Intermediate Lessons

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

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

What role does being in DMOZ play in rankings?

Can you explain what Google means by "trust"?

Authorship markup

Authorship markup using URL parameters

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

How does Google determine page speed?

Ranking reports

How do reconsideration requests work at Google?

Underscores vs. dashes in URLs

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?

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?

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?

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?

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?

Can coding errors affect how a page is indexed?

Can I flag spammy links to my site that I didn't create?

Can I tell Google about links to my site?

Does Google support cross-domain rel="canonical"?

How do we report a problem with our search results listings?

Is there an advantage to using rel="canonical" over a 301 redirect?

Will Google improve its crawling of AJAX?

How is Google helping Google Analytics users with site speed?

How is Google Public DNS data used?

How would a non-optimized site outrank a site which has done SEO?

Why are some of Google's products not available outside of the US?

Which websites are popular among Googlers?

Do URL shorteners pass anchor text?

How can I make sure that Google knows my content is original?

Why aren't geographic target and query parameters specified in robots.txt?

Does Google do a "holiday change"?

How should I handle localized content?