diff --git a/site/lib/constants.js b/site/lib/constants.js
new file mode 100644
index 0000000..2cceaed
--- /dev/null
+++ b/site/lib/constants.js
@@ -0,0 +1,3 @@
+export const YOUTUBE_REGEX = /^.*((youtu.be\/)|(v\/)|(\/u\/\w\/)|(embed\/)|(watch\?))\??v?=?([^#\&\?]*).*/;
+
+export const TWITTER_REGEX = /^https?:\/\/twitter\.com\/(?:#!\/)?(\w+)\/status(es)?\/(\d+)/;
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