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What is Log4Shell? The Log4Shell vulnerability explained (and what to do about it)

Dynatrace

The vulnerability, published as CVE-2021-44228 , enables a remote attacker to take control of a device on the internet, if the device is running certain versions of Log4j 2. Apache issued a patch for CVE-2021-44228, version 2.15, on December 6. What is Log4j 2, and what does it do?

Internet 260
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Core Web Vitals for Search Engine Optimisation: What Do We Need to Know?

CSS Wizardry

Google’s Core Web Vitals initiative was launched in May of 2020 and, since then, its role in Search has morphed and evolved as roll-outs have been made and feedback has been received. However, to this day, messaging from Google can seem somewhat unclear and, in places, even contradictory. Don’t have time to read 5,500+ words?

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Software Testing Trends 2021 – What can we expect?

Testsigma

In the quality assurance and software testing domain, there are several trends that will be following in 2021. You will track the developments for 2021 here at Testsigma and use Testsigma mobile automation tool for making testing easy and hassle-free. Here is the list of software testing trends you need to look out for in 2021.

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Average Page Load Time in 2021

MachMetrics

In this article, we will particularly look at the average page load time in 2021 and importance of web vitals. With the latest introduction of the Core Web Vital section on GSC + upcoming Google’s core web vital update, site owners are forced to take note of their website speed and web vitals. Daniel An, Google, 2017.

Cache 78
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SKP's Java/Java EE Gotchas: Clash of the Titans, C++ vs. Java!

DZone

One, by researching on the Internet; Two, by developing small programs and benchmarking. There were languages I briefly read about, including other performance comparisons on the internet. Though I have spent the last ~17 years (In 2021) of my life coding and perfecting my Java and J2EE skill — I suddenly feel. Ahem, Slow!

Java 207
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Front-End Performance Checklist 2021

Smashing Magazine

Front-End Performance Checklist 2021. Front-End Performance Checklist 2021. 2021-01-11T15:30:13+00:00. 2021-01-11T16:06:07+00:00. Assets Optimizations Brotli, AVIF, WebP, responsive images, AV1, adaptive media loding, video compression, web fonts, Google fonts. Vitaly Friedman. Large preview ). Large preview ).

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USENIX LISA2021 Computing Performance: On the Horizon

Brendan Gregg

DDR6: Here's What to Expect in RAM Modules,” [link] Nov 2020 - [Salter 20] Jim Salter, “Western Digital releases new 18TB, 20TB EAMR drives,” [link] Jul 2020 - [Spier 20] Martin Spier, Brendan Gregg, et al., Nowadays I always include names when known. In case you are interested, at the same conference I also gave a talk on [BPF Internals].