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Image Inconsistencies: How and When Browsers Download Images

CSS Wizardry

This is down to the simple fact that the browser doesn’t know which (if any) images it will need until the CSSOM has been built: Waterfall showing that background images cannot be downloaded until CSSOM has completed. This is stuff we already knew: Browsers can’t possibly download background-image s until they’ve built the CSSOM.

Strategy 260
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Download our free Dynatrace branded Zoom backgrounds

Dynatrace

Make sure you hit the download link at the bottom. The post Download our free Dynatrace branded Zoom backgrounds appeared first on Dynatrace blog. Our Product. Being back in the office – situation normal. Davis is watching you. I would love to see you share your backgrounds in action!

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The Three Cs: Concatenate, Compress, Cache

CSS Wizardry

Given this limitation, it was advantageous to have fewer files: if we needed to download 18 files, that’s three separate chunks of work; if we could somehow bring that number down to six, it’s only one discrete chunk of work. 4,362ms of cumulative latency; 240ms of cumulative download. main.af8a22.css For example: vendor.js

Cache 338
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Detect VMware Aria Operations for Logs exploitation with Dynatrace and DQL

Dynatrace

These extracted fields give you the option to filter out the relevant records: However, there’s another goal to keep in mind: you need all the log records that contain the Downloading statement and URL from where the tarball was loaded and the destination path in /tmp/. download_file '.tar')):url tar')):url ' to /tmp/' (ld:filename '.pak'):saved_file

Analytics 279
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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 288
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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.) Avoid @import in CSS Files.

Network 279
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How To Connect to an EC2 Instance Using SSH

DZone

You can download the latest version. Open your terminal and change the directory with the command cd, where you downloaded your pem file. In this demonstration, the PEM file is stored in the downloads folder. How To Connect to an EC2 Instance Using SSH Using Linux 1.

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