diff --git a/Gemfile b/Gemfile
index 54db357..80cbff7 100644
--- a/Gemfile
+++ b/Gemfile
@@ -19,3 +19,4 @@
 source 'https://rubygems.org'
 gem 'github-pages'
 gem 'jekyll-paginate'
+gem 'html-proofer'
diff --git a/travis.yml b/travis.yml
new file mode 100644
index 0000000..75b768a
--- /dev/null
+++ b/travis.yml
@@ -0,0 +1,9 @@
+language: ruby
+rvm:
+  - 2.1
+script:
+  - bundle exec jekyll build
+  - bundle exec htmlproofer ./_site --only-4xx --check-html --empty-alt-ignore
+env:
+  global:
+    - NOKOGIRI_USE_SYSTEM_LIBRARIES=true # speeds up installation of html-proofer