diff --git a/.github/workflows/README.md b/.github/workflows/README.md
index e2745016..1da92512 100644
--- a/.github/workflows/README.md
+++ b/.github/workflows/README.md
@@ -42,6 +42,10 @@ Run a11ywatch GitHub action to check accessibility of the site.
 
 This action reminds users to add a meaningful alternative text to their images.
 
+## link-check.yml
+
+This action checks content links for issues using https://github.com/gjtorikian/html-proofer.
+
 # References
 
 * https://github.com/pa11y/pa11y
@@ -50,7 +54,6 @@ This action reminds users to add a meaningful alternative text to their images.
 * https://engineering.18f.gov/accessibility-scanning/
 * https://medium.com/@f3igao/how-to-automate-web-accessibility-testing-921512bdd4bf
 * https://stackoverflow.com/questions/58858429/how-to-run-a-github-actions-step-even-if-the-previous-step-fails-while-still-f
-* https://docs.gitlab.com/ee/user/project/merge_requests/accessibility_testing.html
 * https://stackoverflow.com/questions/57915432/write-output-of-npm-run-start-to-a-file
 * https://github.com/marketplace/actions/comment-pull-request
 * https://pre-commit.com/
@@ -58,4 +61,5 @@ This action reminds users to add a meaningful alternative text to their images.
 * https://stackoverflow.com/questions/62325286/run-github-actions-when-pull-requests-have-a-specific-label
 * https://github.com/marketplace/actions/push-directory-to-another-repository
 * https://github.com/marketplace/actions/find-and-replace
-* https://github.com/marketplace/actions/publish-unit-test-results
+* https://github.com/gjtorikian/html-proofer
+* https://danielsieger.com/blog/2021/03/28/check-broken-links-jekyll.html
diff --git a/.github/workflows/link-check.yml b/.github/workflows/link-check.yml
new file mode 100644
index 00000000..b33a36f1
--- /dev/null
+++ b/.github/workflows/link-check.yml
@@ -0,0 +1,28 @@
+name: Checking links
+
+on:
+  # Automatic check weekly
+  schedule:
+    - cron: "0 9 * * 1"
+  pull_request:
+
+jobs:
+  build:
+    name: Building site and running HTML proofer
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout source.
+        uses: actions/checkout@v2
+
+      - name: Install jekyll site dependencies.
+        uses: ruby/setup-ruby@v1
+        with:
+          ruby-version: 2.6
+          bundler-cache: true
+
+      - name: Build site
+        run: npm run build
+
+      - name: Run HTML proofer.
+        run: npm run link-checker
diff --git a/Gemfile b/Gemfile
index e90919d8..e0d1050a 100644
--- a/Gemfile
+++ b/Gemfile
@@ -7,3 +7,5 @@ group :jekyll_plugins do
   gem 'jekyll-redirect-from'
   gem 'jekyll-feed'
 end
+
+gem 'html-proofer'
diff --git a/Gemfile.lock b/Gemfile.lock
index a92cf70c..5d1455f5 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -8,9 +8,20 @@ GEM
     em-websocket (0.5.3)
       eventmachine (>= 0.12.9)
       http_parser.rb (~> 0)
+    ethon (0.16.0)
+      ffi (>= 1.15.0)
     eventmachine (1.2.7)
     ffi (1.15.5)
     forwardable-extended (2.6.0)
+    html-proofer (4.4.3)
+      addressable (~> 2.3)
+      mercenary (~> 0.3)
+      nokogiri (~> 1.13)
+      parallel (~> 1.10)
+      rainbow (~> 3.0)
+      typhoeus (~> 1.3)
+      yell (~> 2.0)
+      zeitwerk (~> 2.5)
     http_parser.rb (0.8.0)
     i18n (1.10.0)
       concurrent-ruby (~> 1.0)
@@ -51,10 +62,17 @@ GEM
       rb-fsevent (~> 0.10, >= 0.10.3)
       rb-inotify (~> 0.9, >= 0.9.10)
     mercenary (0.4.0)
+    mini_portile2 (2.8.5)
+    nokogiri (1.13.10)
+      mini_portile2 (~> 2.8.0)
+      racc (~> 1.4)
+    parallel (1.24.0)
     pathutil (0.16.2)
       forwardable-extended (~> 2.6)
     posix-spawn (0.3.15)
     public_suffix (4.0.7)
+    racc (1.7.3)
+    rainbow (3.1.1)
     rb-fsevent (0.11.1)
     rb-inotify (0.10.1)
       ffi (~> 1.0)
@@ -65,12 +83,17 @@ GEM
       ffi (~> 1.9)
     terminal-table (2.0.0)
       unicode-display_width (~> 1.1, >= 1.1.1)
+    typhoeus (1.4.1)
+      ethon (>= 0.9.0)
     unicode-display_width (1.8.0)
+    yell (2.2.2)
+    zeitwerk (2.6.13)
 
 PLATFORMS
   ruby
 
 DEPENDENCIES
+  html-proofer
   jekyll-feed
   jekyll-last-modified-at
   jekyll-redirect-from
diff --git a/_guide/champions-program.md b/_guide/champions-program.md
index 9824f448..4bd86676 100644
--- a/_guide/champions-program.md
+++ b/_guide/champions-program.md
@@ -173,7 +173,6 @@ Many joined CivicActions because they wanted to work for an impact-driven organi
 * [LinkedIN's Program](https://engineering.linkedin.com/blog/2019/05/scaling-accessibility-through-a11y-champions-program)    
 * Intuit (Quickbooks)
      * [The A11y Global Collective: Scaling Accessibility — Intuit's Accessibility Champions Program (YouTube)](https://www.youtube.com/watch?v=np6sIWUTPlE)
-     * [The A11y Global Collective: Scaling Accessibility — Intuit's Accessibility Champions Program Slides (PDF)](http://www.last-child.com/wp-content/uploads/2021/09/Accessibility-Champions.pdf)
      * [Intuit's Accessibility Champion Program](https://www.last-child.com/intuits-accessibility-champion-program/)
      * [Lessons Learned from an Intuit Accessibility Champion (Blog)](https://www.intuit.com/blog/innovation/lessons-learned-from-an-intuit-accessibility-champion/)
 * AbilityNet
diff --git a/_guide/tools.md b/_guide/tools.md
index 50a9fdc4..072a8f31 100644
--- a/_guide/tools.md
+++ b/_guide/tools.md
@@ -112,7 +112,7 @@ Evaluate WAI-ARIA according to the [ARIA in HTML](https://www.w3.org/TR/html-ari
 ### Web based contrast tools
 
 *   [Contrast Finder by Tanaguru](https://contrast-finder.tanaguru.com/) - [Contrast Finder GitHub Page](https://github.com/Tanaguru/Contrast-Finder)
-*   [Contrast-Ratio.com](https://contrast-Ratio.com) - [Contrast-Ratio GitHub Page]([https://github.com/LeaVerou/contrast-ratio](https://github.com/siege-media/contrast-ratio)) \
+*   [Contrast-Ratio.com](https://contrast-Ratio.com) - [Contrast-Ratio GitHub Page](https://github.com/siege-media/contrast-ratio) \
 Allows for testing of contrast of text on top of a semi transparent background.
 *   [Contrast Checker](https://contrast-checker.glitch.me/) - [Contrast Checker on Glitch](https://glitch.com/edit/#!/contrast-checker?path=server.js%3A1%3A0)
 *   [ButtonBuddy](https://buttonbuddy.dev/) - [ButtonBuddy on GitHub](https://github.com/5t3ph/buttonbuddy)
diff --git a/package.json b/package.json
index bc5a1a03..0cf47d17 100644
--- a/package.json
+++ b/package.json
@@ -4,6 +4,7 @@
   "license": "Creative Commons Attribution-ShareAlike 4.0 International Public License",
   "scripts": {
     "postinstall": "bundle",
+    "build": "bundle exec jekyll build",
     "start": "bundle exec jekyll serve",
     "start-detached": "bundle exec jekyll serve --detach",
     "setup-uswds": "npm run sync-assets && npm run sync-sass",
@@ -11,7 +12,8 @@
     "sync-sass": "rsync -avr --delete node_modules/uswds/src/stylesheets/ _sass/uswds/src/",
     "pa11y-ci:home": "pa11y-ci http://127.0.0.1:4000",
     "pa11y-ci:sitemap": "pa11y-ci --sitemap http://127.0.0.1:4000/sitemap.xml --sitemap-find https://accessibility.civicactions.com --sitemap-replace http://127.0.0.1:4000 --sitemap-exclude \"/*.pdf\"",
-    "cypress-tests": "cypress run --browser chrome --headless"
+    "cypress-tests": "cypress run --browser chrome --headless",
+    "link-checker": "bundle exec htmlproofer --ignore-status-codes \"999,403,302,0\" --ignore-urls \"/fonts.gstatic.com/\" --enforce_https \"false\" ./_site"
   },
   "dependencies": {
     "simple-jekyll-search": "^1.9.2"