You might want to tell Google your relationship with outbound links on your site. Discover how to qualify outbound links with rel attribute values.| Google for Developers
An HTTP status code is a server response to a browser’s request. When you visit a website, your browser sends a request to the site’s server, and the server then responds to the browser’s request with a three-digit code: the HTTP status code. Common codes are: 1xx Informational requests, 2xx…| Moz
This is a meta description — a HTML element that summarizes a web page. While not directly tied to rankings, descriptions can affect CTR. Go on, click!| Moz
Domain Authority is Moz's best estimate of how well a domain will perform in organic search results. Learn how Domain Authority is calculated and why it's important to SEO.| Moz
Internal Links are hyperlinks that point to another webpage (or resource) on the same website/domain. Hyperlinks are either 'external' or 'internal' depending on their target URL destination. Internal links are most useful for establishing a strong website architecture and spreading link equity.| Moz
About /robots.txt| www.robotstxt.org
New to SEO? Looking for higher rankings and traffic through Search Engine Optimization? The Beginner's Guide to SEO has been read over 10 million times.| Moz