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

Is Google Making Site Search Redundant?
Pete Watson-Wailes

Is Google Making Site Search Redundant?

So here's an interesting thought... You're Google. You have every page on everyone's site in the world (or near as makes no odds) indexed. What more can you do with that information?Well, how about providing a search function for that person's site. Looks like that's what the big G is thinking at the moment at any rate. Have a look at the following examples, and see w...

How to Track the Evolution of Search Engine Algorithms & Why It's Important to Do So
Rand Fishkin

How to Track the Evolution of Search Engine Algorithms & Why It's Important to Do So

The vast majority of search marketers operating in the organic space at least lay claim to "following the latest algorithms" at the search engines, and in 90% of the client pitches I've ever heard (or made, for that matter), the subject comes up at least once. However, I think this is still a topic about which there's not a lot of true understanding and for those new to the field, it'...

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The 4 Biggest Threats Google Faces
Rand Fishkin

The 4 Biggest Threats Google Faces

I had a fascinating breakfast discussion with Jonathan Hochman from Hochman Consultants on Friday about Google's market dominance and the potential roads that might eventually lead to their fall. Naturally, we looked for comparison companies to help inform our thinking. While firms like AT&T and Exxon met their demise from anti-trust laws, Google is l...

Rogue PPC Results from Google
H

Rogue PPC Results from Google

I have to confess from the outset that I'm new to this industry, my background being very much as an offline marketer, so apologies if anyone's come across this already!I was googling some fairly generic PPC terms - 'PPC Management'; 'PPC Agencies'; and so on. I then remembered that I needed to write a document for our sales team, and so I googled 'managi...

When Google Comes Up Number One for Your Domain Name
Rand Fishkin

When Google Comes Up Number One for Your Domain Name

SEOmoz's Q+A section has been a goldmine of eye-opening experiences for the entire staff, and never more so than when we see something so bizarre, so surprising, that it defies explanation. Tonight, we not only got to see one of these fascinating search riddles, we're actually able to share (a rare event as most domains with specific search problems ask to re...

Complaining about Some Google Missteps
Rand Fishkin

Complaining about Some Google Missteps

I don't generally like to pick on Google, or anyone else in particular for that matter, but since the search giant is hitting on all cylinders, I think they can probably take a little nudge or two. I'm going to keep this short, sweet and to the point (and also very self-centric, because it's tough to effectively analyze everything that might have happened on someone else's site): ...

Yahoo! Panama - An Interview with Mona Elesseily
Rand Fishkin

Yahoo! Panama - An Interview with Mona Elesseily

It's sad that we don't cover the paid side of search marketing here at SEOmoz with more frequency, but with a little luck and some elbow grease (or, at least, borrowed expertise), I'm trying to dip our toe a bit deeper. Thus, it's with great pleasure that I welcome Mona Elesseily from Page Zero. Mona's a paid search guru, a fellow Northwesterner (albeit a Canadian one) and one of my favori...