Developer rebuilds Doom using only CSS and HTML, turning divs into a full 3D game engine

Leenheer is best known for creating HTML5test.com, the WhichBrowser user-agent parser. He began exploring a CSS-based Doom ...
Analytics Insight

The 8 Best Imgix Alternatives for Better PageSpeed and Core Web Vitals (Benchmarked with Case Studies)

Images are the Largest Contentful Paint element on 85% of desktop pages and 76% of mobile pages, according to the 2025 HTTP ...
SecurityWeek

Critical Vulnerability in Claude Code Emerges Days After Source Leak

Within days of each other, Anthropic first leaked the source code to Claude Code, and then a critical vulnerability was found ...

Anthropic says no sensitive data exposed in leak of code behind Claude AI agent

Anthropic said no sensitive customer data were exposed after accidentally revealing the underlying instructions it uses to ...