Browse Lessons

Does Google treat .co as a generic TLD?

Do multiple links from one page to another page count?

Why don't 404 pages disappear immediately from search results?

How does Google determine the canonical source for a piece of content?

If I get links to a URL with and without a trailing slash, will my PageRank be split?

What is your advice for geotargeting sites with ccTLDs?

Do spelling and grammar matter when evaluating content and site quality?

What role does being in DMOZ play in rankings?

Cloaking

Can you explain what Google means by "trust"?

Is the "Panda" algorithm update affecting non-English searches?

Authorship markup

Authorship markup using URL parameters

What are the best practices for PDF optimization?

Are paid directories held to the same standards as paid links?

Should I spend more time on improving my content or on fighting scrapers?

What steps can I take to diagnose a drop in ranking?

How does Google determine page speed?

Ranking reports

Does Google consider SEO to be spam?

What are the 3-5 most important things I should pay attention to in Google Webmaster Tools?

How do reconsideration requests work at Google?

Underscores vs. dashes in URLs

Malware

Changing your website's domain name

Moving your website to a different host

Is there a limit to how many 301 (Permanent) redirects I can do on a site?

What is Caffeine indexing?

Will changing the code and layout of my pages while moving to new URLs affect their rankings?

Does selling the same product on three different domains look spammy?

Do robots follow links on a page which uses rel="canonical" to point to a different page?

Why aren't the Google Toolbar PageRank values updated more often?

Should I add nofollow to banner ads?

Will setting the rel="canonical" attribute of a page to itself cause a loop?

Would you rather spend time with a perfectly optimized website or a barrel full of kittens?

Will showing recent posts on my homepage cause a duplicate content issue?

Why do Amazon.com pages tend to rank well for product queries?

How much content should be on a homepage?

What should I do if the "noindex" attribute doesn't appear to be working?

Is the same content posted under different TLDs a problem?

Can switching to HTTPS harm ranking?

Is serving Googlebot a transcript in place of a video considered to be cloaking?

Why do porn sites have lower PageRank?

What's your opinion on microsites?

How does Google handle pages with content that changes on each page load?

Should internal links use rel="nofollow"?

Is there a way to indicate boilerplate content on a page?

What do you think about Blekko?