Search Engines

Understanding how search engines work, Google in particular, is important when working in SEO. The basics of crawling and indexing are amazingly useful to understand if you want to rank your own content.

Additionally, Google updates its algorithm several times a year. Understanding the more significant updates, and how they work, can help you to craft content and SEO strategies that are up-to-date.

We've written extensively about how search engines work, and included some of the top resources here. You can also browse the latest posts on search engines from the Moz blog below.

How Search Engines Work : New to SEO? Start with the basics of how search engines operate with our free beginner's guide.

Search Engine Ranking and Visibility : Learn the fundamentals of how search engines rank content on search engine result pages.

Google Algorithm Update History : A complete history of Google algorithm updates since 2000. This includes important links and references for understanding how Google works.

How Search Engines Value Links : Search engines work off a number of signals, but two of the most important are content and links. In this video, Rand Fishkin explains the basics of link evaluation.

MozCast : Is Google updating it's algorithm as we speak? MozCast is the Google algorithm weather report, so you can see how much Google results are changing each day.

Most Recent Articles on Search Engines

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The Penguin That Taught Me to Eat Humble Pie
Chris Holgate

The Penguin That Taught Me to Eat Humble Pie

My relationship with SEOmoz began in the second quarter of 2012, approximately 20 minutes after receiving a rather alarming message in our Google Webmaster Tools account. Suddenly our orders were cut in half overnight with no evident reason as to why. We had always strived to offer the very best in customer service and our customer retention rate was fantastic so why would things simply dry up so quickly and without any warning?

Semantic Web and Link Building without Links > The Future for SEO?
Simon Penson

Semantic Web and Link Building without Links > The Future for SEO?

Rand’s recent WBF about co-occurrence was a real wake up call for those still transfixed with link building practices of old. While anchor text based links may still have some effect, there is little arguing the fact that the factor’s importance is dwindling. In its place are things like social signals, link age, and, most importantly, a growing reliance on relevancy and how that is deciphered.

How to Do SEO in 2013
Woj Kwasi

How to Do SEO in 2013

Whether you're new in the game or a seasoned campaigner, you would have noticed by now that Search Engine Optimisation is by no means a walk in the park. Algorithm changes get made a multitude of times annually; 516 changes were made by Google alone in 2010, and they're just the ones they tell us about. As a result, staying on top of the game is quite a task for anyone, individual or team.