoudi

    In the digital world, performance, availability, and reliability are key pillars of business that can impact revenue, reputation, and operational excellence. We often write about the impact that third-party services have on performance on our blog, but sometimes that impact is felt in our personal lives as well. Every year, we monitor major retailers’ performance and […]

  • dyn-ddos-outage
    DNS Outage Was Doomsday for the Internet Posted on October 23rd, 2016 by Mehdi Daoudi

    What was supposed to be a quiet Friday suddenly turned into a real “Black Friday” for us (as well as most of the Internet) when Dyn suffered a major DDOS attack. From an internet disruption’s perspective, the widespread damage the outage caused made it the worst I have ever experienced. At the core of it all, […]

  • http
    Revisiting the Anatomy of HTTP: Pt II Posted on September 15th, 2016 by Mehdi Daoudi

    In Part I, we discussed the various components of HTTP request. In particular, we walked the reader through the details of TLS (Transport Layer Security), its impact on performance and how to mitigate it. Besides security, mobile performance has assumed the center stage owing to increasing use of mobile devices (as highlighted by June 2016 […]

  • https
    Revisiting the Anatomy of HTTP: Pt I Posted on August 19th, 2016 by Mehdi Daoudi

    One of the key driving factors behind the various web/mobile performance initiatives is the fact that end-users’ tolerance for latency has nose-dived. Several studies have been published whereby it has been demonstrated that poor performance routinely impacts the bottom line, viz,. # users, # transactions, etc. Examples studies include this, this and this. There are […]

  • A Practical Guide to SLAs Posted on August 4th, 2016 by Mehdi Daoudi

    While visiting a customer last week (a large SaaS platform company), we started to have an interesting discussion around Service Level Agreements (SLAs) during which he encouraged me to write this blog. When I was tasked with setting up the QoS Team at DoubleClick in 1999, the primary mission was to setup a monitoring team (internal, external, etc.) and the secondary […]

  • Cog
    DNS Experience Tests: A Key Cog in the Online Ecosystem Posted on August 3rd, 2016 by Mehdi Daoudi

    A company’s collection of online systems is like a delicate ecosystem – all components must integrate with and complement each other, and one single malfunction in any of them can bring the entire system to a screeching halt. That’s why, when monitoring and analyzing the health of your online systems, you need a broad arsenal […]

  • hackaton
    Our First Hackathon Projects Have Graduated to Production! Posted on August 1st, 2016 by Mehdi Daoudi

    In early 2016, we decided to launch our first Hackathon, reIMAGINE. The rules of the event were simple: Assemble a team Rally around an idea Build a prototype of a solution that can benefit our customers (internal or external) It must solve a business problem The teams had three days to pick members from all departments (engineering, ops, customer […]

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