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The best problem-solving writing in software engineering — databases, performance, security, frontend and distributed systems, in one feed.

11,844 articles
Security — Protecting user data through source code analysis at scale

Protecting user data through source code analysis at scale

Meta’s Anti Scraping team focuses on preventing unauthorized scraping as part of our ongoing work to combat data misuse. In order to protect Meta’s changing codebase from scraping attacks, we have introduced static analysis tools into our workflow. These tools allow us to detect potential scraping vectors at scale across our Facebook, Instagram, and even […]

CWChris Wiltz·February 18, 2025Security
Systems — Searching for the cause of hung tasks in the Linux kernel

Searching for the cause of hung tasks in the Linux kernel

The Linux kernel can produce a hung task warning. Searching the Internet and the kernel docs, you can find a brief explanation that the process is stuck in the uninterruptible state. That explains the warning’s meaning, but doesn’t provide the reason it occurred. In this blog post we’re going to explore how the warning works.

OJOxana, Jesper BrouerOxana, Jesper Brouer·February 14, 2025Systems
Frontend — Handwriting an SVG Heart, With Our Hearts

Handwriting an SVG Heart, With Our Hearts

A while back on CSS-Tricks, we shared several ways to draw hearts, and the response was dreamy. Now, to show my love, I wanted to do something personal, something crafty, something with a mild amount of effort.

RTRyan TrimbleRyan Trimble·February 14, 2025Frontend
Engineering — Support the open source projects you love this Valentine’s Day

Support the open source projects you love this Valentine’s Day

Show your appreciation to the open source projects you love. You can help provide much-needed support to the critical but often underfunded projects that keep your infrastructure running smoothly. And remember—every day is a perfect day to support open source! 💖

MWMartin WoodwardMartin Woodward·February 14, 2025Engineering
Networking — Unlocking global AI potential with next-generation subsea infrastructure

Unlocking global AI potential with next-generation subsea infrastructure

Today, we’re announcing our most ambitious subsea cable endeavor yet: Project Waterworth. Once complete, the project will reach five major continents and span over 50,000 km (longer than the Earth’s circumference), making it the world’s longest subsea cable project using the highest-capacity technology available. Project Waterworth will bring industry-leading connectivity to the U.S., India, Brazi

CWChris Wiltz·February 14, 2025Networking
Frontend — Scroll Driven Animations Notebook

Scroll Driven Animations Notebook

Adam's such a mad scientist with CSS. He's been putting together a series of "notebooks" that make it easy for him to demo code. He's got one for gradient

GGGeoff GrahamGeoff Graham·February 13, 2025Frontend
Security — Looking back at our Bug Bounty program in 2024

Looking back at our Bug Bounty program in 2024

In 2024, our bug bounty program awarded more than $2.3 million in bounties, bringing our total bounties since the creation of our program in 2011 to over $20 million. As part of our defense-in-depth strategy, we continued to collaborate with the security research community in the areas of GenAI, AR/VR, ads tools, and more. We […]

CWChris Wiltz·February 13, 2025Security
Design & UX — How To Test And Measure Content In UX — Smashing Magazine

How To Test And Measure Content In UX — Smashing Magazine

The goal of content design is to reduce confusion and improve clarity. Yet often it’s difficult to pinpoint a problem as user feedback tends to be not specific enough. But: we can use a few simple techniques to assess how users understand and perceive content. Let’s take a look. Part of [How To Measure UX & Design Impact](https://measure-ux.com/) by yours truly.

VFVitaly FriedmanVitaly Friedman·February 13, 2025Design & UX
Performance — Time To First Byte: Beyond Server Response Time — Smashing Magazine

Time To First Byte: Beyond Server Response Time — Smashing Magazine

Optimizing web performance means looking beyond surface-level metrics. Time to First Byte (TTFB) is crucial, but improving it requires more than tweaking server response time. Matt Zeunert breaks down what TTFB is, what causes its poor score, and why reducing server response time alone isn’t enough for optimization and often won’t be the most impactful change you can make to your website.

MZMatt ZeunertMatt Zeunert·February 12, 2025Performance
Databases — AI enhancements to Adaptive Acceptance

AI enhancements to Adaptive Acceptance

Stripe’s AI-powered Adaptive Acceptance increases payment acceptance by recovering false declines. Recent AI upgrades improved transaction retry accuracy, leading to a record $6 billion recovered in 2024—a 60% year-over-year increase.

MCMing ChenMing Chen·February 12, 2025Databases