Web Performance is a Journey, Not a Destination

Mehdi Daoudi

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Top Stories by Mehdi Daoudi

My Firsthand Account of a Third-Party Problem 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 availability during Black Friday and Cyber Monday, testing to capture the inevitable failures and outages as traffic volumes climb to record highs. This year, however, most of these retailers did amazingly well and I am very happy for them. The few glitches that did occur were, yet again, due to some third-party element, whether it be a tracking beacon, a picture enhancement service, a social tag, etc. Most of these retailers have been prepa... (more)

WebPerf 101: #JavaScript | @CloudExpo #Catchpoint #DevOps #CD #WebPerf

Web Performance 101: Optimizing JavaScript By Kameerath Kareem JavaScript redefined web applications ushering in a new era of dynamic websites with fluid responsive designs. It has gained a strong following among developers, popular libraries and frameworks like JQuery and Angular JS are all built with JavaScript. The endless design possibilities that JavaScript provides coupled with the numerous libraries available today makes it an indispensable part of web application development. Why JavaScript? Today, almost every website uses JavaScript to provide an interactive digital exp... (more)

DNS Experience Tests | @CloudExpo @CatchPoint #APM #DevOps

DNS Experience Tests: A Key Cog in the Online Ecosystem 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 of different tools for your different needs. In addition to a wide-angle lens that provides a snapshot of the overall health of your system, you must also have precise, scalpel-like tools ... (more)

Performance Metrics 101: Page Size | @DevOpsSummit #APM #DevOps #WebPerf

Performance Metrics 101: Page Size (Total Downloaded Bytes) By Kameerath Kareem This blog will be a series of posts that will discuss some of the most important performance metrics. We will analyze real-time data and compare the top performing websites with those at the lower end of the spectrum. Best practices will be discussed in detail to help those who want to build websites that are optimized, without having to compromise on the design or content. Website development has come a long way – from a few simple lines of static HTML and drab layouts to dynamic pages with fluid and... (more)

A Practical Guide to SLAs | @CloudExpo #APM #SaaS #Cloud #DevOps

A Practical Guide to SLAs 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 mission was actually an accidental one: to manage our SLAs. This became a hot priority in 2001, we paid out over $1 million (in real money) in penalties for SLA violations to ... (more)