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Optimize Toolset

I’ve always been into building performant and accessible sites, but lately I’ve been taking it extremely seriously. So much so that I’ve been building a tool to help me optimize and monitor the sites that I build to make sure that I’m making an attempt to offer the best experience to those who visit them. If you’re into performant, accessible and SEO friendly sites, you might like it too! You can check it out at Optimize Toolset.


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As I was building it, I realized that I was actually using the tool to build the tool, and figured I might as well put this out there and hopefully others will find it to be a fast and useful way to search and browse npm packages as I have.

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Guardian advertising business logic





npm (scoped) ES version npm type definitions

Guardian advertising business logic

Table of contents


Generic badge

yarn add @guardian/commercial-core


This package uses ES2020.

If your target environment does not support that, make sure you transpile this package when bundling your application.



  1. Node 16 (fnm recommended)
  2. Yarn


Changes are automatically released to NPM.

The main branch on GitHub is analysed by semantic-release after every push.

If a commit message follows the conventional commit format, semantic-release can determine what types of changes are included in that commit.

If necessary, it will then automatically release a new, semver-compliant version of the package to NPM.

Pull requests

Try to write PR titles in the conventional commit format, and squash and merge when merging. That way your PR will trigger a release when you merge it (if necessary).