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CSS and Network Performance

CSS Wizardry

CSS is critical to rendering a page—a browser will not begin rendering until all CSS has been found, downloaded, and parsed—so it is imperative that we get it onto a user’s device as fast as we possibly can. download any CSS needed for the current context (medium, screen size, resolution, orientation, etc.) Employ Critical CSS.

Network 279
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Monitor web applications from within your corporate network

Dynatrace

We continue to grow our public synthetic monitoring locations, but customers using Dynatrace Synthetic still need to monitor the performance and availability of internal web applications. With private synthetic browser monitors, we bring the testing capabilities available in public locations right into your own environment.

Network 203
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The Three Cs: Concatenate, Compress, Cache

CSS Wizardry

Compressing them over the network: Which compression algorithm, if any, will we use? What is the availability, configurability, and efficacy of each? ?️ This gave rise to heavy bundling and concatenation—why download three CSS files (half of our budget) if we could compress them into one? main.af8a22.css

Cache 353
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Netflix Android and iOS Studio Apps?—?now powered by Kotlin Multiplatform

The Netflix TechBlog

The high likelihood of unreliable network connectivity led us to lean into mobile solutions for robust client side persistence and offline support. This translates to a large number of app configurations to toggle feature availability and optimize the in-app experience for each production. Networking Hendrix interprets rule set(s)?—?remotely

Mobile 279
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PyMongo Tutorial: Testing MongoDB Failover in Your Python App

Scalegrid

When deploying in production, it’s highly recommended to setup in a MongoDB replica set configuration so your data is geographically distributed for high availability. 1305:12 @(shell):1:1 2019-04-18T19:44:42.261+0530 I NETWORK [thread1] trying reconnect to SG-example-1.servers.mongodirector.com:27017

Testing 55
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Why Not document.write()?

CSS Wizardry

slow: Synchronous JS can block DOM construction while the file is downloading. Synchronous JS never blocks downloads of subsequent files. The reason scripts never block subsequent downloads is because of something called the Preload Scanner. There are a number of things that can make regular, synchronous scripts 1.

Google 308
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How Dynatrace protects its software development and delivery life cycle against supply chain attacks

Dynatrace

Access to source code repositories is limited on both the network and the user level. Source code management systems are only accessible from within the Dynatrace corporate network. Remote access to the Dynatrace corporate network requires multi-factor authentication (MFA). No manual, error-prone steps are involved.

Software 289