## npm

npm is the public package registry for JavaScript and Node.js. Publishing a legitimate public package can create a public npm package page where your README, homepage, repository, and package metadata may point to an external project, documentation site, or company page.

- URL: https://www.npmjs.com/
- Guide: https://backlinkbadger.com/provider/npm/
- Link type: nofollow
- Free option: yes
- Backlink value: 8/100
- Spam score: 2/100
- Difficulty: 60/100
- Estimated time: 45 minutes
- Requirements: Email, npm account, Node.js and npm CLI, Publishable JavaScript package or module

npm works as a backlink source when the package itself is useful and the external link is part of normal package documentation or metadata. Common link locations include the package `README.md`, the `homepage` field, the `repository` field, and project documentation links shown on the public npm package page.

1. Create or sign in to an [npm account](https://docs.npmjs.com/creating-a-new-npm-user-account/).
2. Prepare a genuine Node.js package, CLI, SDK, template, plugin, or other JavaScript module that deserves a public registry listing.
3. Add a relevant backlink in your `README.md`, such as a documentation, demo, sponsor, author, or project homepage link.
4. Add appropriate package metadata in `package.json`, especially `homepage`, `repository`, and `bugs` when those pages exist.

[Image: npm package.json documentation showing the homepage field used for a project URL]

5. Follow npm's guide to [create and publish an unscoped public package](https://docs.npmjs.com/creating-and-publishing-unscoped-public-packages/), then run `npm publish`.
6. Visit the public package page at `https://www.npmjs.com/package/<package-name>` and confirm the README or metadata link appears.

Example: the [React package page](https://www.npmjs.com/package/react) exposes project metadata such as its homepage and repository, demonstrating the type of external references npm package pages can show.

Keep the package useful and maintained. npm is a software distribution registry first; backlink value is a by-product of publishing a legitimate package, not the reason to publish one.