diff --git a/.github/workflows/health_check.yml b/.github/workflows/health_check.yml
new file mode 100644
index 0000000..e62095e
--- /dev/null
+++ b/.github/workflows/health_check.yml
@@ -0,0 +1,26 @@
+name: Bang Health Check
+
+on:
+  schedule:
+    # Schedule to run at 15:00 UTC first day of every month
+    - cron: "0 15 1 * *"
+  workflow_dispatch:
+
+jobs:
+  health_check:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v3
+        with:
+          fetch-depth: 0
+
+      - name: Set up Ruby
+        uses: ruby/setup-ruby@v1
+        with:
+          ruby-version: 3.0
+          bundler-cache: true
+
+      - name: Run health check
+        run: |
+          bundle exec ruby scripts/health_check.rb
diff --git a/Gemfile b/Gemfile
index 287e80f..fbf404a 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,7 +1,8 @@
-source 'https://rubygems.org'
+source "https://rubygems.org"
 
 gem "json"
 gem "rspec", "~> 3.13"
-gem 'addressable', '~> 2.8', '>= 2.8.6'
+gem "addressable", "~> 2.8", ">= 2.8.6"
 
 gem "terminal-table", "~> 3.0"
+gem "whirly"
diff --git a/Gemfile.lock b/Gemfile.lock
index dd7db3a..f7d8231 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -22,6 +22,8 @@ GEM
     terminal-table (3.0.2)
       unicode-display_width (>= 1.1.1, < 3)
     unicode-display_width (2.5.0)
+    whirly (0.3.0)
+      unicode-display_width (>= 1.1)
 
 PLATFORMS
   ruby
@@ -32,6 +34,7 @@ DEPENDENCIES
   json
   rspec (~> 3.13)
   terminal-table (~> 3.0)
+  whirly
 
 BUNDLED WITH
    2.5.4
diff --git a/scripts/health_check.rb b/scripts/health_check.rb
new file mode 100644
index 0000000..d653c05
--- /dev/null
+++ b/scripts/health_check.rb
@@ -0,0 +1,54 @@
+require "json"
+require "net/http"
+require "uri"
+require "whirly"
+
+bangs_json = JSON.parse(File.read("data/bangs.json"))
+kagi_bangs_json = JSON.parse(File.read("data/kagi_bangs.json"))
+assist_bangs_json = JSON.parse(File.read("data/assistant_bangs.json"))
+
+errored = []
+mutex = Mutex.new
+
+def check_url(bang, errored, mutex)
+  return if bang["u"].start_with?("/")
+
+  bang_url = bang["u"].gsub("{{{s}}}", "example").strip
+  url = URI.parse(bang_url)
+
+  Net::HTTP.get_response(url)
+rescue => e
+  mutex.synchronize { errored << [bang, e] }
+  # puts "#{bang_url} is offline (#{bang["s"]}). Error: \n  #{e}"
+end
+
+Whirly.configure spinner: "dots"
+Whirly.start
+
+all_bangs = bangs_json + kagi_bangs_json + assist_bangs_json
+threads = []
+
+all_bangs.each_with_index do |bang, idx|
+  Whirly.status = "Bang #{bang["s"]} (#{idx + 1}/#{all_bangs.size})"
+
+  threads << Thread.new { check_url(bang, errored, mutex) }
+
+  # Limit the number of concurrent threads to avoid overwhelming the system
+  if threads.size >= 100
+    threads.each(&:join)
+    threads.clear
+  end
+end
+
+# Ensure all remaining threads are completed
+threads.each(&:join)
+
+Whirly.stop
+
+errored.each do |error|
+  bang, e = error
+
+  puts "#{bang["u"]} is offline. Error: \n  #{e}"
+end
+
+exit 1 if errored.size > 0