Cloudflare Page Shield vs. JavaScript vs. PostCSS vs. Refraction Comparison Chart

Backed by our world-class threat intelligence and machine learning capabilities, Page Shield helps defend against client-side attacks that target vulnerable JavaScript dependencies. Detect and mitigate browser supply chain attacks with machine learning-based protection. Get instant notifications when new scripts are detected, marked as malicious, or loaded from unknown domains. Reduce third-party vendor risk and address client-side requirements like GDPR, PCI, and more. Page Shield simplifies third-party script management by tracking loading resources (like scripts) for potentially malicious additions, connections, or changes. Powered by our threat intelligence and machine learning-based detection, it instantly identifies, reports, and blocks threats, before they reach your website. Block browser-based attacks aimed at your users’ personal and financial information. Monitor JavaScript dependencies and block threats with threat intelligence and machine learning.

PostCSS is a versatile tool that transforms CSS using JavaScript plugins, enabling a wide range of functionalities such as linting, supporting variables and mixins, transpiling future CSS syntax, and inlining images. It serves as a framework for developing CSS tools and can be utilized to create template languages similar to Sass and LESS. The core of PostCSS comprises a CSS parser that generates an abstract syntax tree, a set of classes that form the tree, a CSS generator that produces a CSS line for the object tree, and a code map generator for CSS changes. Plugins operate on the object tree, analyzing and modifying it before PostCSS generates a new CSS string reflecting these changes. Notable plugins include Autoprefixer, which adds vendor prefixes, and Stylelint, a modern CSS linter that enforces consistent conventions and avoids errors in stylesheets. PostCSS is employed by industry leaders such as Wikipedia, Twitter, Alibaba, and JetBrains.