Azion Content Delivery vs esm.sh

Azion Content Delivery accelerates content using distributed infrastructure, caching and serverless functions, with stated delivery latency below 30 ms. It includes image optimization, Origin Shield, a web application firewall and DDoS protection. Caching controls cover browser and edge expiration, large files, cookie or query-string behavior, tiered cache and real-time purge; connectors can link applications to HTTP origins or Object Storage. Azion says its infrastructure can provide up to 10× higher performance than traditional solutions and reduce cloud costs by up to 80%, which are stated potential outcomes. The Hobby plan costs nothing and includes global infrastructure, functions, storage, databases, image optimization and DDoS protection, subject to usage and resource limits. Pro costs $25 a month, billed monthly, and can be cancelled anytime. Enterprise pricing is custom. Annual billing requires a 12-month commitment and full upfront payment. All plans include Developer Support; paid tiers offer additional support options.

esm.sh is an open-source service for importing JavaScript modules through HTTP URLs, so developers can use packages in browser apps or Deno without build tools. It serves packages from npm, JSR, GitHub and pkg.pr.new, and can transform TypeScript, TSX, Vue and Svelte files for direct imports. Modules are bundled by default; URL options let developers alter bundling, request raw content, set dependency versions or aliases, and select exports. Export selection does not work with CommonJS modules. The service supports CSS imports when a package imports CSS directly from JavaScript, and it can load modules as web workers. Build targets include es2015 through es2024, esnext, Deno, denonext and Node. A lightweight TSX script can compile and cache TSX written directly in HTML. The FAQ describes compatibility with modern browsers that support ES6 modules, including Deno. The public CDN does not support private npm packages; the project directs those users to self-hosting and provides a Docker image and deployment instructions. The project is MIT-licensed, with bug reports directed to GitHub issues.