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

Take Location Out of the Key Phrase and Into the Search Engine
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Take Location Out of the Key Phrase and Into the Search Engine

Rand’s recent SEOmoz post offered some great tips to improve multi-city local results using SEO. I have been thinking about local results in Google also, and in my opinion, SEO techniques coupled with Google Place’s display of brick and mortal local results have gotten much too focused on physical location, and I believe I have a creative way to change up the playing field.

Google's Unspoken Failures Are Limiting Your Potential
Danny Dover

Google's Unspoken Failures Are Limiting Your Potential

As people in relationships spend time with each other they start to leverage each others natural strengths to efficiently store information about the world around them. "Honey, what is the name of my Aunt's employer?" "Babe, what do you call that thing that heats bread?" They rely on each other to store information that is mutually beneficial. Some believe this p...

Find the Question to your Yahoo Answers!
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Find the Question to your Yahoo Answers!

Have you considered using Yahoo Answers to try and drive some traffic to your website / blog? Yahoo Answers has become a very popular network for knowledge thirsty question askers and knowledge soaked answer-meisters, and they are all potential visitors for your site. This article aims to provide a detailed look at some tips / tricks for becoming the glowing Yahoo Answers guru you've always wan...

Is Every Query Local Now?
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Is Every Query Local Now?

The good folks over at Direct Online Marketing posted a list of the A-Z results from Google Instant when you type in a single letter. Well that's fun, I'll try too. Survey says... half of my results are different. Location-based sugg...

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What is Mobile Search Engine Transcoding?
Cindy Krum

What is Mobile Search Engine Transcoding?

Ok, in the mobile world, it is important to understand that Google sometimes lies; (Uhhh! Say it ain’t so!) Actually, all of the major search engines do it with mobile results - It is called 'transcoding.' The search engines will show the full search engine listing for the mobile-unfriendly page (like normal), but when you click on it, they will automatically take you to a temporary url that represents a ‘transcoded’ version of the page you requested, (rather than delivering you to the actual page listed in the search results). This temporary transcoded page actually lives on a subdomain hosted by the search engine, and shows a scraped version of the page you requested.

The Muddled World of Mobile Carrier Search Results
Cindy Krum

The Muddled World of Mobile Carrier Search Results

When I am thinking about mobile SEO, I pay specific attention to the order of the results and the inclusion of Universal Results. In their nature, Universal results are infinitely more clickable, as we know from traditional SEO, but in the mobile world, Universal Results are the fun results – because they are often have more potential for interaction with the phone than they would on a traditional computer.

New Insights into Googlebot
R

New Insights into Googlebot

Google has found an intelligent way to arrange the results for a search query. But an interesting question is where we can find that intelligence. A lot of people conducted research into the indexing process and even more tested ranking factors on their weight, but we wondered how smart Googlebot itself is. To make a start we took some statements and com...