Editor's Note: A previous version of this article appeared at KISSmetrics.com.
Underneath all the beautiful images, perfect typography, and wonderfully placed calls to action lies your website source code. This is the code your browser turns into delightful experiences for your visitors and customers on a daily basis.
Google and other search engines "read" this code to determine where your webpages should appear in their indexes for a given search query. So, a lot of search engine optimization (SEO) comes down to what's in your source code.
This is a quick guide to show you how to read your own website source code in order to make sure it's properly SEO-ed and, really, to teach you how to sanity-check your SEO efforts. I also will go over a few other situations where knowing how to view and examine the right parts of source code can help with other marketing efforts.
Finally, if you're paying someone to manage SEO on your site, we'll go over keeping tabs on his or her progress. To get started, just click the "Next" link below.