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Continuous integration is the ultimate resource for developers of all backgrounds to learn, create, and solve on the web. It's meant to not only educate developers, but help them apply what they've learned to any site they work on, be it personal or business.

Found a bug? 👷‍♀️

Thanks for letting us know! Please file an issue and a team member should reply shortly.

Authoring content ✍️

Before you start writing take a moment to look over the handbook and familiarize yourself with the process. When you're ready, follow the steps in the Quickstart to create your content proposal.

Building the site 🏗

You'll need a recent version of Node: v14 (LTS) or higher. To check your node version run node -v in your terminal.

If you don't have node, or if you need to upgrade, we recommend using the Node Version Manager (nvm).

Clone the repo

git clone

Install dependencies

npm ci

Start a local server to preview the site

npm run dev

Open http://localhost:8080/ to see the site locally. Changes to assets will rebuild the site. Refresh to see your changes.

Set up build flags

Building the entire site can take a while because it's around one thousand pages. If you want to massively speed up your build times, we suggest setting some build flags to ignore certain sections.

  • Create a .env file at the root of your project
  • Add the following:
# Ignore ALL site content

# Only build the directories you're working on.
# Note, this is a JSON string so you must use double quotes.
ELEVENTY_INCLUDE=["blog", "vitals"]

Environments 🌳

Set ELEVENTY_ENV=prod to force production builds. This is the default when running "stage" or "deploy". No other options for ELEVENTY_ENV are supported, although our Eleventy site config will default to 'dev' if unspecified.

Staging 🕺

When you send in a pull request it will be automatically staged for you. Keep an eye out for the netlify bot to comment on the pull request with your unique URL.

Deploying the site 🚀

Automatic deploys

The site will build and deploy the main branch automatically every hour, Mon-Fri. If you've just merged an article then it should go live at the top of the next hour.

Manual deploys

To manually deploy the site you'll need to be a member of one of these GitHub teams:

  • @GoogleChrome/web-dev-admins
  • @GoogleChrome/web-dev-content
  • @GoogleChrome/web-dev-contributors
  • @GoogleChrome/web-dev-eng
  • @GoogleChrome/web-devrel
  1. Navigate to the Deploy workflow in the Actions panel.
  2. Click the Run workflow button. Make sure the branch says main, then click the green Run workflow button.

An expanded workflow popup with a green run workflow button inside of it.

Debugging 🐛

If you need to debug the site's build process:

  1. Add a debugger statement to .eleventy.js
  2. Run npm run debug:eleventy
  3. Go to about://inspect to attach to the running process.

The Chrome inspect page showing the inspect button