diff --git a/.gitignore b/.gitignore
index 5c91b60..17e5238 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,4 @@
 _site/
 .sass-cache/
 .jekyll-metadata
+Gemfile.lock
diff --git a/Gemfile b/Gemfile
new file mode 100644
index 0000000..15db6c5
--- /dev/null
+++ b/Gemfile
@@ -0,0 +1,9 @@
+source 'https://rubygems.org'
+
+require 'json'
+require 'open-uri'
+versions = JSON.parse(open('https://pages.github.com/versions.json').read)
+
+gem 'github-pages', versions['github-pages']
+gem 'html-proofer'  # travis CI per: http://jekyllrb.com/docs/continuous-integration/
+gem 'scss_lint'  # travis CI per: http://jekyllrb.com/docs/continuous-integration/
diff --git a/script/cibuild b/script/cibuild
new file mode 100755
index 0000000..cda9409
--- /dev/null
+++ b/script/cibuild
@@ -0,0 +1,6 @@
+#!/usr/bin/env bash
+set -e # halt script on error
+
+bundle exec jekyll build
+# htmlproofer tests—[README](https://github.com/gjtorikian/html-proofer/blob/master/README.md)
+bundle exec htmlproofer --disable-external ./_site