REDbot is lint for HTTP resources; it tests protocol correctness, cacheability, content negotiation and more. REDbot checks HTTP resources to see how they'll behave, pointing out common problems and suggesting improvements. Although it is not a HTTP conformance tester, it can find a number of HTTP-related issues.
Service Worker Precache is a module for generating a service worker that precaches resources. The module can be used in JavaScript-based build scripts, like those written with gulp, and it also provides a command-line interface. You can use the module directly, or if you'd prefer, use of the wrappers around sw-precache for specific build environments, like webpack.
It can be used alongside the sw-toolbox library, which works well when following the App Shell + dynamic content model.
Give your teams a single source of truth for every component they use.
Optimize build performance and reliability by caching proxies of remote repositories.
Provide universal coverage for all major package formats and types.
Install on an unlimited amount of servers for an unlimited amount of users.
Supports Docker, npm, bower, NuGet