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

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'...

Google Experiencing Growing Pains?
O

Google Experiencing Growing Pains?

Google is now beginning to appreciate the unique challenges that come with size, scale and sprawling strategies.Like Uncle Ben said to Peter Parker — with great power comes great responsibility. And as Peter's alter-ego Spider-Man knows only too well, with great power comes a vast array of threats and enemies, too.Google aren't super heroes. They're a bunch of cl...

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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...

Don't Use Yahoo to Search Your Own Site
Rishi Lakhani

Don't Use Yahoo to Search Your Own Site

During the week – I was going over various sphinns, when I came across Goats Apples and Link building – I like inventive headlines, so I went ahead to read the story – and came across this SEOmoz comment referenced in the post:“I knew the reciprocal linking we were doing was over kill and done only to improve ...

Google "Did You Mean" Stealing Our Traffic?
J

Google "Did You Mean" Stealing Our Traffic?

In analysing keywords for our client who runs a local agency (what is reclamebureau in dutch), we discovered something nice at first. According to the search-engine keyword request database we noticed that reclamebureau was asked 95 times a day and have 440.000 competitors. Because of the fact in the Netherlands we have for some words two different ways of spelling (old and mod...