Moz's list of the most popular 500 websites on the internet, based on an index of over 40 trillion links!| Moz
Keeping URLs as simple, relevant, compelling, and accurate as possible is key to getting both your users and search engines to understand them (a prerequisite to ranking well). Although URLs can include ID numbers and codes, the best practice is to use words that people can comprehend. Overuse of…| Moz
Welcome to this refreshed installment of our educational Next Level series! Originally published in June 2016 this blog has been rewritten to include new tool screenshots and refreshed workflows. Together we’ll uncover keywords in the vastness of the long tail.| Moz
Once you've got everything in place, it's time to expand your influence by earning attention and links from other sites and influencers.| Moz
External Links are hyperlinks that point at (target) any domain other than the domain the link exists on (source). In layman's terms, if another website links to you, this is considered an external link to your site. Similarly, if you link out to another website, this is also considered an external…| Moz
Page Authority (PA) is a score developed by Moz that predicts how well a specific page will rank on search engine result pages (SERP). Page Authority scores range from one to 100, with higher scores corresponding to a greater ability to rank.| Moz
Within SEO, link building plays an important role in driving organic traffic via search engines, especially in competitive industries. When combined with strong technical SEO foundations, great on-page SEO, excellent content, and a good user experience, link building can be super effective at driving more organic traffic. | Moz
What Is Link Juice? How Is Link Equity Determined| Moz
Robots.txt is a text file webmasters create to instruct robots (typically search engine robots) how to crawl & index pages on their website. The robots.txt file is part of the robots exclusion protocol (REP), a group of web standards that regulate how robots crawl the web, access and index content,…| Moz
Backlinks are created when one website links to another. Backlinks are especially valuable for SEO because they represent a "vote" that can help you to rank. Learn more about backlinks and SEO.| Moz
Discover link opportunities and monitor link building efforts with Moz Link Explorer. This free backlink checker provides easy access to Domain Authority, Page Authority, linking domains, and more in just a few clicks.| Moz
Anchor text is the clickable (often blue) text in a hyperlink. It's SEO best practice to write anchor link text that's descriptive and relevant to the page you're linking to.| 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